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href='https://hst-docs.stsci.edu/acsihb' class="offcanvas__section-link" target='_blank' >ACS Instrument Handbook</a></li><li class="offcanvas__item noChildren"><a href='https://hst-docs.stsci.edu/acsdhb' class="offcanvas__section-link" target='_blank' >ACS Data Handbook</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/acs/documentation/instrument-science-reports-isrs' class="offcanvas__section-link" >Instrument Science Reports (ISRs)</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/acs/documentation/stsci-analysis-newsletter-stan' class="offcanvas__section-link" >STScI Analysis Newsletter (STAN)</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/acs/documentation/conference-posters' class="offcanvas__section-link" >Conference Posters</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/acs/shortcuts' class="offcanvas__section-link" >Shortcuts</a><button 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href='http://etc.stsci.edu/etc/input/acs/imaging/' class="offcanvas__section-link" target='_blank' >ACS Imaging ETC</a></li><li class="offcanvas__item noChildren"><a href='http://etc.stsci.edu/etc/input/acs/spectroscopic/' class="offcanvas__section-link" target='_blank' >ACS Spectroscopic ETC</a></li><li class="offcanvas__item noChildren"><a href='http://etc.stsci.edu/etc/input/acs/rampfilter/' class="offcanvas__section-link" target='_blank' >ACS Ramp Filter ETC</a></li><li class="offcanvas__item noChildren"><a href='/hst/proposing' class="offcanvas__section-link" target='_self' >HST Proposing</a></li><li class="offcanvas__item noChildren"><a href='/hst/proposing/phase-i' class="offcanvas__section-link" target='_blank' >Phase I Proposals</a></li><li class="offcanvas__item noChildren"><a href='/hst/proposing/phase-ii' class="offcanvas__section-link" target='_self' >Phase II Proposal</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='https://hst-docs.stsci.edu/display/HSP/The+Hubble+Space+Telescope+Primer+for+Cycle+32' class="offcanvas__section-link" target='_blank' >HST Cycle 32 Primer</a></li></ul></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/cos' class="offcanvas__section-link" >Cosmic Origins Spectrograph</a><button class="offcanvas__section-toggle" id="Cosmic_Origins_Spectrograph_26_control" type="button" aria-label="Cosmic Origins Spectrograph submenu" aria-controls="Cosmic_Origins_Spectrograph_26_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Cosmic_Origins_Spectrograph_26_section" class="offcanvas__list" data-level="4" aria-labelledby="Cosmic_Origins_Spectrograph_26_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/cos/instrument-design' class="offcanvas__section-link" >Instrument Design</a></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/cos/performance' class="offcanvas__section-link" >Performance</a><button class="offcanvas__section-toggle" id="Performance_27_control" type="button" aria-label="Performance submenu" aria-controls="Performance_27_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Performance_27_section" class="offcanvas__list" data-level="5" aria-labelledby="Performance_27_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/cos/performance/monitoring' class="offcanvas__section-link" >Monitoring</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/cos/performance/sensitivity' class="offcanvas__section-link" >Sensitivity</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/cos/performance/spectral-resolution' class="offcanvas__section-link" >Spectral Resolution and Line Spread Functions</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/cos/proposing' class="offcanvas__section-link" >Proposing</a><button class="offcanvas__section-toggle" id="Proposing_28_control" type="button" aria-label="Proposing submenu" aria-controls="Proposing_28_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Proposing_28_section" class="offcanvas__list" data-level="5" aria-labelledby="Proposing_28_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/cos/proposing/cos2025-policies' class="offcanvas__section-link" >COS2025 Policies</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/cos/proposing/observing-strategies' class="offcanvas__section-link" >Observing Strategies</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/cos/proposing/wavelength-tool' class="offcanvas__section-link" >Wavelength Tool</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/cos/data-analysis--software-tools' class="offcanvas__section-link" >Data Analysis & Software Tools</a></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/cos/calibration' class="offcanvas__section-link" >Calibration</a><button class="offcanvas__section-toggle" 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class="offcanvas__section-link" >Cycle 30 Calibration Plan</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/cos/calibration/cycle-29-calibration-plan' class="offcanvas__section-link" >Cycle 29 Calibration Plan</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/cos/calibration/cycle-28-calibration-plan' class="offcanvas__section-link" >Cycle 28 Calibration Plan</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/cos/calibration/cycle-27-calibration-plan' class="offcanvas__section-link" >Cycle 27 Calibration Plan</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/cos/calibration/cycle-26-calibration-plan' class="offcanvas__section-link" >Cycle 26 Calibration Plan</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/cos/calibration/cycle-25-calibration-plan' class="offcanvas__section-link" >Cycle 25 Calibration Plan</a></li><li class="offcanvas__item 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class="offcanvas__section-link" >Cycle 19 Calibration Plan</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/cos/calibration/cycle-18-calibration-plan' class="offcanvas__section-link" >Cycle 18 Calibration Plan</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/cos/calibration/cycle-17-calibration-plan' class="offcanvas__section-link" >Cycle 17 Calibration Plan</a></li></ul></li><li class="offcanvas__item hasChildren lastInLevel"><a href='/hst/instrumentation/cos/documentation' class="offcanvas__section-link" >Documentation</a><button class="offcanvas__section-toggle" id="Documentation_30_control" type="button" aria-label="Documentation submenu" aria-controls="Documentation_30_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Documentation_30_section" class="offcanvas__list" data-level="5" aria-labelledby="Documentation_30_control"><li class="offcanvas__item noChildren firstInLevel"><a href='https://hst-docs.stsci.edu/display/COSIHB' class="offcanvas__section-link" target='_blank' >COS Instrument Handbook</a></li><li class="offcanvas__item noChildren"><a href='https://hst-docs.stsci.edu/display/COSDHB' class="offcanvas__section-link" target='_blank' >COS Data Handbook</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/cos/documentation/instrument-science-reports-isrs' class="offcanvas__section-link" >Instrument Science Reports (ISRs)</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/cos/documentation/stsci-analysis-newsletter-stan' class="offcanvas__section-link" >STScI Analysis Newsletter (STAN)</a></li><li class="offcanvas__item noChildren"><a 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aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Fine_Guidance_Sensors_31_section" class="offcanvas__list" data-level="4" aria-labelledby="Fine_Guidance_Sensors_31_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/fgs/history' class="offcanvas__section-link" >History</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/fgs/instrument-design' class="offcanvas__section-link" >Instrument Design</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/fgs/performance' class="offcanvas__section-link" >Performance</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/fgs/proposing' class="offcanvas__section-link" >Proposing</a></li><li 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firstInLevel"><a href='/hst/instrumentation/stis/instrument-design' class="offcanvas__section-link" >Instrument Design</a><button class="offcanvas__section-toggle" id="Instrument_Design_34_control" type="button" aria-label="Instrument Design submenu" aria-controls="Instrument_Design_34_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Instrument_Design_34_section" class="offcanvas__list" data-level="5" aria-labelledby="Instrument_Design_34_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/stis/instrument-design/apertures' class="offcanvas__section-link" >Apertures</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/stis/instrument-design/detectors' class="offcanvas__section-link" >Detectors</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/stis/instrument-design/filters' class="offcanvas__section-link" >Filters</a></li><li class="offcanvas__item hasChildren lastInLevel"><a href='/hst/instrumentation/stis/instrument-design/gratings--prism' class="offcanvas__section-link" >Gratings / Prism</a><button class="offcanvas__section-toggle" id="Gratings_-_Prism_35_control" type="button" aria-label="Gratings / Prism submenu" aria-controls="Gratings_-_Prism_35_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Gratings_-_Prism_35_section" class="offcanvas__list" data-level="6" aria-labelledby="Gratings_-_Prism_35_control"><li class="offcanvas__item noChildren firstInLevel lastInLevel"><a href='/hst/instrumentation/stis/instrument-design/gratings--prism/spectral-format-plots' class="offcanvas__section-link" >Spectral Format Plots</a></li></ul></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/stis/performance' class="offcanvas__section-link" >Performance</a><button class="offcanvas__section-toggle" id="Performance_36_control" type="button" aria-label="Performance submenu" aria-controls="Performance_36_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Performance_36_section" class="offcanvas__list" data-level="5" aria-labelledby="Performance_36_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/stis/performance/anomalies' class="offcanvas__section-link" >Anomalies</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/stis/performance/image-quality' class="offcanvas__section-link" >Image Quality</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/stis/performance/monitoring' class="offcanvas__section-link" >Monitoring</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/stis/performance/sensitivity' class="offcanvas__section-link" >Sensitivity</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/stis/performance/spectral-resolution' class="offcanvas__section-link" >Spectral Resolution</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/stis/performance/throughput' class="offcanvas__section-link" >Throughput</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/stis/performance/background-noise' class="offcanvas__section-link" >Background Noise</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/stis/proposing' class="offcanvas__section-link" >Proposing</a><button class="offcanvas__section-toggle" id="Proposing_37_control" type="button" aria-label="Proposing submenu" aria-controls="Proposing_37_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Proposing_37_section" class="offcanvas__list" data-level="5" aria-labelledby="Proposing_37_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/stis/proposing/go-wavecal-aperture-selection' class="offcanvas__section-link" >GO Wavecal Aperture Selection</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/stis/proposing/exception-reports' class="offcanvas__section-link" >Exception Reports</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/stis/observing-strategies' class="offcanvas__section-link" >Observing Strategies</a><button class="offcanvas__section-toggle" id="Observing_Strategies_38_control" type="button" aria-label="Observing Strategies submenu" aria-controls="Observing_Strategies_38_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Observing_Strategies_38_section" class="offcanvas__list" data-level="5" aria-labelledby="Observing_Strategies_38_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/stis/observing-strategies/target-acquisition' class="offcanvas__section-link" >Target Acquisition</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/stis/observing-strategies/spectroscopy' class="offcanvas__section-link" >Spectroscopy</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/stis/observing-strategies/imaging' class="offcanvas__section-link" >Imaging</a></li><li class="offcanvas__item hasChildren lastInLevel"><a href='/hst/instrumentation/stis/observing-strategies/available-modes' class="offcanvas__section-link" >Available Modes</a><button class="offcanvas__section-toggle" id="Available_Modes_39_control" type="button" aria-label="Available Modes submenu" aria-controls="Available_Modes_39_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Available_Modes_39_section" class="offcanvas__list" data-level="6" aria-labelledby="Available_Modes_39_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/stis/observing-strategies/available-modes/high-contrast-coronagraphy-at-small-inner-working-angles-with-bar5' class="offcanvas__section-link" >High Contrast Coronagraphy at Small Inner Working Angles with BAR5</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/stis/observing-strategies/available-modes/stis-bar5' class="offcanvas__section-link" >STIS BAR5</a></li></ul></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/stis/data-analysis-and-software-tools' class="offcanvas__section-link" >Data Analysis and Software Tools</a><button class="offcanvas__section-toggle" id="Data_Analysis_and_Software_Tools_40_control" type="button" aria-label="Data Analysis and Software Tools submenu" aria-controls="Data_Analysis_and_Software_Tools_40_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Data_Analysis_and_Software_Tools_40_section" class="offcanvas__list" data-level="5" aria-labelledby="Data_Analysis_and_Software_Tools_40_control"><li class="offcanvas__item noChildren firstInLevel lastInLevel"><a href='/hst/instrumentation/stis/data-analysis-and-software-tools/pixel-based-cti' class="offcanvas__section-link" >Pixel Based CTI</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/stis/calibration' class="offcanvas__section-link" >Calibration</a></li><li class="offcanvas__item hasChildren"><a 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class="offcanvas__section-link" >STScI Analysis Newsletter (STAN)</a></li><li class="offcanvas__item noChildren"><a href='https://hst-docs.stsci.edu/stisihb' class="offcanvas__section-link" target='_blank' >STIS Instrument Handbook</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='https://hst-docs.stsci.edu/stisdhb' class="offcanvas__section-link" target='_blank' >STIS Data Handbook</a></li></ul></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/stis/flux-recalibration' class="offcanvas__section-link" >Flux Recalibration</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/wfc3' class="offcanvas__section-link" >Wide Field Camera 3</a><button class="offcanvas__section-toggle" id="Wide_Field_Camera_3_42_control" type="button" aria-label="Wide Field Camera 3 submenu" aria-controls="Wide_Field_Camera_3_42_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Wide_Field_Camera_3_42_section" class="offcanvas__list" data-level="4" aria-labelledby="Wide_Field_Camera_3_42_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/wfc3/instrument-design' class="offcanvas__section-link" >Instrument Design</a></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/wfc3/performance' class="offcanvas__section-link" >Performance</a><button class="offcanvas__section-toggle" id="Performance_43_control" type="button" aria-label="Performance submenu" aria-controls="Performance_43_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg 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Strategies</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/wfc3/proposing/exception-reports' class="offcanvas__section-link" >Exception Reports</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/wfc3/data-analysis' class="offcanvas__section-link" >Data Analysis</a><button class="offcanvas__section-toggle" id="Data_Analysis_46_control" type="button" aria-label="Data Analysis submenu" aria-controls="Data_Analysis_46_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Data_Analysis_46_section" class="offcanvas__list" data-level="5" aria-labelledby="Data_Analysis_46_control"><li class="offcanvas__item noChildren firstInLevel"><a href='https://github.com/spacetelescope/WFC3Library/tree/master/notebooks/filter_transformations' class="offcanvas__section-link" target='_blank' >Color Conversion Notebook</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/data-analysis/full-well-depth' class="offcanvas__section-link" >Full Well Depth</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/documentation/grism-resources' class="offcanvas__section-link" >Grism Spectroscopy</a></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/wfc3/data-analysis/ir-flats' class="offcanvas__section-link" >IR Flats</a><button class="offcanvas__section-toggle" id="IR_Flats_47_control" type="button" aria-label="IR Flats submenu" aria-controls="IR_Flats_47_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="IR_Flats_47_section" class="offcanvas__list" data-level="6" aria-labelledby="IR_Flats_47_control"><li class="offcanvas__item noChildren firstInLevel lastInLevel"><a href='/hst/instrumentation/wfc3/data-analysis/ir-flats/blob-delta-flats-from-earth-flat-calibration-images' class="offcanvas__section-link" >Blob Delta-flats from Earth Flat Calibration Images</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/data-analysis/ir-persistence' class="offcanvas__section-link" >IR Persistence</a></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/wfc3/data-analysis/photometric-calibration' class="offcanvas__section-link" >Photometric Calibration</a><button class="offcanvas__section-toggle" id="Photometric_Calibration_48_control" type="button" aria-label="Photometric Calibration submenu" aria-controls="Photometric_Calibration_48_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Photometric_Calibration_48_section" class="offcanvas__list" data-level="6" aria-labelledby="Photometric_Calibration_48_control"><li class="offcanvas__item hasChildren firstInLevel"><a href='/hst/instrumentation/wfc3/data-analysis/photometric-calibration/uvis-photometric-calibration' class="offcanvas__section-link" >UVIS Photometric Calibration</a><button class="offcanvas__section-toggle" id="UVIS_Photometric_Calibration_49_control" type="button" aria-label="UVIS Photometric Calibration submenu" aria-controls="UVIS_Photometric_Calibration_49_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="UVIS_Photometric_Calibration_49_section" class="offcanvas__list" data-level="7" aria-labelledby="UVIS_Photometric_Calibration_49_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/wfc3/data-analysis/photometric-calibration/uvis-photometric-calibration/quad-filter-photometry' class="offcanvas__section-link" >Quad Filter Photometry</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/data-analysis/photometric-calibration/uvis-photometric-calibration/uv-filter-modified-keywords' class="offcanvas__section-link" >UV Filter Modified Keywords</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/wfc3/data-analysis/photometric-calibration/uvis-photometric-calibration/previous-uvis-photometric-calibrations' class="offcanvas__section-link" >Previous UVIS Photometric Calibrations</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/data-analysis/photometric-calibration/uvis-encircled-energy' class="offcanvas__section-link" >UVIS Encircled Energy</a></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/wfc3/data-analysis/photometric-calibration/ir-photometric-calibration' class="offcanvas__section-link" >IR Photometric Calibration</a><button class="offcanvas__section-toggle" id="IR_Photometric_Calibration_50_control" type="button" aria-label="IR Photometric Calibration submenu" aria-controls="IR_Photometric_Calibration_50_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="IR_Photometric_Calibration_50_section" class="offcanvas__list" data-level="7" aria-labelledby="IR_Photometric_Calibration_50_control"><li class="offcanvas__item noChildren firstInLevel lastInLevel"><a href='/hst/instrumentation/wfc3/data-analysis/photometric-calibration/ir-photometric-calibration/previous-ir-photometric-calibrations' class="offcanvas__section-link" >Previous IR Photometric Calibrations</a></li></ul></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/wfc3/data-analysis/photometric-calibration/ir-encircled-energy' class="offcanvas__section-link" >IR Encircled Energy</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/data-analysis/pixel-area-maps' class="offcanvas__section-link" >Pixel Area Maps</a></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/wfc3/data-analysis/psf' class="offcanvas__section-link" >PSF</a><button class="offcanvas__section-toggle" id="PSF_51_control" type="button" aria-label="PSF submenu" aria-controls="PSF_51_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="PSF_51_section" class="offcanvas__list" data-level="6" aria-labelledby="PSF_51_control"><li class="offcanvas__item noChildren firstInLevel lastInLevel"><a href='/hst/instrumentation/wfc3/data-analysis/psf/psf-search' class="offcanvas__section-link" >PSF Search</a></li></ul></li><li class="offcanvas__item noChildren"><a href='http://archive.stsci.edu/hst/index.html' class="offcanvas__section-link" target='_blank' >Retrieving Data</a></li><li 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tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Calibration_Plan_52_section" class="offcanvas__list" data-level="5" aria-labelledby="Calibration_Plan_52_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/wfc3/calibration-plan/tv3-results' class="offcanvas__section-link" >TV3 Results</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/calibration-plan/tv2-results' class="offcanvas__section-link" >TV2 Results</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/calibration-plan/tv1-results' class="offcanvas__section-link" >TV1 Results</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/wfc3/calibration-plan/old-versions' class="offcanvas__section-link" >Old Versions</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/wfc3/software-tools' class="offcanvas__section-link" >Software Tools</a><button class="offcanvas__section-toggle" id="Software_Tools_53_control" type="button" aria-label="Software Tools submenu" aria-controls="Software_Tools_53_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Software_Tools_53_section" class="offcanvas__list" data-level="5" aria-labelledby="Software_Tools_53_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/wfc3/software-tools/crosstalk' class="offcanvas__section-link" >Crosstalk</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/software-tools/cte-tools' class="offcanvas__section-link" >CTE Tools</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/software-tools/exposure-time-calculators' class="offcanvas__section-link" >Exposure Time Calculators</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/wfc3/software-tools/pipeline' class="offcanvas__section-link" >Pipeline</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/wfc3/documentation' class="offcanvas__section-link" >Documentation</a><button class="offcanvas__section-toggle" id="Documentation_54_control" type="button" aria-label="Documentation submenu" aria-controls="Documentation_54_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Documentation_54_section" class="offcanvas__list" data-level="5" aria-labelledby="Documentation_54_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/wfc3/documentation/instrument-science-reports-isrs' class="offcanvas__section-link" >Instrument Science Reports (ISRs)</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/documentation/stsci-analysis-newsletter-stan' class="offcanvas__section-link" >STScI Analysis Newsletter (STAN)</a></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/wfc3/documentation/grism-resources' class="offcanvas__section-link" >Grism Resources</a><button class="offcanvas__section-toggle" id="Grism_Resources_55_control" type="button" aria-label="Grism Resources submenu" aria-controls="Grism_Resources_55_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Grism_Resources_55_section" class="offcanvas__list" data-level="6" aria-labelledby="Grism_Resources_55_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/wfc3/documentation/grism-resources/grism-data-analysis' class="offcanvas__section-link" >Grism Data Analysis</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/documentation/grism-resources/wfc3-ir-grism-data-reduction-cookbook' class="offcanvas__section-link" >WFC3 IR Grism Data Reduction Cookbook</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/documentation/grism-resources/grism-frequently-asked-questions' class="offcanvas__section-link" >Grism Frequently Asked Questions</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/documentation/grism-resources/ir-grism-sky-images' class="offcanvas__section-link" >IR Grism Sky Images</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/documentation/grism-resources/wfc3-g141-calibrations' class="offcanvas__section-link" >WFC3 G141 Calibrations</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/documentation/grism-resources/wfc3-g280-calibrations' class="offcanvas__section-link" >WFC3 G280 Calibrations</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/wfc3/documentation/grism-resources/wfc3-g102-calibrations' class="offcanvas__section-link" >WFC3 G102 Calibrations</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/wfc3/documentation/grism-resources/uvis-grism-sky-images' class="offcanvas__section-link" >UVIS Grism Sky Images</a></li></ul></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/wfc3/documentation/conference-posters' class="offcanvas__section-link" >Conference Posters</a></li></ul></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/wfc3/news' class="offcanvas__section-link" >News</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/focus-and-pointing' class="offcanvas__section-link" >Focus and Pointing</a><button class="offcanvas__section-toggle" id="Focus_and_Pointing_56_control" type="button" aria-label="Focus and Pointing submenu" aria-controls="Focus_and_Pointing_56_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Focus_and_Pointing_56_section" class="offcanvas__list" data-level="4" aria-labelledby="Focus_and_Pointing_56_control"><li class="offcanvas__item hasChildren firstInLevel"><a href='/hst/instrumentation/focus-and-pointing/focus' class="offcanvas__section-link" >Focus</a><button class="offcanvas__section-toggle" id="Focus_57_control" type="button" aria-label="Focus submenu" aria-controls="Focus_57_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Focus_57_section" class="offcanvas__list" data-level="5" aria-labelledby="Focus_57_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/focus-and-pointing/focus/secondary-mirror-moves' class="offcanvas__section-link" >Secondary Mirror Moves</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/focus-and-pointing/focus/hst-focus-model' class="offcanvas__section-link" >HST Focus Model</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/focus-and-pointing/focus/tiny-tim-hst-psf-modeling' class="offcanvas__section-link" >Tiny Tim HST PSF Modeling</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/focus-and-pointing/pointing' class="offcanvas__section-link" >Pointing</a><button class="offcanvas__section-toggle" id="Pointing_58_control" type="button" aria-label="Pointing submenu" aria-controls="Pointing_58_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Pointing_58_section" class="offcanvas__list" data-level="5" aria-labelledby="Pointing_58_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/focus-and-pointing/pointing/jitter-file-format-definition' class="offcanvas__section-link" >Jitter File Format Definition</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/focus-and-pointing/pointing/determining-an-observations-orientation' class="offcanvas__section-link" >Determining an Observation鈥檚 Orientation</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/focus-and-pointing/fov-geometry' class="offcanvas__section-link" >FoV Geometry</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/focus-and-pointing/documentation' class="offcanvas__section-link" >Documentation</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/legacy' class="offcanvas__section-link" >Legacy Instruments</a><button class="offcanvas__section-toggle" id="Legacy_Instruments_59_control" type="button" aria-label="Legacy Instruments submenu" aria-controls="Legacy_Instruments_59_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Legacy_Instruments_59_section" class="offcanvas__list" data-level="4" aria-labelledby="Legacy_Instruments_59_control"><li class="offcanvas__item hasChildren firstInLevel"><a href='/hst/instrumentation/legacy/nicmos' class="offcanvas__section-link" >NICMOS</a><button class="offcanvas__section-toggle" id="NICMOS_60_control" type="button" aria-label="NICMOS submenu" aria-controls="NICMOS_60_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="NICMOS_60_section" class="offcanvas__list" data-level="5" aria-labelledby="NICMOS_60_control"><li class="offcanvas__item noChildren firstInLevel lastInLevel"><a href='/hst/instrumentation/legacy/nicmos/instrument-science-reports-isrs' class="offcanvas__section-link" >Instrument Science Reports (ISRs)</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/legacy/wfpc2' class="offcanvas__section-link" >WFPC2</a><button class="offcanvas__section-toggle" id="WFPC2_61_control" type="button" aria-label="WFPC2 submenu" aria-controls="WFPC2_61_section" tabindex="-1" aria-expanded="false"><span 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aria-controls="Reference_Data_for_Calibration_and_Tools_62_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Reference_Data_for_Calibration_and_Tools_62_section" class="offcanvas__list" data-level="4" aria-labelledby="Reference_Data_for_Calibration_and_Tools_62_control"><li class="offcanvas__item noChildren firstInLevel"><a href='https://hst-crds.stsci.edu/' class="offcanvas__section-link" target='_blank' >Calibration Reference Data System (CRDS)</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/file-and-table-structures' class="offcanvas__section-link" >File and Table Structures</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/reference-file-retreival-instructions' class="offcanvas__section-link" >Reference File Retrieval Instructions</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/legacy-instrument-reference-files' class="offcanvas__section-link" >Legacy Instrument Reference Files</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/synphot-throughput-tables' class="offcanvas__section-link" >Synphot Throughput Tables</a></li><li class="offcanvas__item hasChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs' class="offcanvas__section-link" >Astronomical Catalogs</a><button class="offcanvas__section-toggle" id="Astronomical_Catalogs_63_control" type="button" aria-label="Astronomical Catalogs submenu" aria-controls="Astronomical_Catalogs_63_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Astronomical_Catalogs_63_section" class="offcanvas__list" data-level="5" aria-labelledby="Astronomical_Catalogs_63_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/the-agn-atlas' class="offcanvas__section-link" >The AGN Atlas</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/atmo-2020-atmosphere-models' class="offcanvas__section-link" >ATMO 2020 Atmosphere Models</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/brown-dwarfs-and-substellar-objects' class="offcanvas__section-link" >Brown Dwarfs and Substellar Objects</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/bruzual-atlas' class="offcanvas__section-link" >Bruzual Atlas</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/the-bruzual-charlot-atlas' class="offcanvas__section-link" >The Bruzual-Charlot Atlas</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/bruzual-and-charlot-2003' class="offcanvas__section-link" >Bruzual and Charlot 2003</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/bruzual-persson-gunn-stryker-atlas-list' class="offcanvas__section-link" >Bruzual-Persson-Gunn-Stryker Atlas list</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/buser-kurucz-atlas' class="offcanvas__section-link" >Buser-Kurucz Atlas</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calobs' class="offcanvas__section-link" >CALOBS</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec' class="offcanvas__section-link" >CALSPEC</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/castelli-and-kurucz-atlas' class="offcanvas__section-link" >Castelli and Kurucz Atlas</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/composite-qso-spectra-for-nir' class="offcanvas__section-link" >Composite QSO Spectra for NIR</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/the-galactic-emission-line-object-atlas' class="offcanvas__section-link" >The Galactic Emission Line Object Atlas</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/gunn-stryker-atlas-list' class="offcanvas__section-link" >Gunn-Stryker Atlas list</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/interstellar-extinction-curves' class="offcanvas__section-link" >Interstellar Extinction Curves</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/jacoby-hunter-christian-atlas' class="offcanvas__section-link" >Jacoby-Hunter-Christian Atlas</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/the-kinney-calzetti-spetral-atlas' class="offcanvas__section-link" >The Kinney-Calzetti Spectral Atlas</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/kinney-models' class="offcanvas__section-link" >Kinney Models</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/kurucz-1993-models' class="offcanvas__section-link" >Kurucz 1993 Models</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/non-stellar-spectra' class="offcanvas__section-link" >Non-Stellar Spectra</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/novae-models' class="offcanvas__section-link" >Novae Models</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/phoenix-models-available-in-synphot' class="offcanvas__section-link" >Phoenix Models available in Synphot</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/planetary-nebula-spectra' class="offcanvas__section-link" >Planetary Nebula Spectra</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/pickles-atlas' class="offcanvas__section-link" >Pickles Atlas</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/simple-stellar-population-atlas' class="offcanvas__section-link" >Simple Stellar Population Atlas</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/solar-system-objects-spectra' class="offcanvas__section-link" >Solar System Objects Spectra</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/swire-galaxies' class="offcanvas__section-link" >SWIRE Galaxies</a></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/the-trds-brown-atlas' class="offcanvas__section-link" >The TRDS Brown Atlas</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/trds-brown19-spectra-of-agns' class="offcanvas__section-link" >TRDS Brown19 Spectra of AGNs</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/modewave-data' class="offcanvas__section-link" >Modewave Data</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hst/instrumentation/reference-data-for-calibration-and-tools/documentation' class="offcanvas__section-link" >Documentation</a></li></ul></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hst/documentation' class="offcanvas__section-link" >Documentation</a><button class="offcanvas__section-toggle" id="Documentation_64_control" type="button" aria-label="Documentation submenu" aria-controls="Documentation_64_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use 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Design Reference Mission (SODRM)</a><button class="offcanvas__section-toggle" id="Science_Operations_Design_Reference_Mission_-SODRM-_69_control" type="button" aria-label="Science Operations Design Reference Mission (SODRM) submenu" aria-controls="Science_Operations_Design_Reference_Mission_-SODRM-_69_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Science_Operations_Design_Reference_Mission_-SODRM-_69_section" class="offcanvas__list" data-level="5" aria-labelledby="Science_Operations_Design_Reference_Mission_-SODRM-_69_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/jwst/about-jwst/history/science-operations-design-reference-mission-sodrm/solar-system-programs' class="offcanvas__section-link" 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href='/jwst/about-jwst/history/science-operations-design-reference-mission-sodrm/instrumentation-calibration-programs' class="offcanvas__section-link" >Instrumentation Calibration Programs</a></li><li class="offcanvas__item noChildren"><a href='/jwst/about-jwst/history/science-operations-design-reference-mission-sodrm/observation-calibration-programs' class="offcanvas__section-link" >Observation Calibration Programs</a></li><li class="offcanvas__item noChildren"><a href='/jwst/about-jwst/history/science-operations-design-reference-mission-sodrm/statistical-summary' class="offcanvas__section-link" >Statistical Summary</a></li></ul></li></ul></li><li class="offcanvas__item noChildren"><a href='/jwst/about-jwst/stsci-and-jwst' class="offcanvas__section-link" >STScI and JWST</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/jwst/about-jwst/science-themes' class="offcanvas__section-link" >Science Themes</a></li></ul></li><li class="offcanvas__item hasChildren"><a 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data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-98cf790a-7e24-4e4d-ad50-4f48ec768865" aria-describedby="card-read-more-98cf790a-7e24-4e4d-ad50-4f48ec768865"> <a href="/contents/news/stis-stans/october-2024-stan?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" class="has-icon no-file-icon card-link" > October 2024 STAN</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>October</span> 28, <span>2024</span> </div> <div class="preheader__item">STIS NEWSLETTERS</div> </div> <p class="news-item__summary"> In this STAN, the STIS Team presents a new CCD cosmic ray monitor, as well as updates to the latest version of the STIS Data Handbook, a new Jupyter notebook on Low Count Uncertainties in STIS, and an instrument science report on Updating the Sensitivity Curves of the STIS Echelles (Post-SM4).</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/stis-stans/october-2024-stan.html?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" id="card-read-more-98cf790a-7e24-4e4d-ad50-4f48ec768865" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-0fdaeeeb-f04c-481f-b7cf-db274b0e3997" aria-describedby="card-read-more-0fdaeeeb-f04c-481f-b7cf-db274b0e3997"> <a href="/contents/news/acs-stans/acs-stan-oct-2024?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" class="has-icon no-file-icon card-link" > ACS STAN October 2024</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>October</span> 8, <span>2024</span> </div> <div class="preheader__item">ACS NEWSLETTERS</div> </div> <p class="news-item__summary"> This STAN describes the HST Call for Cycle 32 Bridge Programs with ACS/WFC and WFC3/IR, and upcoming Serial CTE correction to CALACS.</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/acs-stans/acs-stan-oct-2024.html?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" id="card-read-more-0fdaeeeb-f04c-481f-b7cf-db274b0e3997" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-c05fbd51-4833-441a-906e-bc39bd11e066" aria-describedby="card-read-more-c05fbd51-4833-441a-906e-bc39bd11e066"> <a href="/contents/news/wfc3-stans/wfc3-stan-issue-47-october-2024?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" class="has-icon no-file-icon card-link" > WFC3 STAN Issue 47, October 2024</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>October</span> 7, <span>2024</span> </div> <div class="preheader__item">WFC3 NEWSLETTERS</div> </div> <p class="news-item__summary"> Contents: 1 Call for Cycle 32 Bridge Programs with WFC3/IR and ACS/WFC 2 AAS Meeting Workshop "Hands-on Hubble" 3 New Documentation</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/wfc3-stans/wfc3-stan-issue-47-october-2024.html?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" id="card-read-more-c05fbd51-4833-441a-906e-bc39bd11e066" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-a952f087-3eb5-44e4-84a9-7736610a3776" aria-describedby="card-read-more-a952f087-3eb5-44e4-84a9-7736610a3776"> <a href="/contents/news/hst-observer-news/call-for-hubble-cycle-32-bridge-programs?" class="has-icon no-file-icon card-link" > Call for Hubble Cycle 32 Bridge Programs</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>September</span> 26, <span>2024</span> </div> <div class="preheader__item">HST NEWS</div> </div> <p class="news-item__summary"> We are offering a special HST observing opportunity to the astronomy community to propose for "Bridge Programs" with ACS/WFC and WFC3/IR, in anticipation of likely operational changes in Cycle 33.</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/hst-observer-news/call-for-hubble-cycle-32-bridge-programs.html?" id="card-read-more-a952f087-3eb5-44e4-84a9-7736610a3776" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-2fb5a6a9-1277-4380-ab7a-d4def8a77919" aria-describedby="card-read-more-2fb5a6a9-1277-4380-ab7a-d4def8a77919"> <a href="/contents/news/stis-stans/july-2024-stan?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" class="has-icon no-file-icon card-link" > July 2024 STAN</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>July</span> 10, <span>2024</span> </div> <div class="preheader__item">STIS NEWSLETTERS</div> </div> <p class="news-item__summary"> This STAN is focused on providing information and guidelines for the preparation and submission of HST Cycle 32 GO Phase II proposals, for both new and experienced users of STIS. The first section gives tips and tricks for the recently announced Reduced Gyro Mode operations, followed by an updated listing of policies, tips, and tricks for preparing successful Phase II proposals. The section on STIS instrument news includes new recommendations for wavecal exposure times for some FUV settings. The section on STIS resources lists some recently developed software tools for the examination and analysis of STIS data and notes several recent STIS presentations and Instrument Science Reports.</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/stis-stans/july-2024-stan.html?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" id="card-read-more-2fb5a6a9-1277-4380-ab7a-d4def8a77919" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-61566fca-3d69-471b-a60c-44af2af55dd1" aria-describedby="card-read-more-61566fca-3d69-471b-a60c-44af2af55dd1"> <a href="/contents/news/wfc3-stans/wfc3-stan-issue-46-june-2024?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" class="has-icon no-file-icon card-link" > WFC3 STAN Issue 46, June 2024</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>June</span> 13, <span>2024</span> </div> <div class="preheader__item">WFC3 NEWSLETTERS</div> </div> <p class="news-item__summary"> Contents: 1 Notes for Phase 2 Submissions 2 New Release of WFC3 Data Handbook 3 Revisiting x-CTE in WFC3/UVIS 4 WFC3 and WFPC2 PSF Update 5 A New Notebook for Point Spread Function Modeling 6 WFC3/UVIS G280 Flux Calibration Updates 7 New Documentation</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/wfc3-stans/wfc3-stan-issue-46-june-2024.html?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" id="card-read-more-61566fca-3d69-471b-a60c-44af2af55dd1" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-1534768e-91ed-4901-9066-740ca959d3dc" aria-describedby="card-read-more-1534768e-91ed-4901-9066-740ca959d3dc"> <a href="/contents/news/hst-observer-news/hubble-transition-to-reduced-gyro-mode?" class="has-icon no-file-icon card-link" > Hubble Transition to Reduced Gyro Mode</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>June</span> 6, <span>2024</span> </div> <div class="preheader__item">HST NEWS</div> </div> <p class="news-item__summary"> On June 4, NASA announced that Hubble is transitioning to Reduced Gyro Mode (RGM).</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/hst-observer-news/hubble-transition-to-reduced-gyro-mode.html?" id="card-read-more-1534768e-91ed-4901-9066-740ca959d3dc" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-7a16122c-492c-42e5-a9d0-6255002fef5b" aria-describedby="card-read-more-7a16122c-492c-42e5-a9d0-6255002fef5b"> <a href="/contents/news/cos-stans/may-2024-stan?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" class="has-icon no-file-icon card-link" > May 2024 STAN</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>May</span> 17, <span>2024</span> </div> <div class="preheader__item">COS NEWSLETTERS</div> </div> <p class="news-item__summary"> In this STAN we announce the delivery of new time-dependent sensitivity and photometric throughput tables for FUV observations.</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/cos-stans/may-2024-stan.html?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" id="card-read-more-7a16122c-492c-42e5-a9d0-6255002fef5b" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-36c793a2-e4be-4429-b048-c82badab3c34" aria-describedby="card-read-more-36c793a2-e4be-4429-b048-c82badab3c34"> <a href="/contents/news/stis-stans/march-2024-stan?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" class="has-icon no-file-icon card-link" > March 2024 STAN</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>March</span> 8, <span>2024</span> </div> <div class="preheader__item">STIS NEWSLETTERS</div> </div> <p class="news-item__summary"> In this STAN, the STIS Team presents Cycle 32 updates to documentation and news to STIS users submitting Phase I proposals, as well as updates regarding stis_cti and time dependent sensitivity.</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/stis-stans/march-2024-stan.html?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" id="card-read-more-36c793a2-e4be-4429-b048-c82badab3c34" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-bb806113-e013-4de7-b974-02c8348c24f9" aria-describedby="card-read-more-bb806113-e013-4de7-b974-02c8348c24f9"> <a href="/contents/news/wfc3-stans/wfc3-stan-issue-45-march-2024?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" class="has-icon no-file-icon card-link" > WFC3 STAN Issue 45, March 2024</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>March</span> 6, <span>2024</span> </div> <div class="preheader__item">WFC3 NEWSLETTERS</div> </div> <p class="news-item__summary"> Contents: 1 Phase I Proposal Preparation Tips 2 WFC3/IR Time-Dependent Sensitivity 3 Updates to DrizzlePac's Readthedocs 4 Updated Configuration & Sensitivity Files for HSTaXe</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/wfc3-stans/wfc3-stan-issue-45-march-2024.html?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" id="card-read-more-bb806113-e013-4de7-b974-02c8348c24f9" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-7a52098b-77a5-4a49-b915-0600165b8a1a" aria-describedby="card-read-more-7a52098b-77a5-4a49-b915-0600165b8a1a"> <a href="/contents/news/stis-stans/february-2024-stan?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" class="has-icon no-file-icon card-link" > February 2024 STAN</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>February</span> 26, <span>2024</span> </div> <div class="preheader__item">STIS NEWSLETTERS</div> </div> <p class="news-item__summary"> In this STAN we announce the delivery of the Hubble Advanced Spectral Products (HASP) program, as well as summarize the STIS presentations given at the 243rd American Astronomical Society (AAS) meeting in New Orleans.</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/stis-stans/february-2024-stan.html?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" id="card-read-more-7a52098b-77a5-4a49-b915-0600165b8a1a" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-5c582843-ed21-493c-8bdf-74cc4d260ce0" aria-describedby="card-read-more-5c582843-ed21-493c-8bdf-74cc4d260ce0"> <a href="/contents/news/cos-stans/february-2024-stan?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" class="has-icon no-file-icon card-link" > February 2024 STAN</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>February</span> 26, <span>2024</span> </div> <div class="preheader__item">COS NEWSLETTERS</div> </div> <p class="news-item__summary"> In this STAN we announce the delivery of the Hubble Advanced Spectral Products (HASP) program.</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/cos-stans/february-2024-stan.html?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" id="card-read-more-5c582843-ed21-493c-8bdf-74cc4d260ce0" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-c800b45c-ff26-4e89-a9e0-3005f2a8af27" aria-describedby="card-read-more-c800b45c-ff26-4e89-a9e0-3005f2a8af27"> <a href="/contents/news/hst-observer-news/multi-cycle-treasury-opportunity-in-hst-cycle-32?" class="has-icon no-file-icon card-link" > Multi-Cycle Treasury Opportunity in HST Cycle 32</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>February</span> 20, <span>2024</span> </div> <div class="preheader__item">HST NEWS</div> </div> <p class="news-item__summary"> We are pleased to announce the release of the Multi-Cycle Treasury (MCT) proposal cycle for HST Cycle 32. The deadline is Tuesday, March 26, 2024.</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/hst-observer-news/multi-cycle-treasury-opportunity-in-hst-cycle-32.html?" id="card-read-more-c800b45c-ff26-4e89-a9e0-3005f2a8af27" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-987e0c88-e525-44a4-8627-ddf3ef1ef2f6" aria-describedby="card-read-more-987e0c88-e525-44a4-8627-ddf3ef1ef2f6"> <a href="/contents/news/wfc3-stans/wfc3-stan-issue-44-january-2024?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" class="has-icon no-file-icon card-link" > WFC3 STAN Issue 44, January 2024</a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>January</span> 8, <span>2024</span> </div> <div class="preheader__item">WFC3 NEWSLETTERS</div> </div> <p class="news-item__summary"> Contents: 1 WFC3 at AAS 243! 2 Cycle 32 Instrument Handbook Published 3 Migration of WFC3 Library to HST Notebooks 4 Slitlessutils: A Python Package for Extracting and Simulating Wide-Field Slitless Spectroscopy for WFC3 and ACS 4 New Documentation</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/wfc3-stans/wfc3-stan-issue-44-january-2024.html?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" id="card-read-more-987e0c88-e525-44a4-8627-ddf3ef1ef2f6" aria-hidden="true">Read More</span> </p> </div> </article></li> <li> <article class="news-item card" data-module-dynamic="card"> <div class="news-item__content"> <h4 id="h4-filterable-content-type-9b7aa195-cf2a-41c7-881a-2d29f0577f0d" aria-describedby="card-read-more-9b7aa195-cf2a-41c7-881a-2d29f0577f0d"> <a href="/contents/news/cos-stans/january-2024-stan?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" class="has-icon no-file-icon card-link" > January 2024 STAN </a></h4> <div class="preheader preheader--news-listing-header"> <div class="preheader__item"> <span>January</span> 4, <span>2024</span> </div> <div class="preheader__item">COS NEWSLETTERS</div> </div> <p class="news-item__summary"> In this STAN we describe COS posters to be presented at the 243rd AAS meeting.</p> <p> <span class="arrow-link" data-href="/cms/render/live/en/sites/www/contents/news/cos-stans/january-2024-stan.html?filterUUID=d9eec683-e2ac-47cc-8234-93224ab278e4" id="card-read-more-9b7aa195-cf2a-41c7-881a-2d29f0577f0d" aria-hidden="true">Read More</span> </p> </div> </article></li> </ol> </div> <nav class="pagination" aria-labelledby="Pagination-"> <h3 id="Pagination-" class="sr-only">Pagination </h3> <ol role="list" class="no-marker pagination-list" aria-labelledby="Pagination-"> <li class="pagination-link pagination-link__first disabled" aria-hidden='true'> <span class="sr-only-mobile">First</span> <span class="sr-only">Page</span> </li> <li class="pagination-link pagination-link__previous disabled" 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