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STIS Data Handbook - HST User Documentation
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margin-bottom: 8px; table-layout: fixed; width: 100%;" class="conf-macro output-block" data-hasbody="true" data-macro-name="sp-pagelayout"> <div style="display: table-cell; margin: 8px 0; padding: 0 10px; vertical-align: top; word-wrap: break-word; width: auto;"> <div style="display: block; overflow-x: auto;"> <p style="text-align: left;"><em>Version 8.0 - September 2024<br></em><a data-macro-name="sp-plaintextbody-link" href="/stisdhb/files/148155858/148155859/1/1726172108906/stis_dhb.pdf" class="conf-macro output-inline" data-hasbody="true">PDF version</a></p><h1 style="text-align: left;" id="STISDataHandbook-SpaceTelescopeImagingSpectrographDataHandbook">Space Telescope Imaging Spectrograph Data Handbook</h1><p><br></p><h1 id="STISDataHandbook-TableofContents">Table of Contents</h1><p></p><div class="plugin_pagetree conf-macro output-inline" data-hasbody="false" data-macro-name="pagetree"> <div id="pagetreesearch"> <form method="POST" class="aui" action="/plugins/pagetreesearch/pagetreesearch.action" name="pagetreesearchform"> <input type="hidden" name="atl_token" value="9fde7ab0dc06261945e46a81f656bee8dbf6f689"> <input type="hidden" name="ancestorId" value="148155858"> <input type="hidden" name="spaceKey" value="STISDHB"> <input type="text" class="text medium-field" size="20" name="queryString"> <input type="submit" class="aui-button" value="Search"> </form> </div> <div> <span class="plugin_pagetree_status hidden">Collapse all</span> <div class="plugin_pagetree_expandcollapse"> <a class="plugin_pagetree_expandall" href="#">Expand all</a> <a class="plugin_pagetree_collapseall" href="#">Collapse all</a> </div> </div> <ul role="list" aria-busy="true" class="plugin_pagetree_children_list plugin_pagetree_children_list_noleftspace"> <div class="plugin_pagetree_children"> </div> </ul> <fieldset class="hidden"> <input type="hidden" name="treeId" value=""> <input type="hidden" name="treeRequestId" value="/plugins/pagetree/naturalchildren.action?decorator=none&excerpt=false&sort=position&reverse=false&disableLinks=false&expandCurrent=false&placement="> <input type="hidden" name="treePageId" value="148155858"> <input type="hidden" name="noRoot" value="false"> <input type="hidden" name="rootPageId" value="148155858"> <input type="hidden" name="rootPage" value=""> <input type="hidden" name="startDepth" value="0"> <input type="hidden" name="spaceKey" value="STISDHB"> <input type="hidden" name="i18n-pagetree.loading" value="Loading..."> <input type="hidden" name="i18n-pagetree.error.permission" value="Unable to load page tree. It seems that you do not have permission to view the root page."> <input type="hidden" name="i18n-pagetree.eeror.general" value="There was a problem retrieving the page tree. Please check the server log file for more information."> <input type="hidden" name="loginUrl" value="/login.action?os_destination=%2Fstisdhb&permissionViolation=true"> <input type="hidden" name="mobile" value="false"> <input type="hidden" name="placement" value=""> <fieldset class="hidden"> <input type="hidden" name="ancestorId" value="148155858"> </fieldset> </fieldset> </div><p></p><h1 style="text-align: left;" id="STISDataHandbook-UserSupport">User Support</h1><p style="text-align: left;">Please contact the HST Help Desk for assistance. We encourage users to access the new web portal where you can submit your questions directly to the appropriate team of experts.</p><ul><li><strong><span class="Bold" style="color: rgb(0,0,0);">Website:</span></strong><span> </span><span class="LinkURL" style="color: rgb(0,0,255);"><a rel="nofollow" style="text-decoration: none;" href="http://hsthelp.stsci.edu/" class="external-link">http://hsthelp.stsci.edu</a></span></li><li><span class="LinkURL" style="color: rgb(0,0,255);"><strong><span class="Bold" style="color: rgb(0,0,0);">E-mail:</span></strong><span> </span><a rel="nofollow" style="text-decoration: none;" href="mailto:help@stsci.edu" class="external-link">help@stsci.edu</a></span></li></ul><h1 id="STISDataHandbook-AdditionalResources">Additional Resources</h1><p>Information and other resources are available on the STIS website:</p><ul><li><a rel="nofollow" class="external-link" href="http://www.stsci.edu/hst/instrumentation/stis">http://www.stsci.edu/hst/instrumentation/stis</a></li></ul><h1 id="STISDataHandbook-RevisionHistory">Revision History</h1><div class="table-wrap"><table class="wrapped confluenceTable" style="text-align: center;"><colgroup><col><col><col></colgroup><tbody><tr><th class="confluenceTh"><p style="text-align: left;">Version</p></th><th class="confluenceTh"><p style="text-align: left;">Date</p></th><th class="confluenceTh"><p style="text-align: left;">Editor</p></th></tr><tr><td class="confluenceTd"><p style="text-align: left;">8.0</p></td><td class="confluenceTd"><p style="text-align: left;">September 2024</p></td><td class="confluenceTd"><p style="text-align: left;">E. Rickman and J. Brown</p></td></tr><tr><td class="confluenceTd"><p style="text-align: left;">7.0</p></td><td class="confluenceTd"><p style="text-align: left;">April 2019</p></td><td class="confluenceTd"><p style="text-align: left;">S. Tony Sohn</p></td></tr><tr><td class="confluenceTd"><p style="text-align: left;">6.0</p></td><td class="confluenceTd"><p style="text-align: left;">May 2011</p></td><td class="confluenceTd"><p style="text-align: left;">K. Azalee Bostroem and Charles Proffitt</p></td></tr><tr><td class="confluenceTd"><p style="text-align: left;">5.0</p></td><td class="confluenceTd"><p style="text-align: left;">July 2007</p></td><td class="confluenceTd"><p style="text-align: left;">Linda Dressel, Sherie Holfeltz & Jessica Kim Quijano</p></td></tr><tr><td class="confluenceTd"><p style="text-align: left;">4.0</p></td><td class="confluenceTd"><p style="text-align: left;">January 2002</p></td><td class="confluenceTd"><p style="text-align: left;">Thomas M. Brown, STIS Editor<br>Bahram Mobasher, Chief Editor</p></td></tr><tr><td class="confluenceTd"><p style="text-align: left;">3.1</p></td><td class="confluenceTd"><p style="text-align: left;">March 1998</p></td><td class="confluenceTd"><p style="text-align: left;">Tony Keyes</p></td></tr><tr><td class="confluenceTd"><p style="text-align: left;">3.0, Vol. II</p></td><td class="confluenceTd"><p style="text-align: left;">October 1997</p></td><td class="confluenceTd"><p style="text-align: left;">Tony Keyes</p></td></tr><tr><td class="confluenceTd"><p style="text-align: left;">3.0, Vol. I</p></td><td class="confluenceTd"><p style="text-align: left;">October 1997</p></td><td class="confluenceTd"><p style="text-align: left;">Mark Voit</p></td></tr><tr><td class="confluenceTd"><p style="text-align: left;">2.0</p></td><td class="confluenceTd"><p style="text-align: left;">December 1995</p></td><td class="confluenceTd"><p style="text-align: left;">Claus Leitherer</p></td></tr><tr><td class="confluenceTd"><p style="text-align: left;">1.0</p></td><td class="confluenceTd"><p style="text-align: left;">February 1994</p></td><td class="confluenceTd"><p style="text-align: left;">Stefi Baum</p></td></tr></tbody></table></div><h1 id="STISDataHandbook-Contributors">Contributors</h1><p>This document is written and maintained by the STIS Team in the Instruments Division of STScI with the assistance of associates in the Operations and Engineering Division. Contributions to the current edition were made by J. Carlberg, T. Monroe, S. Lockwood, D. Welty, A. Fullerton, M. Dallas, M. Siebert, S. Dieterich, M. Mingozzi, J. Lothringer, and J. Debes.</p><h1 id="STISDataHandbook-Citation">Citation</h1><p>In publications, refer to this document as:</p><ul><li>Rickman, E., Brown J., et al., 2024, "STIS Data Handbook", Version 8.0, (Baltimore: STScI).</li></ul> </div> </div> </div> <div class="next-prev"> <a href="" id=prev-link>«Previous</a> <a href="" id=next-link>Next»</a> </div> <div class="space-search"> <form action="/dosearchsite.action" class="space-search-form row reverse fill" method="GET" id="space-search-form"> <button class='aui-button aui-button-subtle' type='submit' form='search-form'><span class="aui-icon aui-icon-large aui-iconfont-search">Search</span></button> <input type="text" v-on:keyup="search" class="fill" id="q" autocomplete="off" name="queryString" value="" placeholder="Search STIS Data Handbook" /> <input type="hidden" name="s" value="*" /> <input type="hidden" id=where name="where" value="STISDHB" /> <div id="space-quick-search" class="space-quick-search"> <ul> <li v-for="result in results"> <a :href="result.href" :class="result.className"><span>{{result.name}}</span></a> </li> </ul> </div> </form> </div> <div style="display: table; margin-bottom: 8px; table-layout: fixed; width: 100%;" class="conf-macro output-block" data-hasbody="true" data-macro-name="sp-pagelayout"> <div style="display: table-cell; margin: 8px 0; padding: 0 10px; vertical-align: top; word-wrap: break-word; width: auto;"> <div style="display: block; overflow-x: auto;"> <p></p><div class="pageTree-container conf-macro output-block" data-hasbody="false" data-macro-name="custom-page-tree"> <ul class="pageTree"> <li id="pageTree_148155858" class="pageTreeRoot"> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/stisdhb"> STIS Data Handbook </a> <ul id="pagetreelvl2"> <li id="pageTree_148155860" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/stisdhb/preface">Preface</a> <ul id="pagetreelvl3"> <li id="pageTree_148155861" class=""> <span class="no-children">•</span> <a href="/stisdhb/preface/handbook-structure">Handbook Structure</a> </li> <li id="pageTree_148155862" class=""> <span class="no-children">•</span> <a href="/stisdhb/preface/typographic-conventions">Typographic Conventions</a> </li> </ul> </li> <li id="pageTree_148155863" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/stisdhb/chapter-1-stis-overview">Chapter 1: STIS Overview</a> <ul id="pagetreelvl3"> <li id="pageTree_148155864" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-1-stis-overview/1-1-instrument-capabilities-and-design">1.1 Instrument Capabilities and Design</a> </li> <li id="pageTree_148155865" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-1-stis-overview/1-2-basic-instrument-operations">1.2 Basic Instrument Operations</a> </li> <li id="pageTree_148155866" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-1-stis-overview/1-3-stis-operations-on-side-2">1.3 STIS Operations on Side-2</a> </li> <li id="pageTree_148155867" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-1-stis-overview/1-4-failure-of-side-2">1.4 Failure of Side-2</a> </li> <li id="pageTree_148155868" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-1-stis-overview/1-5-stis-closeout">1.5 STIS Closeout</a> </li> <li id="pageTree_148155869" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-1-stis-overview/1-6-post-servicing-mission-4-operation">1.6 Post Servicing Mission 4 Operation</a> </li> <li id="pageTree_148155870" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-1-stis-overview/1-7-stis-operations-and-calibration-timeline">1.7 STIS Operations and Calibration Timeline</a> </li> </ul> </li> <li id="pageTree_148155871" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/stisdhb/chapter-2-stis-data-structure">Chapter 2: STIS Data Structure</a> <ul id="pagetreelvl3"> <li id="pageTree_148155872" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-2-stis-data-structure/2-1-stis-overview">2.1 STIS Overview</a> </li> <li id="pageTree_148155873" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-2-stis-data-structure/2-2-types-of-stis-files">2.2 Types of STIS Files</a> </li> <li id="pageTree_148155874" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-2-stis-data-structure/2-3-stis-file-structures">2.3 STIS File Structures</a> </li> <li id="pageTree_148155878" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-2-stis-data-structure/2-4-headers-keywords-and-relationship-to-phase-ii">2.4 Headers, Keywords, and Relationship to Phase II</a> </li> <li id="pageTree_148155882" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-2-stis-data-structure/2-5-error-and-data-quality-array">2.5 Error and Data Quality Array</a> </li> <li id="pageTree_148155887" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-2-stis-data-structure/2-6-stis-coordinate-systems">2.6 STIS Coordinate Systems</a> </li> </ul> </li> <li id="pageTree_148155892" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/stisdhb/chapter-3-stis-calibration">Chapter 3: STIS Calibration</a> <ul id="pagetreelvl3"> <li id="pageTree_148155893" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-3-stis-calibration/3-1-pipeline-processing-overview">3.1 Pipeline Processing Overview</a> </li> <li id="pageTree_148155894" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-3-stis-calibration/3-2-structure-of-calstis">3.2 Structure of calstis</a> </li> <li id="pageTree_148155903" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-3-stis-calibration/3-3-data-flow-through-calstis">3.3 Data Flow Through calstis</a> </li> <li id="pageTree_148155919" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-3-stis-calibration/3-4-descriptions-of-calibration-steps">3.4 Descriptions of Calibration Steps</a> </li> <li id="pageTree_148155921" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-3-stis-calibration/3-5-recalibration-of-stis-data">3.5 Recalibration of STIS Data</a> </li> <li id="pageTree_148155922" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-3-stis-calibration/3-6-updates-to-calstis">3.6 Updates to calstis</a> </li> <li id="pageTree_148155923" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-3-stis-calibration/3-7-hubble-advanced-spectral-products-hasp">3.7 Hubble Advanced Spectral Products (HASP)</a> </li> </ul> </li> <li id="pageTree_148155924" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/stisdhb/chapter-4-stis-error-sources">Chapter 4: STIS Error Sources</a> <ul id="pagetreelvl3"> <li id="pageTree_148155925" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-4-stis-error-sources/4-1-error-sources-associated-with-pipeline-calibration-steps">4.1 Error Sources Associated with Pipeline Calibration Steps</a> </li> <li id="pageTree_148155930" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-4-stis-error-sources/4-2-summary-of-accuracies">4.2 Summary of Accuracies</a> </li> <li id="pageTree_148155934" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-4-stis-error-sources/4-3-factors-limiting-flux-and-wavelength-accuracy">4.3 Factors Limiting Flux and Wavelength Accuracy</a> </li> </ul> </li> <li id="pageTree_148155938" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/stisdhb/chapter-5-stis-data-analysis">Chapter 5: STIS Data Analysis</a> <ul id="pagetreelvl3"> <li id="pageTree_148155939" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-5-stis-data-analysis/5-1-data-reduction-and-analysis-applications">5.1 Data Reduction and Analysis Applications</a> </li> <li id="pageTree_148155947" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-5-stis-data-analysis/5-2-evaluating-target-acquisitions-and-guiding">5.2 Evaluating Target Acquisitions and Guiding</a> </li> <li id="pageTree_148155963" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-5-stis-data-analysis/5-3-working-with-imaging-data">5.3 Working with Imaging Data</a> </li> <li id="pageTree_148155966" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-5-stis-data-analysis/5-4-working-with-spectral-images">5.4 Working with Spectral Images</a> </li> <li id="pageTree_148155967" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-5-stis-data-analysis/5-5-working-with-extracted-spectra">5.5 Working with Extracted Spectra</a> </li> <li id="pageTree_148155971" class=""> <span class="no-children">•</span> <a href="/stisdhb/chapter-5-stis-data-analysis/5-6-working-with-time-tag-data">5.6 Working with TIME-TAG Data</a> </li> </ul> </li> <li id="pageTree_148155973" class=""> <span class="no-children">•</span> <a href="/stisdhb/change-log">Change Log</a> </li> </ul> </li> </ul> </div><p></p> </div> </div> </div> </section> </div> <div class="row reverse labels"> </div> </div> <div class="sidenav col-12 col-dt-4 col-lg-3"> <a href="" class="close-sidebar hidden-dt hidden-lg"><span class="aui-icon aui-icon-small aui-iconfont-cross">Close Menu</span></a> <div class="flex-column"> <div class="sidebar-box"> <div style="display: table; margin-bottom: 8px; table-layout: fixed; width: 100%;" class="conf-macro output-block" data-hasbody="true" 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class="pageTree"> <li id="pageTree_148639929" class="pageTreeRoot"> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp"> HST Proposal Opportunities and Science Policies </a> <ul id="pagetreelvl2"> <li id="pageTree_148639939" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33">Hubble Space Telescope Call for Proposals for Cycle 33</a> <ul id="pagetreelvl3"> <li id="pageTree_148639949" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-new-and-important-features">HST New and Important Features</a> </li> <li id="pageTree_148639950" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-proposal-checklist">HST Proposal Checklist</a> </li> <li id="pageTree_148639951" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-anonymous-proposal-reviews">HST Anonymous Proposal Reviews</a> </li> <li id="pageTree_148639953" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-general-information-resources-documentation-and-tools">HST General Information, Resources, Documentation, and Tools</a> </li> <li id="pageTree_148639954" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-proposal-submission-policies">HST Proposal Submission Policies</a> </li> <li id="pageTree_148639955" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-proposal-categories">HST Proposal Categories</a> </li> <li id="pageTree_148639958" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-special-initiatives">HST Special Initiatives</a> </li> <li id="pageTree_148639961" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-observation-types">HST Observation Types</a> </li> <li id="pageTree_148639963" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-data-rights-and-duplications">HST Data Rights and Duplications</a> </li> <li id="pageTree_148639964" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-proposal-selection-procedures">HST Proposal Selection Procedures</a> </li> <li id="pageTree_148639966" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-guidelines-and-checklist-for-phase-i-proposal-preparation">HST Guidelines and Checklist for Phase I Proposal Preparation</a> </li> <li id="pageTree_148639967" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-filling-out-the-apt-phase-i-proposal-form">HST Filling Out the APT Phase I Proposal Form</a> </li> <li id="pageTree_148639968" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-preparation-of-the-pdf-attachment">HST Preparation of the PDF Attachment</a> </li> <li id="pageTree_148639986" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-proposal-implementation-and-execution">HST Proposal Implementation and Execution</a> </li> <li id="pageTree_148639987" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/hst-grant-funding-and-budget-submissions">HST Grant Funding and Budget Submissions</a> </li> <li id="pageTree_148639990" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/appendix-a-contact-information">Appendix A: Contact Information</a> </li> <li id="pageTree_148639991" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/appendix-b-science-keywords">Appendix B: Science Keywords</a> </li> <li id="pageTree_148639992" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/appendix-c-glossary-of-acronyms-and-abbreviations">Appendix C: Glossary of Acronyms and Abbreviations</a> </li> <li id="pageTree_148639993" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-call-for-proposals-for-cycle-33/appendix-d-internet-links">Appendix D: Internet Links</a> </li> </ul> </li> <li id="pageTree_148639994" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33">The Hubble Space Telescope Primer for Cycle 33</a> <ul id="pagetreelvl3"> <li id="pageTree_148639995" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-resources-tools-and-other-documentation">HST Primer: Resources, Tools, and Other Documentation</a> </li> <li id="pageTree_148639996" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-system-overview">HST Primer: System Overview</a> </li> <li id="pageTree_148639999" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-orbital-constraints">HST Primer: Orbital Constraints</a> </li> <li id="pageTree_148640000" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-pointing-orientation-and-roll-constraints">HST Primer: Pointing, Orientation, and Roll Constraints</a> </li> <li id="pageTree_148640001" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-data-storage-and-transmission">HST Primer: Data Storage and Transmission</a> </li> <li id="pageTree_148640002" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-optical-performance-guiding-performance-and-observing-efficiency">HST Primer: Optical Performance, Guiding Performance, and Observing Efficiency</a> </li> <li id="pageTree_148640003" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-scientific-instruments-acs-wfc3-and-fgs">HST Primer: Scientific Instruments ACS, WFC3, and FGS</a> </li> <li id="pageTree_148640004" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-scientific-instrument-cos">HST Primer: Scientific Instrument COS</a> </li> <li id="pageTree_148640010" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-scientific-instrument-stis">HST Primer: Scientific Instrument STIS</a> </li> <li id="pageTree_148640011" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-additional-observing-modes">HST Primer: Additional Observing Modes</a> </li> <li id="pageTree_148640012" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-scientific-instrument-comparisons">HST Primer: Scientific Instrument Comparisons</a> </li> <li id="pageTree_148640019" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-observing-considerations">HST Primer: Observing Considerations</a> </li> <li id="pageTree_148640020" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-orbit-calculation-overview">HST Primer: Orbit Calculation Overview</a> </li> <li id="pageTree_148640021" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-orbital-visibility-acquisition-times-and-overheads">HST Primer: Orbital Visibility, Acquisition Times, and Overheads</a> </li> <li id="pageTree_148640022" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-orbit-calculation-examples">HST Primer: Orbit Calculation Examples</a> </li> <li id="pageTree_148640023" class=""> <span class="no-children">•</span> <a href="/hsp/the-hubble-space-telescope-primer-for-cycle-33/hst-primer-data-processing-and-the-hst-data-archive">HST Primer: Data Processing and the HST Data Archive</a> </li> </ul> </li> <li id="pageTree_148640024" class=""> <span class="no-children">•</span> <a href="/hsp/hst-phase-i-proposal-roadmap">HST Phase I Proposal Roadmap</a> </li> <li id="pageTree_148640028" class=""> <span class="no-children">•</span> <a href="/hsp/hst-phase-ii-proposal-roadmap">HST Phase II Proposal Roadmap</a> </li> <li id="pageTree_148640029" class=""> <span class="no-children">•</span> <a href="/hsp/hst-cycle-32-director-s-discretionary-time-submission">HST Cycle 32 Director's Discretionary Time Submission</a> </li> <li id="pageTree_148640030" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/hst-general-science-policies">HST General Science Policies</a> <ul id="pagetreelvl3"> <li id="pageTree_148640031" class=""> <span class="no-children">•</span> <a href="/hsp/hst-general-science-policies/targets-of-opportunity-and-director-s-discretionary-programs">Targets of Opportunity and Director's Discretionary Programs</a> </li> <li id="pageTree_148640032" class=""> <span class="no-children">•</span> <a href="/hsp/hst-general-science-policies/review-and-implementation-of-target-of-opportunity-and-directors-discretionary-time-observations">Review and Implementation of Target of Opportunity and Director’s Discretionary Time Observations</a> </li> <li id="pageTree_148640035" class=""> <span class="no-children">•</span> <a href="/hsp/hst-general-science-policies/telescope-time-review-board">Telescope Time Review Board</a> </li> <li id="pageTree_148640036" class=""> <span class="no-children">•</span> <a href="/hsp/hst-general-science-policies/hst-duplication-policy">HST Duplication Policy</a> </li> <li id="pageTree_148640037" class=""> <span class="no-children">•</span> <a href="/hsp/hst-general-science-policies/nasa-hubble-operational-paradigm-change-review-and-hubble-observations">NASA Hubble Operational Paradigm Change Review and Hubble Observations</a> </li> <li id="pageTree_148640038" class=""> <span class="no-children">•</span> <a href="/hsp/hst-general-science-policies/reduced-gyro-mode-tips-and-resources">Reduced Gyro Mode Tips and Resources</a> </li> </ul> </li> <li id="pageTree_148640039" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information">Hubble Space Telescope Science Policies Group and Peer Review Information</a> <ul id="pagetreelvl3"> <li id="pageTree_148640076" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/hst-peer-review-guide">HST Peer Review Guide</a> <ul id="pagetreelvl4"> <li id="pageTree_148640078" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/hst-peer-review-guide/discussion-panelists">Discussion Panelists</a> </li> <li id="pageTree_148640080" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/hst-peer-review-guide/external-panelists">External Panelists</a> </li> <li id="pageTree_148640082" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/hst-peer-review-guide/executive-committee-panelists">Executive Committee Panelists</a> </li> <li id="pageTree_148640085" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/hst-peer-review-guide/panel-support-scientists">Panel Support Scientists</a> </li> </ul> </li> <li id="pageTree_148640087" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/general-info-getting-started">General Info & Getting Started</a> <ul id="pagetreelvl4"> <li id="pageTree_148640089" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/general-info-getting-started/code-of-conduct">Code of Conduct</a> </li> <li id="pageTree_148640090" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/general-info-getting-started/confidentiality">Confidentiality</a> </li> <li id="pageTree_148640091" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/general-info-getting-started/conflicts-of-interest">Conflicts of Interest</a> </li> <li id="pageTree_148640093" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/general-info-getting-started/hubble-and-its-instruments">Hubble and its Instruments</a> </li> <li id="pageTree_148640107" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/general-info-getting-started/proposal-types-sizes-and-science-areas">Proposal Types, Sizes and Science Areas</a> </li> <li id="pageTree_148640109" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/general-info-getting-started/hst-duplication-policies-for-the-tac">HST Duplication Policies for the TAC</a> </li> <li id="pageTree_148640110" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/general-info-getting-started/tips-for-a-smooth-review">Tips for a Smooth Review</a> </li> <li id="pageTree_148640112" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/general-info-getting-started/who-to-contact-for-help">Who to Contact for Help</a> </li> <li id="pageTree_148640114" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/general-info-getting-started/orientation-materials">Orientation Materials</a> </li> </ul> </li> <li id="pageTree_148640171" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments">Reviews, Grades & Comments</a> <ul id="pagetreelvl4"> <li id="pageTree_148640173" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/spirit-webreviewer-tool-guide">SPIRIT WebReviewer Tool Guide</a> <ul id="pagetreelvl5"> <li id="pageTree_148640175" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/spirit-webreviewer-tool-guide/application-sign-in">Application Sign-In</a> </li> <li id="pageTree_148640178" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/spirit-webreviewer-tool-guide/viewing-panel-assignments-and-resources">Viewing Panel Assignments and Resources</a> </li> <li id="pageTree_148640186" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/spirit-webreviewer-tool-guide/navigating-and-viewing-panel-proposals">Navigating and Viewing Panel Proposals</a> </li> <li id="pageTree_148640192" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/spirit-webreviewer-tool-guide/grading-by-worksheet">Grading by Worksheet</a> </li> <li id="pageTree_148640195" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/spirit-webreviewer-tool-guide/entering-a-proposal-grade">Entering A Proposal Grade</a> </li> <li id="pageTree_148640198" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/spirit-webreviewer-tool-guide/entering-a-proposal-review">Entering A Proposal Review</a> </li> <li id="pageTree_148640203" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/spirit-webreviewer-tool-guide/entering-private-notes">Entering Private Notes</a> </li> <li id="pageTree_148640206" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/spirit-webreviewer-tool-guide/entering-shared-remarks">Entering Shared Remarks</a> </li> <li id="pageTree_148640210" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/spirit-webreviewer-tool-guide/submitting-a-final-review">Submitting A Final Review</a> </li> <li id="pageTree_148640214" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/spirit-webreviewer-tool-guide/viewing-final-ranking">Viewing Final Ranking</a> </li> <li id="pageTree_148640218" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/spirit-webreviewer-tool-guide/viewing-spirit-notifications">Viewing SPIRIT Notifications</a> </li> </ul> </li> <li id="pageTree_148640226" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/dual-anonymous-proposals-guide-for-reviewers">Dual Anonymous Proposals Guide for Reviewers</a> </li> <li id="pageTree_148640227" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/selection-criteria-and-scoring-system">Selection Criteria and Scoring System</a> </li> <li id="pageTree_148640229" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/reviews-grades-comments/proposal-feedback-comments">Proposal Feedback Comments</a> </li> </ul> </li> <li id="pageTree_148640230" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/panel-meetings">Panel Meetings</a> <ul id="pagetreelvl4"> <li id="pageTree_148640232" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/panel-meetings/webex-and-slack-guidelines">Webex and Slack Guidelines</a> </li> <li id="pageTree_148640234" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/panel-meetings/primary-secondary-reviewers-graders">Primary / Secondary Reviewers & Graders</a> </li> <li id="pageTree_148640235" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/panel-meetings/triage-process-discussion-list">Triage Process & Discussion List</a> </li> <li id="pageTree_148640237" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/panel-meetings/preparing-for-the-panel-meeting">Preparing for the Panel Meeting</a> </li> <li id="pageTree_148640238" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/panel-meetings/guidelines-for-panel-chairs-and-vice-chairs">Guidelines for Panel Chairs and Vice Chairs</a> </li> <li id="pageTree_148640240" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/panel-meetings/virtual-panel-meetings">Virtual Panel Meetings</a> </li> <li id="pageTree_148640241" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/panel-meetings/final-ranking">Final Ranking</a> </li> <li id="pageTree_148640246" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/panel-meetings/large-treasury-legacy-proposals">Large, Treasury, & Legacy Proposals</a> </li> <li id="pageTree_148640247" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/panel-meetings/executive-committee">Executive Committee</a> </li> <li id="pageTree_148640248" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/panel-meetings/executive-committee-expert-reviews">Executive Committee Expert Reviews</a> </li> </ul> </li> <li id="pageTree_148640249" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/stsci-staff">STScI Staff</a> <ul id="pagetreelvl4"> <li id="pageTree_148640250" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/stsci-staff/role-of-panel-support-scientists">Role of Panel Support Scientists</a> </li> <li id="pageTree_148640251" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/stsci-staff/role-of-levelers">Role of Levelers</a> </li> <li id="pageTree_148640252" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/stsci-staff/panel-advisors-and-observers">Panel Advisors and Observers</a> </li> <li id="pageTree_148640253" class=""> <span class="no-children">•</span> <a href="/hsp/hubble-space-telescope-science-policies-group-and-peer-review-information/stsci-staff/science-policies-group-spg-members">Science Policies Group (SPG) Members</a> </li> </ul> </li> </ul> </li> <li id="pageTree_148640254" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/past-hst-proposal-opportunities">Past HST Proposal Opportunities</a> <ul id="pagetreelvl3"> <li id="pageTree_148640258" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hst-cycle-31-mid-cycle-time-submission">HST Cycle 31 Mid-Cycle Time Submission</a> </li> <li id="pageTree_148640259" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27">Hubble Space Telescope Call for Proposals for Cycle 27</a> <ul id="pagetreelvl4"> <li id="pageTree_148640261" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-new-and-important-features">HST Cycle 27 New and Important Features</a> </li> <li id="pageTree_148640262" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-anonymous-proposal-reviews">HST Cycle 27 Anonymous Proposal Reviews</a> </li> <li id="pageTree_148640263" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-general-information-resources-documentation-and-tools">HST Cycle 27 General Information, Resources, Documentation, and Tools</a> </li> <li id="pageTree_148640264" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-proposal-submission-policies">HST Cycle 27 Proposal Submission Policies</a> </li> <li id="pageTree_148640265" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-proposal-categories">HST Cycle 27 Proposal Categories</a> </li> <li id="pageTree_148640268" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-special-initiatives">HST Cycle 27 Special Initiatives</a> </li> <li id="pageTree_148640270" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-observation-types-and-special-requirements">HST Cycle 27 Observation Types and Special Requirements</a> </li> <li id="pageTree_148640271" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-data-rights-and-duplications">HST Cycle 27 Data Rights and Duplications</a> </li> <li id="pageTree_148640272" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-proposal-selection-procedures">HST Cycle 27 Proposal Selection Procedures</a> </li> <li id="pageTree_148640274" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-guidelines-and-checklist-for-phase-i-proposal-preparation">HST Cycle 27 Guidelines and Checklist for Phase I Proposal Preparation</a> </li> <li id="pageTree_148640275" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-filling-out-the-apt-proposal-form">HST Cycle 27 Filling Out the APT Proposal Form</a> </li> <li id="pageTree_148640276" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-preparation-of-the-pdf-attachment">HST Cycle 27 Preparation of the PDF Attachment</a> </li> <li id="pageTree_148640290" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-proposal-implementation-and-execution">HST Cycle 27 Proposal Implementation and Execution</a> </li> <li id="pageTree_148640291" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-grant-funding-and-budget-submissions">HST Cycle 27 Grant Funding and Budget Submissions</a> </li> <li id="pageTree_148640294" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-appendix-a-contact-information">HST Cycle 27 Appendix A: Contact Information</a> </li> <li id="pageTree_148640295" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-appendix-b-scientific-keywords">HST Cycle 27 Appendix B: Scientific Keywords</a> </li> <li id="pageTree_148640296" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-appendix-c-glossary-of-acronyms-and-abbreviations">HST Cycle 27 Appendix C: Glossary of Acronyms and Abbreviations</a> </li> <li id="pageTree_148640297" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-appendix-d-internet-links">HST Cycle 27 Appendix D: Internet Links</a> </li> <li id="pageTree_148640298" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-27/hst-cycle-27-mid-cycle-time-submission">HST Cycle 27 Mid-Cycle Time Submission</a> </li> </ul> </li> <li id="pageTree_148640299" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27">The Hubble Space Telescope Primer for Cycle 27</a> <ul id="pagetreelvl4"> <li id="pageTree_148640300" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-resources-tools-and-other-documentation">HST Cycle 27 Primer Resources, Tools, and Other Documentation</a> </li> <li id="pageTree_148640301" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-system-overview">HST Cycle 27 Primer System Overview</a> </li> <li id="pageTree_148640304" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-orbital-constraints">HST Cycle 27 Primer Orbital Constraints</a> </li> <li id="pageTree_148640305" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-pointing-orientation-and-roll-constraints">HST Cycle 27 Primer Pointing, Orientation, and Roll Constraints</a> </li> <li id="pageTree_148640306" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-data-storage-and-transmission">HST Cycle 27 Primer Data Storage and Transmission</a> </li> <li id="pageTree_148640307" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-optical-performance-guiding-performance-and-observing-efficiency">HST Cycle 27 Primer Optical Performance, Guiding Performance, and Observing Efficiency</a> </li> <li id="pageTree_148640308" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-scientific-instruments-acs-wfc3-and-fgs">HST Cycle 27 Primer Scientific Instruments ACS, WFC3, and FGS</a> </li> <li id="pageTree_148640309" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-scientific-instrument-cos">HST Cycle 27 Primer Scientific Instrument COS</a> </li> <li id="pageTree_148640314" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-scientific-instrument-stis">HST Cycle 27 Primer Scientific Instrument STIS</a> </li> <li id="pageTree_148640315" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-additional-observing-modes">HST Cycle 27 Primer Additional Observing Modes</a> </li> <li id="pageTree_148640316" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-scientific-instrument-comparisons">HST Cycle 27 Primer Scientific Instrument Comparisons</a> </li> <li id="pageTree_148640323" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-observing-considerations">HST Cycle 27 Primer Observing Considerations</a> </li> <li id="pageTree_148640324" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-orbit-calculation-overview">HST Cycle 27 Primer Orbit Calculation Overview</a> </li> <li id="pageTree_148640325" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-orbital-visibility-acquisition-times-and-overheads">HST Cycle 27 Primer Orbital Visibility, Acquisition Times, and Overheads</a> </li> <li id="pageTree_148640326" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-orbit-calculation-examples">HST Cycle 27 Primer Orbit Calculation Examples</a> </li> <li id="pageTree_148640327" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-27/hst-cycle-27-primer-data-processing-and-the-hst-data-archive">HST Cycle 27 Primer Data Processing and the HST Data Archive</a> </li> </ul> </li> <li id="pageTree_148640328" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26">Hubble Space Telescope Call for Proposals for Cycle 26</a> <ul id="pagetreelvl4"> <li id="pageTree_148640329" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-new-and-important-features">HST Cycle 26 New and Important Features</a> </li> <li id="pageTree_148640330" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-anonymous-proposal-reviews">HST Cycle 26 Anonymous Proposal Reviews</a> </li> <li id="pageTree_148640331" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-general-information-resources-documentation-and-tools">HST Cycle 26 General Information, Resources, Documentation, and Tools</a> </li> <li id="pageTree_148640332" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-proposal-submission-policies">HST Cycle 26 Proposal Submission Policies</a> </li> <li id="pageTree_148640333" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-proposal-categories">HST Cycle 26 Proposal Categories</a> </li> <li id="pageTree_148640335" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-special-initiatives">HST Cycle 26 Special Initiatives</a> </li> <li id="pageTree_148640337" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-observation-types-and-special-requirements">HST Cycle 26 Observation Types and Special Requirements</a> </li> <li id="pageTree_148640338" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-data-rights-and-duplications">HST Cycle 26 Data Rights and Duplications</a> </li> <li id="pageTree_148640339" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-proposal-selection-procedures">HST Cycle 26 Proposal Selection Procedures</a> </li> <li id="pageTree_148640341" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-guidelines-and-checklist-for-phase-i-proposal-preparation">HST Cycle 26 Guidelines and Checklist for Phase I Proposal Preparation</a> </li> <li id="pageTree_148640342" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-filling-out-the-apt-proposal-form">HST Cycle 26 Filling Out the APT Proposal Form</a> </li> <li id="pageTree_148640343" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-preparation-of-the-pdf-attachment">HST Cycle 26 Preparation of the PDF Attachment</a> </li> <li id="pageTree_148640357" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-proposal-implementation-and-execution">HST Cycle 26 Proposal Implementation and Execution</a> </li> <li id="pageTree_148640358" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-grant-funding-and-budget-submissions">HST Cycle 26 Grant Funding and Budget Submissions</a> </li> <li id="pageTree_148640360" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-appendix-a-contact-information">HST Cycle 26 Appendix A: Contact Information</a> </li> <li id="pageTree_148640361" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-appendix-b-scientific-keywords">HST Cycle 26 Appendix B: Scientific Keywords</a> </li> <li id="pageTree_148640362" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-appendix-c-glossary-of-acronyms-and-abbreviations">HST Cycle 26 Appendix C: Glossary of Acronyms and Abbreviations</a> </li> <li id="pageTree_148640363" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/hubble-space-telescope-call-for-proposals-for-cycle-26/hst-cycle-26-appendix-d-internet-links">HST Cycle 26 Appendix D: Internet Links</a> </li> </ul> </li> <li id="pageTree_148640364" class=""> <a class="toggleChildren aui-icon aui-icon-small aui-iconfont-chevron-right" href=""></a> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26">The Hubble Space Telescope Primer for Cycle 26</a> <ul id="pagetreelvl4"> <li id="pageTree_148640365" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-resources-tools-and-other-documentation">HST Cycle 26 Primer Resources, Tools, and Other Documentation</a> </li> <li id="pageTree_148640366" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-system-overview">HST Cycle 26 Primer System Overview</a> </li> <li id="pageTree_148640369" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-orbital-constraints">HST Cycle 26 Primer Orbital Constraints</a> </li> <li id="pageTree_148640370" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-pointing-orientation-and-roll-constraints">HST Cycle 26 Primer Pointing, Orientation, and Roll Constraints</a> </li> <li id="pageTree_148640371" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-data-storage-and-transmission">HST Cycle 26 Primer Data Storage and Transmission</a> </li> <li id="pageTree_148640372" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-optical-performance-guiding-performance-and-observing-efficiency">HST Cycle 26 Primer Optical Performance, Guiding Performance, and Observing Efficiency</a> </li> <li id="pageTree_148640373" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-scientific-instruments-acs-wfc3-and-fgs">HST Cycle 26 Primer Scientific Instruments ACS, WFC3, and FGS</a> </li> <li id="pageTree_148640374" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-scientific-instrument-cos">HST Cycle 26 Primer Scientific Instrument COS</a> </li> <li id="pageTree_148640379" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-scientific-instrument-stis">HST Cycle 26 Primer Scientific Instrument STIS</a> </li> <li id="pageTree_148640380" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-additional-observing-modes">HST Cycle 26 Primer Additional Observing Modes</a> </li> <li id="pageTree_148640381" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-scientific-instrument-comparisons">HST Cycle 26 Primer Scientific Instrument Comparisons</a> </li> <li id="pageTree_148640388" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-observing-considerations">HST Cycle 26 Primer Observing Considerations</a> </li> <li id="pageTree_148640389" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-orbit-calculation-overview">HST Cycle 26 Primer Orbit Calculation Overview</a> </li> <li id="pageTree_148640390" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-orbital-visibility-acquisition-times-and-overheads">HST Cycle 26 Primer Orbital Visibility, Acquisition Times, and Overheads</a> </li> <li id="pageTree_148640391" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-orbit-calculation-examples">HST Cycle 26 Primer Orbit Calculation Examples</a> </li> <li id="pageTree_148640392" class=""> <span class="no-children">•</span> <a href="/hsp/past-hst-proposal-opportunities/the-hubble-space-telescope-primer-for-cycle-26/hst-cycle-26-primer-data-processing-and-the-hst-data-archive">HST Cycle 26 Primer Data Processing and the HST Data Archive</a> </li> </ul> </li> </ul> </li> <li id="pageTree_148640393" class=""> <span class="no-children">•</span> <a href="/hsp/hst-mid-cycle-approved-programs">HST Mid-Cycle Approved Programs</a> </li> <li id="pageTree_148640394" class=""> <span class="no-children">•</span> <a href="/hsp/call-for-cycle-32-bridge-programs">Call for Cycle 32 Bridge Programs</a> </li> </ul> 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