FAQ | SPACEWATCH庐

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block-system block-system-breadcrumb-block"> <div class="content"> <nav role="navigation" aria-label="breadcrumb"> <ol class="breadcrumb"> <li class="breadcrumb-item breadcrumb-item-home"> <a href="/">Home</a> </li> <li class="breadcrumb-item active" aria-current="page"> FAQ </li> </ol> </nav> </div> </div> </section> </div> </div> <div class="container"> <div class="row row-offcanvas row-offcanvas-left clearfix"> <main class="main-content col" id="content" role="main"> <section class="region region-content"> <div id="block-lpl-barrio-page-title" class="block block-core block-page-title-block"> <div class="content"> <h1 class="title">FAQ</h1> </div> </div> <div id="block-lpl-barrio-ua-zen-lpl-system-main" class="block block-system block-system-main-block"> <div class="content"> <div class="views-element-container"><div class="view view-faq view-id-faq view-display-id-page_faq js-view-dom-id-68fa10fd11a1eb3f99885b2ebb74f6b6c2a971fd44be3d6a2d214d7fcfb6c365"> <div class="view-content"> <div id="views-bootstrap-faq-page-faq" class="accordion"> <div class="card mb-1"> <div class="card-header" id="heading0"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-0" aria-expanded="false" aria-controls="collapseOne"> What software do you recommend for detecting moving objects in images? And, can we obtain SPACEWATCH庐's own software? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-0" class="collapse" aria-labelledby="heading0" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>SPACEWATCH庐 software was written for our project, and will only work with our detectors and computers; thus, we do not make it available.</p> <p>But, there are many commercially-available software packages to choose from; these evolve rapidly, so this is a good question to pose to one of the active on-line discussion groups of amateurs and professionals devoted to the detection of minor planets, e. g., the Minor Planet Mailing List (MPML).</p> </div></div><div class="text-end text-right"><span><a href="/faq/what-software-do-you-recommend-detecting-moving-objects-images-and-can-we-obtain-spacewatch%C2%AEs" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading1"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-1" aria-expanded="false" aria-controls="collapseOne"> I saw something moving across the sky last night! What was it? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-1" class="collapse" aria-labelledby="heading1" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>What you saw could have been one of three (or more) things, depending on its duration and apparent speed. Most likely, what you saw was a fireball, or a very bright meteor (shooting star). Usually, fireballs streak across the sky in a matter of seconds, but can leave a faint ionization trail visible for minutes. They can be as bright as the Moon sometimes. On the other hand, it could have been a satellite in orbit around the Earth. They are much slower moving and relatively constant in brightness. Many satellites are visible after sunset and before sunrise, as this is the time when they are reflecting sunlight but it is still dark on the surface of the Earth. Also, some satellites can flare up for a few seconds and become very bright when their solar panels reflect the sunlight. Finally, what you saw could have been a rocket launch or re-entry in your local area. These launches are sometimes visible for hundreds of miles, and generate a lot of curiosity!</p> <p>If you wish to report a very bright meteor or fireball, do not report it to SPACEWATCH庐: once an object has entered the earth's atmosphere, it is no longer available for our telescopes to study. Instead, there are two organizations which would like to have your report, and each of them has an on-line means by which you can report your sighting easily. It is important to report your sighting quickly, because your report can sometimes help in the location and recovery of solid pieces of the meteoritic body which entered the atmosphere. The two organizations are the "American Meteor Society", and the "International Meteor Organization". To <i><b>report your sightings</b></i>, please use the links below:</p> <blockquote class="blockquote"><a href="http://www.amsmeteors.org/fireball/report.html" target="new">American Meteor Society -- Fireball Report Form</a> <p><a href="http://www.imo.net/fireball/report" target="new">International Meteor Organization -- Fireball Report Form</a></p> </blockquote> <p>For <b><i>general information</i></b> from these two organizations about Meteors and Fireballs, please see:</p> <blockquote class="blockquote"><a href="http://www.amsmeteors.org/" target="new">American Meteor Society</a> <p><a href="http://www.imo.net/" target="new">International Meteor Organization</a></p> </blockquote> </div></div><div class="text-end text-right"><span><a href="/faq/i-saw-something-moving-across-sky-last-night-what-was-it" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading2"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-2" aria-expanded="false" aria-controls="collapseOne"> I sometimes see artificial earth satellites moving across the sky at night. Where is a good place to find out more about satellites and satellite tracking? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-2" class="collapse" aria-labelledby="heading2" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>A few good websites include:</p> <blockquote class="blockquote"><a href="http://www.heavens-above.com" target="new">Heavens-Above</a> <p><a href="http://www.n2yo.com" target="new">N2YO</a></p> </blockquote> </div></div><div class="text-end text-right"><span><a href="/faq/i-sometimes-see-artificial-earth-satellites-moving-across-sky-night-where-good-place-find-out" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading3"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-3" aria-expanded="false" aria-controls="collapseOne"> We are a TV/movie/media production unit and would like to shoot video/film of the SPACEWATCH庐 telescope in operation on Kitt Peak. May we do so, under what conditions, and when? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-3" class="collapse" aria-labelledby="heading3" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>For many reasons, SPACEWATCH庐 no longer hosts camera crews at the telescope.</p> <p>You may preview selected videos online at our <a href="/videos">SPACEWATCH庐 Videos</a> website.</p> <p>Thank you for your understanding!</p> </div></div><div class="text-end text-right"><span><a href="/faq/we-are-tvmoviemedia-production-unit-and-would-shoot-videofilm-spacewatch-telescope-operation" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading4"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-4" aria-expanded="false" aria-controls="collapseOne"> I've heard that there was a new threatening object discovered. Is it a danger to us? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-4" class="collapse" aria-labelledby="heading4" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>The latest news about close passes of asteroids and comets by the earth can often be found at the astronomy magazine online sites, and the NASA Solar System Exploration site, which are updated very frequently. These are often the best, most reliable, and easiest to access sources of information on fast-breaking, important, news stories in Astronomy. We can recommend:</p> <blockquote class="blockquote">Sky & Telescope Magazine - A popular astronomy magazine online site; current events in the sky, and news items about Astronomy. <br> <a href="http://www.astronomy.com/" target="new">Astronomy Magazine</a> - Another popular astronomy magazine online site; current events in the sky, news items about Astronomy. <p><a href="https://cneos.jpl.nasa.gov/sentry/" target="new">NASA/JPL Impact Risk Page</a> - NASA/JPL Impact Risk Tabulation.</p> </blockquote> </div></div><div class="text-end text-right"><span><a href="/faq/ive-heard-there-was-new-threatening-object-discovered-it-danger-us" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading5"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-5" aria-expanded="false" aria-controls="collapseOne"> Are there any known asteroids predicted to impact the Earth? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-5" class="collapse" aria-labelledby="heading5" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>This is probably the most commonly asked question! While SPACEWATCH庐 discovers and tracks asteroids, we do not calculate impact probabilities. That is the job of other institutions (Minor Planet Center, <a href="http://neo.jpl.nasa.gov/" target="new">JPL NEO Office</a>, and NEODyS). Currently, there are no known asteroids or comets that are on a collision course with the Earth in the predictable future. There are several potentially hazardous asteroids that have orbits which could make them dangerous sometime in the future. However, currently none of these objects poses a danger much above the background chance that the Earth is hit by something not yet discovered. You can check the close approach distances of all known Potentially Hazardous Asteroids (PHAs) on the Minor Planet Center's "PHA Close Approaches To The Earth" page.</p> <p>Throughout Earth's history, we have been bombarded by comets and asteroids from space. Impacts have happened before, and they will happen again. It is just a matter of when. This is one of the main goals of SPACEWATCH庐, to look for the potentially dangerous objects well before they pose a threat.</p> </div></div><div class="text-end text-right"><span><a href="/faq/are-there-any-known-asteroids-predicted-impact-earth" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading6"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-6" aria-expanded="false" aria-controls="collapseOne"> What is drift scanning? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-6" class="collapse" aria-labelledby="heading6" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>SPACEWATCH庐 pioneered the use of "Drift-Scanning" with CCD's as a way to maximize the amount of data they could collect with their telescope. Stars and asteroids, just like the Sun and Moon, are affected by the Earth's rotation. They rise in the East, move overhead, and set in the West over the course of a day. Most telescopes will move to whatever target they wish to observe, use the telescope's motors to follow the target, take a picture with a CCD and then read the picture out so it can be examined. The problem with this method was that for most CCD's in the 20th century the read time was longer than the exposure time and so only half (or even less) of the wall clock time was spent actually observing the night sky.</p> <p>SPACEWATCH庐, under Tom Gehrels, pioneered an alternate way to use a CCD camera that avoids this problem. Instead of going to the target of interest you lead it a little bit on the sky then you shut the telescope drive off. The stars start to move ("drift") across the CCD. If you exposed the CCD and then read it off they would appear trailed along the direction of the sky's motion since you didn't use motors to track them. However, Tom lined up the CCD with the sky and then started the CCD reading at exactly the rate at which the sky was moving. The stars therefore appeared round and the resulting picture was really long without any read time wasted. You didn't get something for nothing, however, since the first bit of the data (the "ramp frame") was hard to use and the exposure time was fixed for the instrument. Drift scanning was a solution to SPACEWATCH庐's survey needs between 1984 and 2011.  Nowadays our CCD imagers read out rapidly and we no longer need to use drift scanning. </p> </div></div><div class="text-end text-right"><span><a href="/faq/what-drift-scanning" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading7"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-7" aria-expanded="false" aria-controls="collapseOne"> Why don't you raise funds by offering to name the asteroids you discover after people who send you money? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-7" class="collapse" aria-labelledby="heading7" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>The only organization with internationally-recognized authority to name asteroids is the Committee on Small Bodies Nomenclature (CSBN) of the International Astronomical Union (IAU). We Spacewatchers, as members of the IAU, subscribe to and recognize that authority. In the case of asteroids with orbits good enough to receive permanent numbers from the IAU's Minor Planet Center (MPC), names may be suggested by the discoverers. Suggested names are reviewed by the CSBN and the approved names are announced periodically by the IAU. A description of how objects are named can be found in:</p> <blockquote class="blockquote"><a href="http://www.iau.org/static/public/naming/planets_and_satellites.pdf" target="new">Public Naming of Planets and Planetary Satellites (PDF)</a> </blockquote> <p>While it is true that SPACEWATCH庐 DETECTS hundreds of asteroids per observing night, detections on single nights are inadequate to establish accurate orbital elements. That accomplishment requires many more observations spanning years. So only asteroids that are repeatedly re-observed (deliberately or serendipitously) finally receive permanent numbers. Amateur astronomers regularly observe asteroids, and their work is extremely valuable in increasing the accuracy with which asteroid orbits are known.</p> <p>As of 2000 Sept. 12, SPACEWATCH庐 had been credited with 231 asteroids that had advanced to the stage of receiving permanent numbers from the MPC. SPACEWATCH庐 has suggested and received approval on the names of several asteroids. These names are usually selected from among our scientific colleagues, especially those who have worked in the discipline of asteroid science. Nevertheless, we, as discoverers, do not have direct naming rights, and must be careful not to PROMISE in advance that the IAU will name an asteroid after any specific person, because every nomination is voted on case-by-case by the members of the CSBN.</p> <p>This constraint is not an explicit prohibition against naming asteroids after generous philanthropists, but before any observers start offering asteroid names for money, the search community should agree upon some ground rules so that different groups will not start competing with each other for the "price" of an asteroid name. That kind of auctioneering of the process of naming celestial objects might discourage the IAU from cooperating.</p> <p>One could also get into complications like what type of asteroid is being "purchased". Asteroids have to have very well-determined orbits before the IAU will name them. It is a great deal more work to establish orbits of some classes of asteroids than others. How are we to take into account in the "price" the number of observations, the span of years needed to establish a numberable orbit, the observers other than the original discoverer who made vital recoveries of the object before its orbit was accurately known, and the computational creativity of the MPC in linking observations of the same object made many years apart?</p> <p>Offering names that are NOT endorsed by the IAU would not be fair to the "customers". For background on this issue by analogy with star names, see</p> <blockquote class="blockquote"><a href="http://www.iau.org/public_press/themes/buying_star_names/" target="new">Buying Stars and Star Names</a> </blockquote> <p>The implications of naming asteroids after contributors on the tax-deductible status of their contributions has not been addressed here, because we are not lawyers.</p> <p>This is a complicated issue, and that is one reason SPACEWATCH庐 has not been selling asteroid names.</p> </div></div><div class="text-end text-right"><span><a href="/faq/why-dont-you-raise-funds-offering-name-asteroids-you-discover-after-people-who-send-you-money" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading8"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-8" aria-expanded="false" aria-controls="collapseOne"> Do you have high-resolution images available? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-8" class="collapse" aria-labelledby="heading8" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>The images on this website have been optimized for viewing over the internet, in terms of image size and file size. Most color photographs are stored in JPEG format, allowing for true color and fast downloads. Many of the CCD images of asteroids and comets are stored in GIF format, to better represent the quality of the original. Our images of asteroids appear 'grainy' because the image displayed is only a small, magnified cropping from the original CCD image. They were magnified to make the asteroid's movement easier to see, but no pixel information was lost. So the images of asteroids on the web page are as high resolution as they can get.</p> </div></div><div class="text-end text-right"><span><a href="/faq/do-you-have-high-resolution-images-available" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading9"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-9" aria-expanded="false" aria-controls="collapseOne"> May I(we) use some of the pictures on your web page in my(our) book/article/show/web page? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-9" class="collapse" aria-labelledby="heading9" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>All SPACEWATCH庐 material, unless otherwise credited, is copyrighted by the Arizona Board of Regents, with which all rights are reserved. No part of SPACEWATCH庐 material may be copied, reproduced or transmitted in any form without written permission in advance from:</p> <blockquote class="blockquote">Dr. Melissa J. Brucker, PhD<br> Principal Investigator, SPACEWATCH庐 Project <br> Lunar and Planetary Laboratory <br> Kuiper Space Sciences Building <br> 1629 East University Blvd. <br> The University of Arizona <br> Tucson, AZ 85721 <br> <br> Email: mbrucker (at) lpl.arizona.edu</blockquote> </div></div><div class="text-end text-right"><span><a href="/faq/may-iwe-use-some-pictures-your-web-page-myour-bookarticleshowweb-page" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading10"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-10" aria-expanded="false" aria-controls="collapseOne"> I am a student/pupil doing a report/assignment/project/paper on asteroids/comets/impact hazard and have some questions, the answers to which would help me. </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-10" class="collapse" aria-labelledby="heading10" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>We are glad to hear of your interest in our work. Please try to learn as much as you can from our publications, our web site, and the other sites to which our site links before requesting personal help. When you finally do have questions that aren't answered by our papers, it helps us if you tell us how much you already know about the subject and what you have already done to find the answers you seek. That is the most educational way to do research for school, and it helps us to write answers at your educational level.</p> </div></div><div class="text-end text-right"><span><a href="/faq/i-am-studentpupil-doing-reportassignmentprojectpaper-asteroidscometsimpact-hazard-and-have-some" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading11"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-11" aria-expanded="false" aria-controls="collapseOne"> Do you have a job in the SPACEWATCH庐 Project for me? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-11" class="collapse" aria-labelledby="heading11" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>All positions for staff, faculty, and graduate assistantships in the SPACEWATCH庐 Project would be advertised on this web page by means of a link to the official advertisement on the University of Arizona Human Resources web site. If no "Job Available" link is present on the main SPACEWATCH庐 page, that means there are no openings at the present time. If there is a "Job Available" link, please follow the procedure for application that is described in the ad.</p> </div></div><div class="text-end text-right"><span><a href="/faq/do-you-have-job-spacewatch%C2%AE-project-me" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading12"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-12" aria-expanded="false" aria-controls="collapseOne"> I would like to do unpaid volunteer work for the SPACEWATCH庐 Project. </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-12" class="collapse" aria-labelledby="heading12" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>Thank you for your interest! SPACEWATCH庐 does not regularly seek nor do we regularly employ volunteer workers. An important way of helping our work, however, and of advancing the NEO field generally, would be for citizens such as yourself to express to your Senators and Representatives your appreciation of the importance of NEO work. SPACEWATCH庐 is a major planetary resource in the effort to discover and monitor NEOs which could pose a hazard to the Earth by colliding, or which can become mineral resources in future by being mined while orbiting the sun. When you write, phone, email, or FAX your Senators and Representatives (or all of the above!) to encourage them to fund NEO research, you will be helping SPACEWATCH庐 and the entire NEO field, as well as Solar System Science in general. Very few of our elected representatives are scientists, and they need to know that they have their constituents's support in advocating for scientific research and for NEO research in particular. Thank you for this very important and valuable support.</p> </div></div><div class="text-end text-right"><span><a href="/faq/i-would-do-unpaid-volunteer-work-spacewatch%C2%AE-project" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading13"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-13" aria-expanded="false" aria-controls="collapseOne"> I've heard of "SETI@home" and "Galaxy Zoo". Is there a similar program with SPACEWATCH庐? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-13" class="collapse" aria-labelledby="heading13" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>Try going to this site:  <a href="https://www.zooniverse.org/projects/fulsdavid/the-daily-minor-planet">https://www.zooniverse.org/projects/fulsdavid/the-daily-minor-planet</a> to volunteer to look for asteroids.  It is run by the Catalina Sky Survey <a href="https://catalina.lpl.arizona.edu/">https://catalina.lpl.arizona.edu/</a> at the University of Arizona's Lunar and Planetary Laboratory.</p> <p>In 2003, SPACEWATCH庐 started the "FMO Project" courtesy of funding from the Paul G. Allen Charitable Foundation. This effort ended successfully and fruitfully in Spring of 2006. To read about the project and to see the results, you may access our FMO Project webpage through <a href="https://spacewatch.lpl.arizona.edu/fmo" target="new">FMO Project</a>  and <a href="https://spacewatch.lpl.arizona.edu/fmo-discoveries-and-recoveries">https://spacewatch.lpl.arizona.edu/fmo-discoveries-and-recoveries  </a>and  <a href="https://ui.adsabs.harvard.edu/abs/2005MPBu...32...53M/abstract">https://ui.adsabs.harvard.edu/abs/2005MPBu...32...53M/abstract</a> .</p> </div></div><div class="text-end text-right"><span><a href="/faq/ive-heard-setihome-there-similar-program-spacewatch%C2%AE" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading14"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-14" aria-expanded="false" aria-controls="collapseOne"> Where can I get information on a particular asteroid? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-14" class="collapse" aria-labelledby="heading14" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>Try the <a href="https://www.minorplanetcenter.net/iau/mpc.html" target="new">Minor Planet Center</a> website.</p> </div></div><div class="text-end text-right"><span><a href="/faq/where-can-i-get-information-particular-asteroid" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading15"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-15" aria-expanded="false" aria-controls="collapseOne"> I heard the planets are going to be in a conjunction and that the alignment will cause massive earthquakes and flooding. Is this true? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-15" class="collapse" aria-labelledby="heading15" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>Each planet in the solar system exerts some force on the Earth, however small that force may be. Most of it comes from the sun and the moon. For example, the moon is the primary reason we have tides. As you may know, twice per month there is a higher than usual tide. This occurs when the sun and the moon are lined up and acting to "tug" at the Earth in the same direction -- causing more pronounced tides. No other planets contribute to the Earth's tides because they are very far away, and gravitational force varies inversely with the square of the distance. Even if all other planets were to line up, the combined magnitude of their gravity would be insignificant compared to that of the sun and moon. It wouldn't even be detectable! So, in short, if there is a planetary conjunction in the sky, go out and watch it in comfort and with appreciation. For more "coverage", please see the popular astronomy magazines or their websites.</p> </div></div><div class="text-end text-right"><span><a href="/faq/i-heard-planets-are-going-be-conjunction-and-alignment-will-cause-massive-earthquakes-and" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading16"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-16" aria-expanded="false" aria-controls="collapseOne"> What kind of space object tracking software is there out there? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-16" class="collapse" aria-labelledby="heading16" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>There are several flavors of space object tracking software available on the internet - some free and others that cost some money. If you are looking for software that will show an object's position (RA and Dec) in the sky, there are numerous planetarium programs that do that. There are also programs that give a "space view" of the solar system from anywhere in the solar system. Here are a few sites worth checking out that may be of help:</p> <p>The Minor Planet Center <br> Near Earth Objects Dynamics Site <br> JPL Horizons</p> <p>Also, search the web for "astronomy software" for more information on programs that are available.</p> </div></div><div class="text-end text-right"><span><a href="/faq/what-kind-space-object-tracking-software-there-out-there" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading17"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-17" aria-expanded="false" aria-controls="collapseOne"> What books are available on the topics of asteroids and the impact hazard? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-17" class="collapse" aria-labelledby="heading17" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><ul> <li><i>The End of the Dinosaurs,</i> by Charles Frankel, Cambridge Univ. Press, 1999.</li> <li><i>Rain of Iron and Ice,</i> by John Lewis, Addison-Wesley, 1996.</li> <li><i>Mining the Sky,</i> by John Lewis, Addison-Wesley, 1996.</li> <li><i>Comet and Asteroid Impacts on a Populated Earth,</i> by John Lewis, Academic Press, 2000.</li> <li><i>Comets, Creators and Destroyers,</i>by David Levy, Touchstone (a division of Simon & Schuster), 1998.</li> <li><i>Rogue Asteroids and Doomsday Comets,</i> by Duncan Steele, Wiley 1995</li> </ul> <p>These are more technical but very good:</p> <ul> <li><i>Asteroids II,</i> Edited by Tom Gehrels, Univ. of Arizona Press, 1989.</li> <li><i>Asteroids III,</i> Edited by W. Bottke et al., Univ. of Arizona Press, 2002.</li> <li><i>Hazards Due to Comets and Asteroids,</i>Edited by Tom Gehrels, Univ. of Arizona Press, 1994.</li> </ul> </div></div><div class="text-end text-right"><span><a href="/faq/what-books-are-available-topics-asteroids-and-impact-hazard" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading18"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-18" aria-expanded="false" aria-controls="collapseOne"> I would like to visit SPACEWATCH庐 and learn how to observe asteroids. </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-18" class="collapse" aria-labelledby="heading18" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>Thank you for your interest. Unfortunately, SPACEWATCH庐 does not offer training for other observing programs. There are too few of us to have time to teach anyone else, and our equipment, software, and methods are too different from what everyone else is using for such an effort to be worthwhile. We suggest that you contact the <a href="https://groups.io/g/mpml">Minor Planet Mailing List</a> and ask whether you could visit someone who uses software and equipment similar to what you would be likely to procure for yourself.</p> </div></div><div class="text-end text-right"><span><a href="/faq/i-would-visit-spacewatch%C2%AE-and-learn-how-observe-asteroids" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading19"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-19" aria-expanded="false" aria-controls="collapseOne"> What do the temporary designations of asteroid candidates sent from SPACEWATCH庐 to the Minor Planet Center's Near-Earth Object Confirmation Page mean? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-19" class="collapse" aria-labelledby="heading19" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>Key to the designations is given in the table below:</p><blockquote class="blockquote"><pre>Prefix Survey Name COD Era ------ ----------------- --- ----------------------- FS-nnn = First SPACEWATCH庐 691 circa 1984-1988) SS-nnn = Second SPACEWATCH庐 691 circa 1989-2002 Apr 23) ts-nnn = Third SPACEWATCH庐 291 circa 2001-2011 Oct 1) SW4xxx = 4th SPACEWATCH庐 691 2002 Apr 24 -present) SW5xxx = 5th SPACEWATCH庐 291 2011 Oct 16 - present) SW6xxx = 6th SPACEWATCH庐 ^695 2010 - 2017) using KPNO Mayall 4-meter telescope. SWBxxx = Bok SPACEWATCH庐 ^695 2016 Apr 18 - present using Steward Bok 2.3-m telescope. where "nnn" = an integer from 001 to 999 and "xxx" = a heirarchical string of characters running sequentially through digits 0-9, letters a-z (lower-case), followed by A-Z (upper-case). From 1984 April through 2002 April 23, COD 691 was the Steward Observatory <a href="/telescopes#09meter" target="new">0.9-meter f/5 Newtonian</a> telescope with various CCDs of increasing size with time (also see: <a href="/sites/spacewatch.lpl.arizona.edu/files/Spacewatch_apparatus_epochs_240619.pdf" target="new">0.9-meter telescope equipment epoch table)</a>. COD 691 is presently a <a href="/telescopes#09meter" target="new">0.9-meter f/3</a> telescope with corrected prime focus and four CCDs in a mosaic covering an area of 2.9 square degrees (also see: <a href="/sites/spacewatch.lpl.arizona.edu/files/Spacewatch_apparatus_epochs_240619.pdf" target="new">0.9-meter telescope equipment epoch table)</a>. COD 291 is the SPACEWATCH庐 <a href="/telescopes#18meter" target="new">1.8-meter telescope</a> with a 2048x2048 CCD at folded, corrected f/2.7 prime focus (also see: <a href="/sites/spacewatch.lpl.arizona.edu/files/Spacewatch_apparatus_epochs_240619.pdf" target="new">1.8-meter telescope equipment epoch table)</a>.</pre></blockquote></div></div><div class="text-end text-right"><span><a href="/faq/what-do-temporary-designations-asteroid-candidates-sent-spacewatch-minor-planet-centers-near" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading20"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-20" aria-expanded="false" aria-controls="collapseOne"> Can I add a link to your web page? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-20" class="collapse" aria-labelledby="heading20" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>Yes! By all means, if you want to link to us, please do!</p> <blockquote class="blockquote">Title: The SPACEWATCH庐 Project <br> URL: <a href="https://spacewatch.lpl.arizona.edu">https://spacewatch.lpl.arizona.edu</a></blockquote> </div></div><div class="text-end text-right"><span><a href="/faq/can-i-add-link-your-web-page" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading21"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-21" aria-expanded="false" aria-controls="collapseOne"> Can you add a link to my page? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-21" class="collapse" aria-labelledby="heading21" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>If your site has appropriate scientific value or content, email the SPACEWATCH庐 Webmaster about it. We will inspect it and let you know about its suitability or unsuitability for linking by us. We cannot link to sites arbitrarily, without investigating whether the site has bearing on our field. Thanks for your understanding and consideration in this matter.</p> </div></div><div class="text-end text-right"><span><a href="/faq/can-you-add-link-my-page" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div> <div class="card mb-1"> <div class="card-header" id="heading22"> <h3 class="my-0"> <button class="btn btn-link" data-toggle="collapse" data-target="#views-bootstrap-faq-page-faq-collapse-22" aria-expanded="false" aria-controls="collapseOne"> Why does SPACEWATCH庐 have a circled R after its name? </button> </h3> </div> <div id="views-bootstrap-faq-page-faq-collapse-22" class="collapse" aria-labelledby="heading22" data-parent="#views-bootstrap-faq-page-faq"> <div class="card-body"> <div class="views-field views-field-body"><div class="field-content"><p>SPACEWATCH庐 is a trademark registered with the <a href="https://search.uspto.gov/search?query=SPACEWATCH&op=Search&affiliate=web-sdmg-uspto.gov">U. S. Patent and Trademark Office</a>.  This protects our name from misuse and maintains its uniqueness for the purpose of fund-raising.</p> <p> </p> </div></div><div class="text-end text-right"><span><a href="/faq/why-does-spacewatch-have-circled-r-after-its-name" class="btn btn-hollow-primary btn-sm btn-arrow" hreflang="und">Permalink</a></span></div><div class="views-field views-field-edit-node"><span class="field-content"></span></div> </div> </div> </div></div> </div> </div> </div> </div> </div> </section> </main> </div> </div> </div> </div> <footer class="site-footer"> <div class="bg-warm-gray py-5" role="contentinfo"> <section> <div class="container"> <div class="row"> <div class="col-12 col-sm-5 col-md-4 col-lg-4 text-center-xs text-left-not-xs"> <div class="row"> <div class="col"> <a href="https://science.arizona.edu" title="SPACEWATCH庐 | Home" rel="home" class="qs-site-logo d-block mt-0"><img class="img-fluid" src="/themes/lpl_barrio/images/logo_footer.png" alt="SPACEWATCH庐 | Home" 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Today, Arizona is home to 22 federally recognized tribes, with Tucson being home to the O鈥檕dham and the Yaqui. 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