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- Precovery abstract "In astronomy, precovery (short for "pre-discovery recovery") is the process of finding the image of an object in old archived images or photographic plates for the purpose of calculating a more accurate orbit. This happens most often with minor planets, but sometimes a comet, a dwarf planet, a natural satellite, or a star is found in old archived images; even exoplanet precovery observations have been obtained.Calculating the orbit of an astronomical object involves measuring its position on multiple occasions. The more widely separated these are in time, the more accurately the orbit can be calculated. However, for a newly discovered object, only a few days' or weeks' worth of measured positions may be available, which is only sufficient for a preliminary (imprecise) orbit calculation.When an object is of particular interest (such as asteroids with a chance of impacting Earth), researchers begin a search for precovery images. Using the preliminary orbit calculation to predict where the object might appear on old archival images, those images (sometimes decades old) are searched to see if it had been in fact photographed already. If so, a far more precise orbital calculation can then be made.Until fast computers were widely available, it was impractical to analyze and measure images for possible minor planet discoveries because this involved a considerable amount of manual labor. Usually, such images were made years or decades earlier for other purposes (studies of galaxies, etc.), and it was not worth the time it took to look for precovery images of ordinary asteroids. Today, computers can easily analyze digital astronomical images and compare them to star catalogs containing up to a billion or so star positions to see if one of the "stars" is actually a precovery image of the newly discovered object. This technique has been used since the mid-1990s to determine the orbits of an enormous number of minor planets.The term "precovery" refers to a pre-discovery image. "Recovery" refers to imaging of an object which was lost to our view (as behind the Sun), but is now visible again.".
- Precovery wikiPageExternalLink skymorph.html.
- Precovery wikiPageID "1334838".
- Precovery wikiPageLength "9126".
- Precovery wikiPageOutDegree "42".
- Precovery wikiPageRevisionID "671316623".
- Precovery wikiPageWikiLink (225088)_2007_OR10.
- Precovery wikiPageWikiLink (29075)_1950_DA.
- Precovery wikiPageWikiLink (307261)_2002_MS4.
- Precovery wikiPageWikiLink 1,000,000,000.
- Precovery wikiPageWikiLink 1000000000_(number).
- Precovery wikiPageWikiLink 2060_Chiron.
- Precovery wikiPageWikiLink 28978_Ixion.
- Precovery wikiPageWikiLink 2_Pallas.
- Precovery wikiPageWikiLink 38628_Huya.
- Precovery wikiPageWikiLink 50000_Quaoar.
- Precovery wikiPageWikiLink 69230_Hermes.
- Precovery wikiPageWikiLink 90377_Sedna.
- Precovery wikiPageWikiLink 90482_Orcus.
- Precovery wikiPageWikiLink Asteroid.
- Precovery wikiPageWikiLink Astronomy.
- Precovery wikiPageWikiLink Category:Planetary_science.
- Precovery wikiPageWikiLink Centaur_(minor_planet).
- Precovery wikiPageWikiLink Comet.
- Precovery wikiPageWikiLink DANEOPS.
- Precovery wikiPageWikiLink DLR-Archenhold_Near_Earth_Objects_Precovery_Survey.
- Precovery wikiPageWikiLink Discovery_image.
- Precovery wikiPageWikiLink Dwarf_planet.
- Precovery wikiPageWikiLink Eris_(dwarf_planet).
- Precovery wikiPageWikiLink Exoplanet.
- Precovery wikiPageWikiLink Extrasolar_planet.
- Precovery wikiPageWikiLink Fixed_star.
- Precovery wikiPageWikiLink Fixed_stars.
- Precovery wikiPageWikiLink Galaxy.
- Precovery wikiPageWikiLink Galileo_Galilei.
- Precovery wikiPageWikiLink Haumea.
- Precovery wikiPageWikiLink Haumea_(dwarf_planet).
- Precovery wikiPageWikiLink Impact_event.
- Precovery wikiPageWikiLink John_Flamsteed.
- Precovery wikiPageWikiLink Jérôme_Lalande.
- Precovery wikiPageWikiLink List_of_possible_dwarf_planets.
- Precovery wikiPageWikiLink Makemake.
- Precovery wikiPageWikiLink Makemake_(dwarf_planet).
- Precovery wikiPageWikiLink Minor_planet.
- Precovery wikiPageWikiLink Natural_satellite.
- Precovery wikiPageWikiLink Neptune.
- Precovery wikiPageWikiLink Orbit.
- Precovery wikiPageWikiLink Photographic_plate.
- Precovery wikiPageWikiLink Photographic_plates.
- Precovery wikiPageWikiLink Pluto.
- Precovery wikiPageWikiLink Provisional_designation.
- Precovery wikiPageWikiLink Provisional_designation_in_astronomy.
- Precovery wikiPageWikiLink Star.
- Precovery wikiPageWikiLink Star_catalog.
- Precovery wikiPageWikiLink Star_catalogue.
- Precovery wikiPageWikiLink Uranus.
- Precovery wikiPageWikiLinkText "Pre-discovery recovery".
- Precovery wikiPageWikiLinkText "Precovery".
- Precovery wikiPageWikiLinkText "Prediscovery".
- Precovery wikiPageWikiLinkText "precover".
- Precovery wikiPageWikiLinkText "precovered".
- Precovery wikiPageWikiLinkText "precoveries".
- Precovery wikiPageWikiLinkText "precovery".
- Precovery wikiPageWikiLinkText "prediscovery image".
- Precovery wikiPageWikiLinkText "prediscovery".
- Precovery wikiPageWikiLinkText "recovered".
- Precovery hasPhotoCollection Precovery.
- Precovery wikiPageUsesTemplate Template:Mpl.
- Precovery wikiPageUsesTemplate Template:Reflist.
- Precovery wikiPageUsesTemplate Template:Wiktionary.
- Precovery subject Category:Planetary_science.
- Precovery hypernym Process.
- Precovery type Election.
- Precovery type Sub-discipline.
- Precovery comment "In astronomy, precovery (short for "pre-discovery recovery") is the process of finding the image of an object in old archived images or photographic plates for the purpose of calculating a more accurate orbit.".
- Precovery label "Precovery".
- Precovery sameAs Precovery.
- Precovery sameAs Precovery.
- Precovery sameAs Pré-découverte.
- Precovery sameAs Precovery.
- Precovery sameAs Precovery.
- Precovery sameAs Precovery.
- Precovery sameAs m.04tm62.
- Precovery sameAs Precovery.
- Precovery sameAs Наблюдения_до_открытия.
- Precovery sameAs පූර්වතිසාධනය.
- Precovery sameAs Q1463544.
- Precovery sameAs Q1463544.
- Precovery wasDerivedFrom Precovery?oldid=671316623.
- Precovery isPrimaryTopicOf Precovery.