1791 Patsayev

Main-belt asteroid October 2019 yes 1791 Patsayev #D6D6D6 001791-asteroid shape model (1791) Patsayev.png Shape model of Patsayev from its lightcurve 4 September 1967 T. Smirnova Crimean Astrophysical Obs. (1791) Patsayev 1967 RE1931 TW 31943 GS1943 GZ1948 JO1948 KA1957 JG1957 KS1958 RC Viktor Patsayev (cosmonaut) main-belt(middle) 4 September 2017 (JD 2458000.5) 0 84.79 yr (30,970 days) 3.1351 AU 2.3603 AU 2.7477 AU 0.1410 4.55 yr (1,664 days) 48.980° 0.2164 ms / day 5.3689° 198.89° 74.431° 25.69 km (derived)29.394 0.114 km29.446 0.287 km31.50 0.37 km 19.809 0.013 h 0.030 0.0040.034 0.0060.0390 0.00760.0465 (derived) C 11.811.9 1791 Patsayev (prov. designation: 1967 RE) is a dark background asteroid from the central region of the asteroid belt, approximately 26 kilometers in diameter. It was discovered on 4 September 1967, by Russian astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. The asteroid was named after cosmonaut Viktor Patsayev. Orbit and classification The dark C-type asteroid orbits the Sun in the central main-belt at a distance of 2.4–3.1 AU once every 4 years and 7 months (1,664 days). Its orbit has an eccentricity of 0.14 and an inclination of 5° with respect to the ecliptic. Patsayev was first identified as 1931 TW 3 at Lowell Observatory in 1931, extending the body's observation arc by 36 years prior to its official discovery observation. Physical characteristics Rotation period In April 2016, a rotational lightcurve of Patsayev was obtained from photometric observations taken by Sydney Black at the Oakley Southern Sky Observatory in Coonabarabran, Australia. It gave a well-defined rotation period of 19.809 hours with a brightness variation of 0.28 in magnitude (U=3). Diameter and albedo According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Patsayev measures between 29.39 and 31.50 kilometers in diameter, and its surface has a high albedo between 0.030 and 0.039. The Collaborative Asteroid Lightcurve Link (CALL) disagrees with the results found by WISE. CALL derives a much lower carbonaceous albedo of 0.046, and calculates a diameter of 25.69 kilometers with an absolute magnitude of 11.9. Naming This minor planet was named in honor of Russian–Soviet cosmonaut Viktor Patsayev (1933–1971), test Engineer of the Soyuz 11 spacecraft, who died on his first spaceflight on 30 June 1971 during the vehicle's return to Earth after completing the flight program of the first crewed orbital station, Salyut. The lunar crater Patsaev is also named after him. The precedingly numbered minor planets 1789 Dobrovolsky and 1790 Volkov were named in honour of his dead crew members. The names of all three cosmonauts are also engraved on the plaque next to the sculpture of the Fallen Astronaut on the Moon, which was placed there during the Apollo 15 mission, containing the names of eight American astronauts and six Soviet cosmonauts, who had all died in service. The official 1791 naming citation was published by the Minor Planet Center on 1 July 1972 (M.P.C. 3296). References 30em 2016-07-29 last obs. JPL Small-Body Database Browser: 1791 Patsayev (1967 RE) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001791 Jet Propulsion Laboratory 8 June 2017 Dictionary of Minor Planet Names – (1791) Patsayev Schmadel Lutz D. Springer Berlin Heidelberg 143 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1792 (1791) Patsayev 1791 Patsayev (1967 RE) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1791 19 December 2016 Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) 2009 https://archive.org/details/dictionaryminorp2008schm limited Appendix – Publication Dates of the MPCs Schmadel Lutz D. Springer Berlin Heidelberg 221 978-3-642-01964-7 10.1007/978-3-642-01965-4 1791 19 December 2016 6 A. Mainzer T. Grav J. Masiero E. Hand J. Bauer D. Tholen R. S. McMillan T. Spahr R. M. Cutri E. Wright J. Watkins W. Mo C. Maleszewski November 2011 NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results The Astrophysical Journal 741 2 25 2011ApJ...741...90M 10.1088/0004-637X/741/2/90 1109.6407 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri C. Nugent M. S. Cabrera November 2012 Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M The Astrophysical Journal Letters 759 1 5 2012ApJ...759L...8M 10.1088/2041-8205/759/1/L8 1209.5794 19 December 2016 Sydney Black Dylan Linville Danielle Michalik Matthew Wolf Richard Ditteon October 2016 Lightcurve Analysis of Asteroids Observed at the Oakley Southern Sky Observatory: 2015 December - 2016 April http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016MPBu...43..287B The Minor Planet Bulletin 43 4 287–289 1052-8091 2016MPBu...43..287B 19 December 2016 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri J. Dailey P. R. M. Eisenhardt R. S. McMillan T. B. Spahr M. F. Skrutskie D. Tholen R. G. Walker E. L. Wright E. DeBaun D. Elsbury T. IV Gautier S. Gomillion A. Wilkins November 2011 Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M The Astrophysical Journal 741 2 20 2011ApJ...741...68M 10.1088/0004-637X/741/2/68 1109.4096 19 December 2016 External links Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 ) Dictionary of Minor Planet Names, Google books Asteroids and comets rotation curves, CdR https://web.archive.org/web/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1791 1790 Volkov 1791 1792 Reni 001791 Category:Discoveries by Tamara Mikhaylovna Smirnova Category:Named minor planets 19670904