(175706) 1996 FG3

Near-Earth object December 2018 yes (175706) 1996 FG 3 #FFC2E0 1996FG3.family.portrait.png Delay-Doppler radar images of 1996 FG 3 and its moon from Arecibo Observatory in 2011 24 March 1996 R. H. McNaught Siding Spring Obs. (175706) 1996 FG 3 ApolloNEOPHA 27 April 2019 (JD 2458600.5) 0 17.96 yr (6,560 d) 1.4224 AU 0.6853 AU 1.0538 AU 0.3497 1.08 yr (395 d) 11.261° 0.9110 ms / day 1.9911° 299.69° 24.052° 0.0283 AU (11 LD) 1(diameter: 0.49 0.08 km)(orbital period: 16.1508 h) 1.196 0.362 km1.55 km1.64 0.20 km1.69 0.18 km1.84 0.56 km1.90 0.28 km 3.5942 h 0.03 0.030.039 0.0120.042 0.0350.046 0.0140.0580.072 0.039 SMASS CBC/ChB–V 0.708 0.005V–R = 0.380 0.003V–I 0.714 0.004 17.7617.833 0.02418.4 (175706) 1996 FG 3 is a carbonaceous asteroid and binary system, classified as a near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 1.7 km mi off 2 us in diameter. The primary has a spheroidal shape. Its minor-planet moon measures approximately 490 m ft off 2 us in diameter. It was discovered on 24 March 1996, by Australian astronomer Robert McNaught at Siding Spring Observatory in New South Wales, Australia. The asteroid was a target of NASA's Janus Serenity space probe,New SIMPLEx Mission to Send SmallSats on Longest Deep Space Journey to Date at NASA until the delay of the rocket launch made the target inaccessible.https://spacenews.com/psyche-launch-delay-forcing-revamp-of-rideshare-mission/ Psyche launch delay forcing revamp of rideshare mission 9 June 2022 Jeff Foust spacenews.com 11 June 2022 In 2017, scientists from the Chinese Academy of Sciences' Purple Mountain Observatory revealed a plan to land a probe on this asteroid in 2029, as part of an asteroid exploration mission. Numbering and naming This minor planet was numbered by the Minor Planet Center on 21 February 2008. As of 2021, it has not been named. Orbit and classification 1996 FG 3 orbits the Sun at a distance of 0.7–1.4 AU once every 1 years and 1 month (395 days; semi-major axis of 1.05 AU). Its orbit has an eccentricity of 0.35 and an inclination of 2° with respect to the ecliptic. It has an Earth minimum orbital intersection distance of 0.0283 AU km on 3, which corresponds to 11.0 lunar distances. In 2019 a precovery observation from Palomar Mountain was found, extending the body's observation arc into 1985. Physical characteristics The carbonaceous body is characterized as a rare B-type and hydrated C-type (Ch) asteroid, respectively. Lightcurves Several rotational lightcurves of this asteroid were obtained from photometric observations taken by astronomers Petr Pravec, Petr Scheirich and Stefano Mottola, as well as by the Very Large Telescope VISR instrument. Lightcurve analysis gave a well-defined rotation period of 3.594 to 3.595 hours with a brightness variation of 0.08 to 0.10 magnitude (U=3/3/3/3). The asteroid is an oblate ellipsoid with a nearly spherical shape. Diameter and albedo According to numerous observations, including the EXPLORENEOs survey, NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission and the Spitzer Space Telescope, the asteroid measures between 1.55 and 1.90 kilometers in diameter and its surface has a low albedo of 0.03 to 0.05. The Collaborative Asteroid Lightcurve Link adopts an albedo of 0.04 and a diameter of 1.90 kilometers. Satellite Asteroid moon During the photometric observations in December 1998, the binary nature of this asteroid was revealed. It was the first binary near-Earth asteroid for which eclipse events were detected in the visible spectrum. The binary system has a diameter ratio of 0.28, a density of 1.4 g/cm3, and an ecliptic latitude of -84° for its mutual spin axis. The asteroid moon is remains undesignated. It has a diameter of approximately 490 meters, an orbital period of 16.1508 hours, and a nearly circular orbit, with an eccentricity of 0.1 and a semi-major axis of approximately 3.4 primary radii.2 The orbital period was later estimated to be around 16.15 hours. Exploration Rejected Marco Polo mission Due to its binary nature and its low delta-v heliocentric orbit, this asteroid was selected for MarcoPolo-R, which was the Marco Polo spacecraft first proposed mission. MarcoPolo-R was originally selected for the assessment study phase in the M3 slot of ESA's Cosmic Vision program, but rejected in favor of PLATO by the end of 2012. Janus spacecraft Janus (spacecraft) The asteroid was a planned target of NASA's Janus Serenity space probe, which was scheduled to launch in 2022 alongside NASA's Psyche spacecraft, and to arrive at 1996 FG 3 in 2026. 1996 FG 3 became impossible to reach for Janus when the launch of Psyche was delayed. Planned Chinese mission In 2017, Chinese scientists announced they plan to land a probe on 1996 FG 3 after 2029 as part of its asteroid exploration mission. The mission includes plans for fly-by of three asteroids (one of them is 99942 Apophis), and land on 1996 FG 3 to conduct in situ sampling analysis on the surface, according to Ji Jianghui, a researcher at the Purple Mountain Observatory of the Chinese Academy of Sciences and a member of the expert committee for scientific goal argumentation of deep space exploration in China. The probe is also expected to conduct a fly-by of a third asteroid to be determined at a later time. The entire mission is expected to take about six years. See also (35107) 1991 VH, binary near-Earth asteroid and former target of the Janus Mayhem mission, until the launch delay made the target inaccessible References 30em 2014-03-10 last obs. JPL Small-Body Database Browser: 175706 (1996 FG3) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2175706 Jet Propulsion Laboratory 12 December 2018 175706 (1996 FG3) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=175706 14 December 2016 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 24 February 2018 Central Bureau for Astronomical Telegrams – Circular No. 7069 IAU – International Astronomical Union 18 December 1998 http://www.cbat.eps.harvard.edu/iauc/07000/07069.html#Item2 14 December 2016 Central Bureau for Astronomical Telegrams – Circular No. 7074 IAU – International Astronomical Union 26 December 1998 http://www.cbat.eps.harvard.edu/iauc/07000/07074.html#Item2 14 December 2016 J. de León T. Mothé-Diniz J. Licandro N. Pinilla-Alonso H. Campins June 2011 New observations of asteroid (175706) 1996 FG3, primary target of the ESA Marco Polo-R mission http://www.aanda.org/articles/aa/pdf/2011/06/aa17041-11.pdf Astronomy and Astrophysics 530 4 2011A&A...530L..12D 10.1051/0004-6361/201117041 14 December 2016 free Johnston Robert (175706) 1996 FG3 16 November 2014 johnstonsarchive.net http://www.johnstonsarchive.net/astro/astmoons/am-175706.html 14 December 2016 Riding an asteroid: China's next space goal Yu Fei Xinhua News 7 March 2017 http://www.spacedaily.com/reports/Riding_an_asteroid_Chinas_next_space_goal_999.html 1 May 2017 175706 14 December 2016 6 Petr Pravec Lenka Sarounová David L. Rabinowitz Michael D. Hicks Marek Wolf Yurij N. Krugly Fiodor P. Velichko Vasilij G. Shevchenko Vasilij G. Chiorny Ninel M. Gaftonyuk Guy Genevier July 2000 Two-Period Lightcurves of 1996 FG 3, 1998 PG, and (5407) 1992 AX: One Probable and Two Possible Binary Asteroids Icarus 146 1 190–203 2000Icar..146..190P 10.1006/icar.2000.6375 6 Michael Mueller M. Delbo' J. L. Hora D. E. Trilling B. Bhattacharya W. F. Bottke S. Chesley J. P. Emery G. Fazio A. W. Harris A. Mainzer M. Mommert B. Penprase H. A. Smith T. B. Spahr J. A. Stansberry C. A. Thomas April 2011 ExploreNEOs. III. Physical Characterization of 65 Potential Spacecraft Target Asteroids The Astronomical Journal 141 4 9 2011AJ....141..109M 10.1088/0004-6256/141/4/109 https://authors.library.caltech.edu/23152/1/Mueller2011p13239Astron_J.pdf 6 Stephen D. Wolters Ben Rozitis Samuel R. Duddy Stephen C. Lowry Simon F. Green Colin Snodgrass Olivier R. Hainaut Paul Weissman December 2011 Physical characterization of low delta-V asteroid (175706) 1996 FG3 Monthly Notices of the Royal Astronomical Society 418 2 1246–1257 2011MNRAS.418.1246W 10.1111/j.1365-2966.2011.19575.x free Kevin J. Walsh Marco Delbo' Michael Mueller Richard P. Binzel Francesca E. DeMeo April 2012 Physical Characterization and Origin of Binary Near-Earth Asteroid (175706) 1996 FG3 The Astrophysical Journal 748 2 7 2012ApJ...748..104W 10.1088/0004-637X/748/2/104 1203.4820 62800879 6 A. Mainzer T. Grav J. Masiero J. Bauer R. M. Cutri R. S. McMillan C. R. Nugent D. Tholen R. Walker E. L. Wright November 2012 Physical Parameters of Asteroids Estimated from the WISE 3-Band Data and NEOWISE Post-Cryogenic Survey The Astrophysical Journal Letters 760 1 6 2012ApJ...760L..12M 10.1088/2041-8205/760/1/L12 1210.0502 41459166 6 P. Scheirich P. Pravec S. A. Jacobson J. Durech P. Kusnirák K. Hornoch S. Mottola M. Mommert S. Hellmich D. Pray D. Polishook Yu. N. Krugly R. Ya. Inasaridze O. I. Kvaratskhelia V. Ayvazian I. Slyusarev J. Pittichová E. Jehin J. Manfroid M. Gillon A. Galád J. Pollock J. Licandro V. Alí-Lagoa J. Brinsfield I. E. Molotov January 2015 The binary near-Earth Asteroid (175706) 1996 FG3 - An observational constraint on its orbital evolution Icarus 245 56–63 2015Icar..245...56S 10.1016/j.icarus.2014.09.023 1406.4677 119248574 Stefano Mottola Felix Lahulla August 2000 Mutual Eclipse Events in Asteroidal Binary System 1996 FG 3: Observations and a Numerical Model Icarus 146 2 556–567 2000Icar..146..556M 10.1006/icar.2000.6421 6 P. Pravec P. Scheirich P. Kusnirák L. Sarounová S. Mottola G. Hahn P. Brown G. Esquerdo N. Kaiser Z. Krzeminski D. P. Pray B. D. Warner A. W. Harris M. C. Nolan E. S. Howell L. A. M. Benner J.-L. Margot A. Galád W. Holliday M. D. Hicks Yu. N. Krugly D. Tholen R. Whiteley F. Marchis D. R. DeGraff A. Grauer S. Larson F. P. Velichko W. R. Cooney R. Stephens J. Zhu K. Kirsch R. Dyvig L. Snyder V. Reddy S. Moore S. Gajdos J. Világi G. Masi D. Higgins G. Funkhouser B. Knight S. Slivan R. Behrend M. Grenon G. Burki R. Roy C. Demeautis D. Matter N. Waelchli Y. Revaz A. Klotz M. Rieugné P. Thierry V. Cotrez L. Brunetto G. Kober March 2006 Photometric survey of binary near-Earth asteroids Icarus 181 1 63–93 2006Icar..181...63P 10.1016/j.icarus.2005.10.014 Petr Pravec Alan W. Harris Peter Kusnirák Adrián Galád Kamil Hornoch September 2012 Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations Icarus 221 1 365–387 2012Icar..221..365P 10.1016/j.icarus.2012.07.026 6 C. A. Thomas D. E. Trilling J. P. Emery M. Mueller J. L. Hora L. A. M. Benner B. Bhattacharya W. F. Bottke S. Chesley M. Delbó G. Fazio A. W. Harris A. Mainzer M. Mommert A. Morbidelli B. Penprase H. A. Smith T. B. Spahr J. A. Stansberry September 2011 ExploreNEOs. V. Average Albedo by Taxonomic Complex in the Near-Earth Asteroid Population The Astronomical Journal 142 3 12 2011AJ....142...85T 10.1088/0004-6256/142/3/85 free Cristina A. Thomas Joshua P. Emery David E. Trilling Marco Delbó Joseph L. Hora Michael Mueller January 2014 Physical characterization of Warm Spitzer-observed near-Earth objects Icarus 228 217–246 2014Icar..228..217T 10.1016/j.icarus.2013.10.004 1310.2000 119278697 External links Asteroids with Satellites, Robert Johnston, johnstonsarchive.net Asteroid (175706) 1996 FG3 https://web.archive.org/web/20181215224415/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=175706 15 December 2018 , Small Bodies Data Ferret List of the Potentially Hazardous Asteroids (PHAs), Minor Planet Center 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 175706 175706 1996FG3 175706 (175706) 1996 FG 3 175706 Category:Discoveries by Robert H. McNaught 175706 175706 175706 19960324