(311999) 2007 NS2

Mars trojan August 2020 yes (311999) 2007 NS 2 #FA8072 16 July 2007 Major News About Minor Objects http://www.hohmanntransfer.com/mn/07/07197_0716.htm 22 April 2009 6 August 2019 https://web.archive.org/web/20190806162304/http://www.hohmanntransfer.com/mn/07/07197_0716.htm dead 14 July 2007 Observatorio Astronómico de La Sagra Martian L5 125 311999 (2007 NS2) 2311999 yes 28 March 2016AstDys-1 13 January 2016 (JD 2457400.5) 1.6061055 AU Gm on on 1.4414495 AU Gm on 1.5237775 AU Gm on 0.0540289 1.88 yr (687.04 d) 18.62037° 282.49476° 29.476921° 176.94930° 800–1600 m 18.1 0.5239885°/day 6296 days (17.24 yr) 0 (311999) 2007 NS 2 is an asteroid and Mars trojan orbiting near the yes of Mars. Discovery, orbit and physical properties 2007 NS 2 was discovered on 14 July 2007, by the Observatorio Astronómico de La Sagra.2007 NS2 discovery blogDiscovery MPECUpdate MPECNew Scientist article on the discovery Its orbit is characterized by low eccentricity (0.054), moderate inclination (18.6°) and a semi-major axis of 1.52 AU.MPC data on 2007 NS2 Upon discovery, it was classified as Mars-crosser by the Minor Planet Center. Its orbit is well determined as it is currently (March 2013) based on 87 observations with a data-arc span of 4,800 days. 2007 NS 2 has an absolute magnitude of 17.8, which gives a characteristic diameter of 870 m. Mars trojan and orbital evolution Jean Meeus suspected that 2007 NS 2 was a Mars Trojan, and this was confirmed by Reiner Stoss's analysis of two sets of observations dating from 1998 on the MPC database.http://britastro.org/asteroids/Asteroid%20news.htm Table of contents Britastro.org 2013-10-29 It was confirmed to be a Mars Trojan numerically in 2012.Schwarz R. Dvorak R. 2012 Trojan capture by terrestrial planets Celestial Mechanics and Dynamical Astronomy 113 1 23 2012CeMDA.113...23S 10.1007/s10569-012-9404-4 1611.07413 254375599 Recent calculations confirm that it is a stable Mars Trojan asteroid with a libration period of 1310 years and an amplitude of 14°.Carlos de la Fuente Marcos de la Fuente Marcos Raúl 2013 Three new stable L5 Mars Trojans Monthly Notices of the Royal Astronomical Society Letters 432 1 L31–L35 1303.0124 2013MNRAS.432L..31D 10.1093/mnrasl/slt028 free Christou A. A. 2013 Orbital clustering of Martian Trojans: An asteroid family in the inner solar system? Icarus 224 1 144–153 1303.0420 2013Icar..224..144C 10.1016/j.icarus.2013.02.013 119186791 These values as well as its short-term orbital evolution are similar to those of 5261 Eureka. Out of all known Mars Trojans, it currently has the smallest relative (to Mars) semimajor axis, 0.000059 AU. Origin Long-term numerical integrations show that its orbit is very stable on Gyr time-scales (1 Gyr = 1 billion years). As in the case of Eureka, calculations in both directions of time (4.5 Gyr into the past and 4.5 Gyr into the future) indicate that 2007 NS 2 may be a primordial object, perhaps a survivor of the planetesimal population that formed in the terrestrial planets region early in the history of the Solar System. thumb|left|Animation of 2007 NS 2 relative to Sun and Mars 1600-2500 Yellow Sun magenta 2007 NS 2 lime Mars See also (101429) 1998 VF 31 (121514) 1999 UJ 7 (385250) 2001 DH 47 (816688) 2011 SC 191 2009 SE 2011 SL 25 2011 SP 189 2011 UB 256 2011 UN 63 2016 CP 31 2018 EC 4 2018 FC 4 2020 VT 1 References Further reading Rodriguez J. 2007 2007 NS2 Minor Planet Electronic Circular 2007-O03 2007MPEC....O...03R 2007–0303 etal Skiff B. A. 2007 2007 NS2 Minor Planet Electronic Circular 2007-O09 2007–O09 2007MPEC....O...09S etal Schwarz R. Dvorak R. 2007 Trojan capture by terrestrial planets Celestial Mechanics and Dynamical Astronomy 113 1 23 2012CeMDA.113...23S 10.1007/s10569-012-9404-4 1611.07413 254375599 Carlos de la Fuente Marcos de la Fuente Marcos Raúl 2013 Three new stable L5 Mars Trojans Monthly Notices of the Royal Astronomical Society Letters 432 1 L31 1303.0124 2013MNRAS.432L..31D 10.1093/mnrasl/slt028 free Christou A. A. 2007 Orbital clustering of martian Trojans: An asteroid family in the inner Solar System? Icarus 224 1 144 1303.0420 2013Icar..224..144C 10.1016/j.icarus.2013.02.013 119186791 External links 2007 NS 2 data at MPC. 311999 311999 (311999) 2007 NS 2 Solar System 311999 311999 311999 20070714