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(101429) 1998 VF31

From Wikipedia, the free encyclopedia

(101429) 1998 VF31
Discovery[1]
Discovered byLINEAR
Discovery siteSocorro, New Mexico
Discovery date13 November 1998
Designations
(101429) 1998 VF31
1998 VF31
Martian L5
Martian L5
, Mars-crossing asteroid
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc7056 days (19.32 yr)
Aphelion1.6771808 AU (250.90268 Gm)
Perihelion1.3711043 AU (205.11428 Gm)
1.5241426 AU (228.00849 Gm)
Eccentricity0.1004094
1.88 yr (687.28 d)
301.39501°
0° 31m 25.681s / day
Inclination31.295943°
221.31782°
310.56601°
Physical characteristics
17.2 h[1]
S[2]
17.2[1]

(101429) 1998 VF31 (provisional designation 1998 VF31) is a sub-kilometer asteroid that orbits near Mars's L5 Lagrangian point, on average trailing 60° behind it. Its orbit is highly stable, and was originally thought to be spectroscopically similar to 5261 Eureka, suggesting they may both be primordial Martian asteroids.[3]

Spectroscopic observations through 2007 indicate that it has a large proportion of metal and achondrites on its surface (either with or without a mesosiderite contribution); which could also indicate that the surface regolith has undergone space weathering. These observations also reveal differences in the spectra with 5261 Eureka, suggesting they may not be related to each other after all.[2]

See also

References

  1. ^ a b c d "JPL Small-Body Database Browser". Retrieved 7 April 2016.
  2. ^ a b Rivkin, Andrew S.; Trilling, David E.; Thomas, Cristina A.; DeMeo, Francesca; Spahr, Timothy B.; Binzel, Richard P. (December 2007). "Composition of the L5 Mars Trojans: Neighbors, not Siblings". Icarus. 192 (2): 434–441. arXiv:0709.1925. Bibcode:2007Icar..192..434R. doi:10.1016/j.icarus.2007.06.026. S2CID 15118710.
  3. ^ Rivkin, Andrew. S.; Binzel, R. P.; Howell, E. S.; Bus, S. J.; Grier, J. A. (October 2003). "Spectroscopy and photometry of Mars Trojans". Icarus. 165 (2): 349–354. Bibcode:2003Icar..165..349R. doi:10.1016/S0019-1035(03)00211-2.

External links

This page was last edited on 2 February 2024, at 23:43
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