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(101429) 1998 Vf31

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Title: (101429) 1998 Vf31  
Author: World Heritage Encyclopedia
Language: English
Subject: (121514) 1999 UJ7, Mars trojan, (311999) 2007 NS2, Transit of Venus from Mars, Trojan (astronomy)
Collection: Astronomical Objects Discovered in 1998, Mars Trojans, Mars-Crossing Asteroids, S-Type Asteroids
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(101429) 1998 Vf31

(101429) 1998 VF31
Discovery[1]
Discovered by LINEAR
Discovery site Socorro, New Mexico
Discovery date November 13, 1998
Designations
Minor planet category Martian L5 Martian L5
Orbital characteristics[1]
Epoch 2455200.5
(2010-Jan-04.0)
Aphelion 1.6772711 AU
Perihelion 1.3710141 AU
1.5241426 AU
Eccentricity 0.1004686
687.2849216d
1.88 yr
1.00058445 Martian years
124.35751°
Inclination 31.29561°
229.08991°
310.53337°
Physical characteristics
Spectral type
S-type asteroid[2]
17.4

(101429) 1998 VF31 is a small asteroid that orbits near Mars's 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 "JPL Small-Body Database Browser". Retrieved December 3, 2009. 
  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".  
  3. ^ Rivkin, Andrew. S.; Binzel, R. P.; Howell, E. S.; Bus, S. J.; Grier, J. A. (October 2003). "Spectroscopy and photometry of Mars Trojans".  

External links

  • NASA JPL Small-Body Database Browser on (101429) 1998 VF31
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