Mars trojan
The Mars trojans are a group of
Presently, this group contains 17 asteroids confirmed to be stable Mars trojans by long-term numerical simulations but only nine of them are accepted by the Minor Planet Center.[7][3][4][8][9][10][11]
Due to close orbital similarities, most of the smaller members of the L5 group are hypothesized to be fragments of Eureka that were detached after it was spun up by the YORP effect (Eureka's rotational period is 2.69 h). The L4 trojan 1999 UJ7 has a much longer rotational period of ~50 h, apparently due to a chaotic rotation that prevents YORP spinup.[12] The spectrum of 121514 show a certain resemblance to that of 2023 FW14 and a common origin cannot be discarded.[13] The spectra of 121514 and 2023 FW14 are very different from those of the Eureka asteroid family members.
Designation | Cloud | Semimajor axis (AU) |
Perihelion (AU) |
Eccentricity | Inclination (°) |
(H) | Diameter ( m )
|
---|---|---|---|---|---|---|---|
5261 Eureka | L5 | 1.52356 | 1.42477 | 0.06484 | 20.2820 | 16.13 | 1880±230 |
(101429) 1998 VF31 | L5 | 1.52429 | 1.37150 | 0.10024 | 31.2987 | 17.26 | 1210+890 −350 |
(121514) 1999 UJ7 | L4 | 1.52455 | 1.46491 | 0.03912 | 16.7493 | 17.19 | 2450±490 |
(311999) 2007 NS2 | L5 | 1.52379 | 1.44155 | 0.05397 | 18.6194 | 18.18 | 790+580 −230 |
(385250) 2001 DH47 | L5 | 1.52385 | 1.47111 | 0.03461 | 24.4006 | 18.89 | 570+420 −170 |
2009 SE | L5 | 1.52451 | 1.42524 | 0.06512 | 20.6263 | 19.9 | 360+260 −110 |
2011 SL25 | L5 | 1.52391 | 1.34938 | 0.11453 | 21.4953 | 19.5 | 430+320 −120 |
2011 SP189 | L5 | 1.52386 | 1.46247 | 0.04029 | 19.8994 | 20.9 | 230+160 −70 |
2011 SC191 | L5 | 1.52390 | 1.45678 | 0.04405 | 18.7451 | 19.4 | 450+330 −130 |
2011 UN63 | L5 | 1.52378 | 1.42521 | 0.06469 | 20.3635 | 19.7 | 390+290 −110 |
2011 UB256 | L5 | 1.52370 | 1.41550 | 0.07101 | 24.3023 | 19.9 | 360+260 −110 |
2016 AA165 | L5 | 1.52299 | 1.38650 | 0.08962 | 18.7202 | 20.39 | 290+210 −90 |
2016 CP31 | L5 | 1.52365 | 1.43425 | 0.05867 | 23.1314 | 19.4 | 450+330 −130 |
2018 EC4 | L5 | 1.52365 | 1.43138 | 0.06056 | 21.8362 | 20.0 | 340+250 −100 |
2018 FC4 | L5 | 1.52388 | 1.49781 | 0.01711 | 22.1466 | 21.2 | 200+140 −60 |
2018 FM29 | L5 | 1.52391 | 1.45196 | 0.04722 | 21.5004 | 21.11 | 210+150 −60 |
2023 FW14 | L4 | 1.52377 | 1.28284 | 0.15811 | 13.27271 | 21.59 | 318+493 −199 |
See also
- Trojan (celestial body)
- Minor planets that orbit near trojan points
References
- S2CID 15118710.
- S2CID 16618044.
- ^ .
- ^ S2CID 254375599.
- .
- S2CID 119432820.
- ^ "List Of Martian Trojans". Minor Planet Center. Retrieved 2021-01-12.
- .
- S2CID 119186791.
- S2CID 224814529.
- .
- .
- doi:10.1051/0004-6361/202449688.)
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