![]() Animated orbit of 9950 ESA | |
Discovery [1] | |
---|---|
Discovered by | C. Pollas |
Discovery site | Caussols Obs. (010) |
Discovery date | 8 November 1990 |
Designations | |
(9950) ESA | |
Named after | European Space Agency [2] |
1990 VB | |
NEO · Amor [1][3][4] Mars-crosser | |
Orbital characteristics [1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 26.90 yr (9,824 days) |
Aphelion | 3.7367 AU |
Perihelion | 1.1391 AU |
2.4379 AU | |
Eccentricity | 0.5328 |
3.81 yr (1,390 days) | |
17.795° | |
0° 15m 32.04s / day | |
Inclination | 14.597° |
253.51° | |
103.57° | |
Earth MOID | 0.2806 AU · 109.3 LD |
Physical characteristics | |
Dimensions | 1.71 km (calculated)[5] 3 km (estimated)[4]: 21 |
6.707±0.002 h[6][a] 6.7078±0.0007 h[7] 6.712±0.005 h[8][b] | |
0.20 (assumed)[5] | |
S (assumed)[5] | |
16.2[1][5] | |
9950 ESA, provisional designation 1990 VB, is an eccentric asteroid and elongated near-Earth object of the Amor group, approximately 1.7 kilometers in diameter. It was discovered on 8 November 1990, by French astronomer Christian Pollas at the Centre de recherches en géodynamique et astrométrie (Cerga) at Caussols in southeastern France.[3] It was named for the European Space Agency (ESA).[2]
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