9950 ESA

9950 ESA
Animated orbit of 9950 ESA
Discovery [1]
Discovered byC. Pollas
Discovery siteCaussols Obs. (010)
Discovery date8 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 arc26.90 yr (9,824 days)
Aphelion3.7367 AU
Perihelion1.1391 AU
2.4379 AU
Eccentricity0.5328
3.81 yr (1,390 days)
17.795°
0° 15m 32.04s / day
Inclination14.597°
253.51°
103.57°
Earth MOID0.2806 AU · 109.3 LD
Physical characteristics
Dimensions1.71 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]

  1. ^ a b c d Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Harris-1991 was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference lcdb was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Stephens-2014d was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Vaduvescu-2017 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Warner-2014b was invoked but never defined (see the help page).


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