Discovery[1] | |
---|---|
Discovered by | C. S. Shoemaker E. M. Shoemaker D. H. Levy |
Discovery site | Palomar Obs. |
Discovery date | 2 November 1989 |
Designations | |
(99907) 1989 VA | |
NEO · Aten[1][2] · Mercury-grazer · Venus-crosser · Earth-crosser | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 26.16 yr (9,555 days) |
Aphelion | 1.1616 AU |
Perihelion | 0.2952 AU |
0.7284 AU | |
Eccentricity | 0.5947 |
0.62 yr (227 days) | |
79.277° | |
1° 35m 7.44s / day | |
Inclination | 28.801° |
225.60° | |
2.8461° | |
Earth MOID | 0.1552 AU · 60.5 LD |
Physical characteristics | |
Dimensions | 0.547 km (derived)[3] 0.55±0.06 km[4] 1.4 km[1] |
2.514 h[5] | |
0.3718 (derived)[3] 0.40±0.30[4] | |
SMASS = Sq[1] · S[3] | |
17.9[1] | |
(99907) 1989 VA (provisional designation 1989 VA) is a very eccentric, stony asteroid and near-Earth object, approximately 1 kilometer in diameter. It was discovered on 2 November 1989, by American astronomer couple Carolyn and Eugene Shoemaker and Canadian astronomer David Levy at the Palomar Observatory on Mount Palomar, California.[2]
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