1490 Limpopo
1490 Limpopo, provisional designation 1936 LB, is a carbonaceous–metallic asteroid from the inner regions of the asteroid belt, approximately 18 kilometers in diameter. It was discovered on 14 June 1936, by English-born South African astronomer Cyril Jackson at Johannesburg Observatory in South Africa. It was named for the Limpopo River.
Lightcurve based 3D-model of Limpopo | |
| Discovery | |
|---|---|
| Discovered by | C. Jackson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 14 June 1936 |
| Designations | |
MPC designation | (1490) Limpopo |
Named after | Limpopo River |
Alternative designations | 1936 LB · 1931 BL 1937 WJ · 1937 YK 1947 ND · 1965 OD |
Minor planet category | main-belt · (inner) |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 85.81 yr (31,341 days) |
| Aphelion | 2.7182 AU |
| Perihelion | 1.9869 AU |
Semi-major axis | 2.3525 AU |
| Eccentricity | 0.1554 |
Orbital period (sidereal) | 3.61 yr (1,318 days) |
Mean anomaly | 63.865° |
Mean motion | 0° 16m 23.16s / day |
| Inclination | 10.020° |
Longitude of ascending node | 254.27° |
| 90.817° | |
| Physical characteristics | |
| Dimensions | 14.844±0.112 16.358±0.045 km 18.55 km (derived) 18.58±1.4 km 19.35±0.27 km 20.21±0.36 km |
Synodic rotation period | 6.15±0.1 h 6.426±0.003 h 6.647±0.004 h |
| 0.068±0.011 0.069±0.003 0.0742 (derived) 0.0811±0.014 0.1048±0.0332 | |
| SMASS = Xc · M · X | |
| 11.33±0.82 · 12.0 · 12.1 | |
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