1284 Latvia
1284 Latvia, provisional designation 1933 OP, is a rare-type asteroid from the middle region of the asteroid belt, approximately 37 kilometers in diameter. It was discovered on 27 July 1933, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany, and named after the Republic of Latvia.
| Discovery | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 27 July 1933 |
| Designations | |
MPC designation | (1284) Latvia |
Named after | Latvia (Republic of Latvia) |
Alternative designations | 1933 OP · 1925 WK 1931 DW · 1933 QP 1950 RL |
Minor planet category | main-belt · (middle) |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 83.45 yr (30,481 days) |
| Aphelion | 3.0967 AU |
| Perihelion | 2.1952 AU |
Semi-major axis | 2.6459 AU |
| Eccentricity | 0.1704 |
Orbital period (sidereal) | 4.30 yr (1,572 days) |
Mean anomaly | 78.834° |
Mean motion | 0° 13m 44.4s / day |
| Inclination | 10.874° |
Longitude of ascending node | 302.96° |
| 114.40° | |
| Physical characteristics | |
| Dimensions | 33.27±7.09 km 36.81±1.2 km (IRAS:18) 41.128±0.457 km 41.47±0.52 km 45.19±0.74 km 47.255±0.627 km |
Synodic rotation period | 9.55±0.01 h 9.552±0.001 h 9.644±0.002 h 18 h |
| 0.0634±0.0058 0.069±0.011 0.083±0.003 0.1045±0.007 (IRAS:18) 0.13±0.06 | |
| B–V = 0.768 U–B = 0.353 T (Tholen), L (SMASS) · L | |
| 10.20±0.17 · 10.23 · 10.24 | |
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