1284 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) |
| 1933 OP · 1925 WK 1931 DW · 1933 QP 1950 RL |
|
| 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 |
| 2.6459 AU | |
| Eccentricity | 0.1704 |
| 4.30 yr (1,572 days) | |
| 78.834° | |
| 0° 13m 44.4s / day | |
| Inclination | 10.874° |
| 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 |
|
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 | |
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.
Latvia is classified as a rare T and L type asteroid in the Tholen and SMASS taxonomy scheme, respectively, both indicating a featureless spectra of a dark and reddish body. It orbits the Sun at a distance of 2.2–3.1 AU once every 4 years and 4 months (1,572 days). Its orbit has an eccentricity of 0.17 and an inclination of 11° with respect to the ecliptic.Latvia was first identified as 1925 WK at Moscow Observatory (105) in 1925, and then as 1931 DW at Lowell Observatory in 1931. The body's observation arc begins with its official discovery observation at Heidelberg in 1933.
The so-far best rated rotational light curve of Latvia was obtained by the "Spanish Photometric Asteroid Analysis Group" (OBAS) in September 2015. Light curve analysis gave it a rotation period of 9.55 hours with a brightness variation of 0.23 magnitude (U=3-). Previous photometric observations by James Brinsfield at Via Capote Observatory (G69) and French amateur astronomer Laurent Bernasconi gave a period of 9.552 and 9.644 hours with an amplitude of 0.10 and 0.21 magnitude, respectively (U=2/2). The first rotational light curve obtained by Richard P. Binzel in the 1980s gave a twice a long period solution of 18 hours (U=1).
...
Wikipedia