1284 Latvia
| Discovery [1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 27 July 1933 |
| Designations | |
| MPC designation | 1284 Latvia |
Named after |
Latvia (Republic of Latvia)[2] |
|
1933 OP · 1925 WK 1931 DW · 1933 QP 1950 RL | |
| main-belt · (middle) [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 82.60 yr (30170 days) |
| Aphelion | 3.0960 AU (463.16 Gm) |
| Perihelion | 2.1947 AU (328.32 Gm) |
| 2.6453 AU (395.73 Gm) | |
| Eccentricity | 0.17036 |
| 4.30 yr (1571.5 d) | |
| 33.096° | |
| 0° 13m 44.688s / day | |
| Inclination | 10.876° |
| 302.96° | |
| 114.32° | |
| Earth MOID | 1.2316 AU (184.24 Gm) |
| Jupiter MOID | 2.28869 AU (342.383 Gm) |
| Jupiter Tisserand parameter | 3.347 |
| Physical characteristics | |
| Dimensions |
36.81 km[4] 41.47±0.52 km[5] 47.255±0.627 km[6] 45.19±0.74 km[7] |
Mean radius | 18.405±0.6 km |
|
9.644 h[8] 18 h[9] 9.552±0.001 h[10] 9.55 h (0.398 d)[1] | |
|
0.1045[4] 0.083±0.003[5] 0.0634±0.0058[6] 0.069±0.011[7] 0.1045±0.007[1] | |
|
B–V = 0.768 U–B = 0.353 T (Tholen), L (SMASS) L [3] | |
| 10.24 | |
|
| |
1284 Latvia, provisional designation 1933 OP, is a dark asteroid with a rare reddish spectral type from the middle region of the asteroid belt, about 37 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany on 27 July 1933.[11]
The asteroid is classified as a rare T-type and L-type 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 shows an eccentricity of 0.17 and is tilted by 11 degrees to the plane of the ecliptic. It has a rotation period of 9.6 hours.[8] According to the surveys carried out by the Infrared Astronomical Satellite, IRAS, the Japanese Akari satellite, and the Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, it has a geometric albedo that lies between 0.06 and 0.10.[4][5][6][7]
The minor planet is named after the Republic of Latvia.[2]
References
- 1 2 3 4 "JPL Small-Body Database Browser: 1284 Latvia (1933 OP)" (2015-10-20 last obs.). Jet Propulsion Laboratory. Retrieved 28 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1284) Latvia. Springer Berlin Heidelberg. p. 106. ISBN 978-3-540-29925-7. Retrieved 23 November 2015.
- 1 2 "LCDB Data for (1284) Latvia". Asteroid Lightcurve Database (LCDB). Retrieved 23 November 2015.
- 1 2 3 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. Bibcode:2004PDSS...12.....T. Retrieved 23 November 2015.
- 1 2 3 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 23 November 2015.
- 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407
. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 23 November 2015. - 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 23 November 2015.
- 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1284) Latvia". Geneva Observatory. Retrieved 23 November 2015.
- ↑ Binzel, R. P.; Mulholland, J. D. (December 1983). "A photoelectric lightcurve survey of small main belt asteroids". Icarus: 519–533. Bibcode:1983Icar...56..519B. doi:10.1016/0019-1035(83)90170-7. ISSN 0019-1035. Retrieved 23 November 2015.
- ↑ Brinsfield, James W. (September 2008). "Asteroid Lightcurve Analysis at the Via Capote Observatory: First Quarter 2008". The Minor Planet Bulletin. 35 (3): 119–122. Bibcode:2008MPBu...35..119B. ISSN 1052-8091. Retrieved 23 November 2015.
- ↑ "1284 Latvia (1933 OP)". Minor Planet Center. Retrieved 23 November 2015.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1284 Latvia at the JPL Small-Body Database
