Astronomy:21436 Chaoyichi
From HandWiki
| Discovery | |
|---|---|
| Discovered by | LINEAR |
| Discovery site | Lincoln Lab ETS |
| Discovery date | 31 March 1998 |
| Designations | |
| (21436) Chaoyichi | |
| 1998 FL116 | |
| Minor planet category | main-belt · background |
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 9565 days (26.19 yr) |
| |{{{apsis}}}|helion}} | 2.3725454 astronomical unit|AU (354.92774 Gm) |
| |{{{apsis}}}|helion}} | 2.0008870 AU (299.32843 Gm) |
| 2.186716 AU (327.1281 Gm) | |
| Eccentricity | 0.0849810 |
| Orbital period | 3.23 yr (1181.1 d) |
| Mean anomaly | 226.1171° |
| Mean motion | 0° 18m 17.281s / day |
| Inclination | 3.736916° |
| Longitude of ascending node | 320.37494° |
| 178.30874° | |
| Known satellites | 1[1] |
| Physical characteristics | |
| Mean diameter | 1.953±0.256 km[2] |
| Rotation period | 2.87 h[2][3] |
| Geometric albedo | 0.222±0.062[2] |
| Absolute magnitude (H) | 15.4[2] |
21436 Chaoyichi (provisional designation 1998 FL116) is a background asteroid and binary system[1] from the inner region of the asteroid belt, approximately 2 kilometers in diameter. It was discovered on 31 March 1998, by astronomers of the Lincoln Near-Earth Asteroid Research at Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, United States.[2]
References
- ↑ 1.0 1.1 Wm. Robert Johnston (31 December 2015). "Asteroids with Satellites". http://www.johnstonsarchive.net/astro/asteroidmoons.html#1. Retrieved 15 January 2016.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "21436 Chaoyichi (1998 FL116)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=21436;cad=1.
- ↑ Pravec, P. et al. (2010). "Formation of asteroid pairs by rotational fission". Nature (466): 1085–1088. (Lightcurve plots as supplemental data)
External links
- Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
- 21436 Chaoyichi at AstDyS-2, Asteroids—Dynamic Site
- 21436 Chaoyichi at the JPL Small-Body Database
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