Jump to content

21436 Chaoyichi

From Wikipedia, the free encyclopedia
(Redirected from Chaoyichi)

21436 Chaoyichi
Discovery
Discovered byLINEAR
Discovery siteLincoln Lab ETS
Discovery date31 March 1998
Designations
(21436) Chaoyichi
1998 FL116
main-belt · background
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc9565 days (26.19 yr)
Aphelion2.3725454 AU (354.92774 Gm)
Perihelion2.0008870 AU (299.32843 Gm)
2.186716 AU (327.1281 Gm)
Eccentricity0.0849810
3.23 yr (1181.1 d)
226.1171°
0° 18m 17.281s / day
Inclination3.736916°
320.37494°
178.30874°
Known satellites1[2]
Physical characteristics
1.953±0.256 km[1]
2.87 h[1][3]
0.222±0.062[1]
15.4[1]

21436 Chaoyichi (provisional designation 1998 FL116) is a background asteroid and binary system[2] 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.[1]

References

[edit]
  1. ^ a b c d e f "21436 Chaoyichi (1998 FL116)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 April 2016.
  2. ^ a b Wm. Robert Johnston (31 December 2015). "Asteroids with Satellites". JohnstonArchive.net. Retrieved 15 January 2016.
  3. ^ Pravec, P.; Vokrouhlicky, D.; Polishook, D.; Scheeres, D.J.; et al. (2010). "Formation of asteroid pairs by rotational fission". Nature. 466 (7310): 1085–1088. arXiv:1009.2770. Bibcode:2010Natur.466.1085P. doi:10.1038/nature09315. PMID 20740010. (Lightcurve plots as supplemental data)
[edit]