|
Discovery[1] and designation
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Discovered by | C.J. van Houten, I. van Houten-Groeneveld & T. Gehrels | |||||||||
| Discovery date | March 25, 1971 | |||||||||
|
Designations
|
||||||||||
| Named after | Cosmic Background Explorer | |||||||||
| Alternate name(s) | 1217 T-1, 1969 UJ, 1989 SW11, 1991 EZ3 | |||||||||
| Epoch October 27, 2007 | ||||||||||
| Ap | 2.8355877 AU | |||||||||
| Peri | 2.2551011 AU | |||||||||
| Semi-major axis | 2.5453444 AU | |||||||||
| Eccentricity | 0.1140291 | |||||||||
| Orbital period | 1483.2632897 d | |||||||||
| Mean anomaly | 108.60988° | |||||||||
| Inclination | 2.46241° | |||||||||
| Longitude of ascending node | 335.59647° | |||||||||
| Argument of peri | 90.30224° | |||||||||
| Surface temp. Kelvin Celsius |
|
|||||||||
| Absolute magnitude (H) | 13.7 | |||||||||
9997 COBE is a main belt asteroid. It orbits the Sun once every 4.06 years.
Discovered on March 25, 1971 by C. J. van Houten and I. van Houten-Groeneveld in archival data produced by T. Gehrels, it was given the provision designation 1217 T-1. It was later renamed 9997 COBE in honour of the Cosmic Background Explorer.[2]
|
|
|||||
|
||||||||||||||||||||||