Discovery and designation
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Discovered by | E. F. Helin |
Discovery site | Palomar |
Discovery date | September 26, 1973 |
Designations
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MPC designation | 2143 |
Named after | Jim Arnold |
Alternate name(s) | 1973 SA |
Epoch May 14, 2008 | |
Ap | 2.8141381 |
Peri | 1.7476263 |
Eccentricity | 0.2337937 |
Orbital period | 1258.2088077 |
Mean anomaly | 18.48875 |
Inclination | 8.36568 |
Longitude of ascending node | 17.45753 |
Argument of peri | 352.02096 |
Absolute magnitude (H) | 14.3 |
2143 Jimarnold (1973 SA) is a main-belt asteroid discovered on September 26, 1973 by E. F. Helin at Palomar.
This asteroid was named in honor of Dr. James R. Arnold,[1] then director of California Space Science Institute at the University of California, San Diego. Dr. Arnold's research into the motion of small bodies assisted the discovery of several asteroids, which led to this honor.
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