2143 Jimarnold

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Jimarnold
Discovery
Discovered by E. F. Helin
Discovery site Palomar
Discovery date 26 September 1973
Designations
MPC designation 2143
Named after
Jim Arnold
1973 SA
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 60.92 yr (22252 days)
Aphelion 2.8145774 AU (421.05479 Gm)
Perihelion 1.7478088 AU (261.46847 Gm)
2.281193 AU (341.2616 Gm)
Eccentricity 0.2338181
3.45 yr (1258.5 d)
99.66807°
0° 17m 9.825s / day
Inclination 8.363834°
17.42164°
352.05516°
Earth MOID 0.746246 AU (111.6368 Gm)
Jupiter MOID 2.64096 AU (395.082 Gm)
Jupiter Tisserand parameter 3.555
Physical characteristics
13.7

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,[2] 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. Its symbol is ‽ (the interrobang).

References[edit]

  1. ^ "2143 Jimarnold (1973 SA)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 15 April 2016. 
  2. ^ Schmadel, Lutz D. (2003). Dictionary of minor planet names (5th rev. & enl. ed.). Berlin: Springer. p. 174. ISBN 3-540-00238-3. 

External links[edit]