2143 Jimarnold

2143 Jimarnold
Discovery [1]
Discovered byE. F. Helin
Discovery sitePalomar Obs.
Discovery date26 September 1973
Designations
(2143) Jimarnold
Named after
James R. Arnold [2]
(American chemist)
1973 SA · 1980 VZ1
main-belt · (inner)
background [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc62.13 yr (22,693 d)
Aphelion2.8147 AU
Perihelion1.7468 AU
2.2807 AU
Eccentricity0.2341
3.44 yr (1,258 days)
270.79°
0° 17m 9.96s / day
Inclination8.3651°
17.405°
352.42°
Physical characteristics
Dimensions4.934±0.145 km[4]
0.138±0.017[4]
13.7[1]

2143 Jimarnold, provisional designation 1973 SA, is a background asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 26 September 1973, by astronomer Eleanor Helin at the Palomar Observatory in California, United States.[5] The asteroid was named after American cosmochemist, James R. Arnold.[2]

  1. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference AstDys-object was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference MPC-object was invoked but never defined (see the help page).