1243 Pamela information

1243 Pamela
Discovery
Discovered by	C. Jackson
Discovery site	Johannesburg Obs.
Discovery date	7 May 1932
Designations
MPC designation	(1243) Pamela
Named after	Pamela Jackson; (discoverer's daughter)
Alternative designations	1932 JE · 1929 XD; 1934 VL · 1951 AN; 1954 JO
Minor planet category	main-belt · (outer); background
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	85.66 yr (31,287 days)
Aphelion	3.2409 AU
Perihelion	2.9512 AU
Semi-major axis	3.0960 AU
Eccentricity	0.0468
Orbital period (sidereal)	5.45 yr (1,990 days)
Mean anomaly	165.56°
Mean motion	0° 10m 51.24s / day
Inclination	13.286°
Longitude of ascending node	245.68°
Argument of perihelion	56.586°
Physical characteristics
Dimensions	66.11±23.05 km; 69.883±0.420 km; 69.991±1.389 km; 70.06 km (derived); 70.07±5.9 km; 70.25±1.00 km; 70.97±20.63 km; 76.42±0.67 km
Synodic rotation period	26.00±0.01 h; 26.0±0.1 h; 26±0.5 h; 26.017±0.003 h
Geometric albedo	0.040±0.005; 0.04±0.02; 0.04±0.06; 0.0474 (derived); 0.048±0.002; 0.0483±0.009; 0.0484±0.0102
Spectral type	C · C (assumed)
Absolute magnitude (H)	9.60 · 9.68 · 9.70 · 9.71 · 9.90±0.29

1243 Pamela, provisional designation 1932 JE, is a carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 70 kilometers in diameter. It was discovered on 7 May 1932, by South African astronomer Cyril Jackson at the Union Observatory in Johnannesburg.^[16] The asteroid was named for Pamela Jackson, daughter of the discoverer.^[2]

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