1116 Catriona

1116 Catriona (prov. designation: 1929 GD) is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 39 kilometers (24 miles) in diameter. It was discovered on 5 April 1929, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was probably named after the 1893-novel Catriona by Robert Louis Stevenson.

1116 Catriona
Shape model of Catriona from its lightcurve
Discovery
Discovered byC. Jackson
Discovery siteJohannesburg Obs.
Discovery date5 April 1929
Designations
MPC designation
(1116) Catriona
Named after
Catriona (novel by
Robert Louis Stevenson)
Alternative designations
1929 GD · 1926 RQ
A908 AC
Minor planet category
Orbital characteristics
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc109.01 yr (39,815 days)
Aphelion3.5946 AU
Perihelion2.2522 AU
Semi-major axis
2.9234 AU
Eccentricity0.2296
Orbital period (sidereal)
5.00 yr (1,826 days)
Mean anomaly
348.27°
Mean motion
0° 11m 49.92s / day
Inclination16.523°
Longitude of ascending node
356.52°
82.666°
Physical characteristics
Dimensions36.71±0.53 km
38.741±0.281 km
39.02 km (derived)
39.04 km
39.12±0.7 km
41.010±0.396 km
Synodic rotation period
8.83±0.01 h
8.832 h
10.49 h
12.06 h
0.1395 (derived)
0.1397±0.0214
0.1419
0.1522±0.006
0.155±0.025
0.175±0.006
C
9.70 · 9.78 · 9.8
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