1622 Chacornac
1622 Chacornac (provisional designation 1952 EA) is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 15 March 1952, by French astronomer Alfred Schmitt at the Royal Observatory of Belgium in Uccle, and named after astronomer Jean Chacornac.
| Discovery | |
|---|---|
| Discovered by | A. Schmitt |
| Discovery site | Uccle Obs. |
| Discovery date | 15 March 1952 |
| Designations | |
MPC designation | (1622) Chacornac |
Named after | Jean Chacornac (astronomer) |
Alternative designations | 1952 EA · 1932 DD 1933 UX · 1939 KE 1942 EB1 · 1949 KF 1952 DP2 · 1953 TM1 |
Minor planet category | main-belt · Flora |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 85.94 yr (31,388 days) |
| Aphelion | 2.5989 AU |
| Perihelion | 1.8705 AU |
Semi-major axis | 2.2347 AU |
| Eccentricity | 0.1630 |
Orbital period (sidereal) | 3.34 yr (1,220 days) |
Mean anomaly | 146.41° |
Mean motion | 0° 17m 42s / day |
| Inclination | 6.4607° |
Longitude of ascending node | 4.3644° |
| 256.53° | |
| Physical characteristics | |
| Dimensions | 8.43±0.32 km 9.85 km (calculated) 10.27±0.65 km |
Synodic rotation period | 11.485±0.006 h 12.2044±0.0041 h 12.206±0.002 h 12.2190±0.0116 h |
| 0.224±0.030 0.24 (assumed) 0.360±0.042 | |
| S | |
| 11.954±0.001 (R) · 12.040±0.001 (R) · 12.04±1.25 · 12.10 · 12.2 | |
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