3635 Kreutz
3635 Kreutz, provisional designation 1981 WO1, is a slowly rotating Hungaria asteroid and Mars-crosser from the innermost regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 21 November 1981, by Czech astronomer Luboš Kohoutek at the Calar Alto Observatory in southern Spain.
| Discovery | |
|---|---|
| Discovered by | L. Kohoutek |
| Discovery site | Calar Alto Obs. |
| Discovery date | 21 November 1981 |
| Designations | |
MPC designation | (3635) Kreutz |
Named after | Heinrich Kreutz (German astronomer) |
Alternative designations | 1981 WO1 |
Minor planet category | Mars-crosser · Hungaria |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 34.61 yr (12,641 days) |
| Aphelion | 1.9461 AU |
| Perihelion | 1.6434 AU |
Semi-major axis | 1.7947 AU |
| Eccentricity | 0.0843 |
Orbital period (sidereal) | 2.40 yr (878 days) |
Mean anomaly | 273.37° |
Mean motion | 0° 24m 35.64s / day |
| Inclination | 19.223° |
Longitude of ascending node | 235.35° |
| 249.10° | |
| Physical characteristics | |
| Dimensions | 2.94±0.59 km 3.41 km (calculated) |
Synodic rotation period | 39±2 h (dated) 280±5 h |
| 0.20 (assumed) 0.269±0.108 | |
| SMASS = S | |
| 14.7 | |
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