7204 Ondřejov
| Discovery | |
|---|---|
| Discovered by | P. Pravec |
| Discovery site | Ondřejov Obs. |
| Discovery date | 3 April 1995 |
| Designations | |
| MPC designation | 7204 Ondřejov |
|
Named after
|
Ondřejov (town and observatory) |
| 1995 GH · 1980 WM3 | |
| main-belt · (middle) | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 35.26 yr (12,877 days) |
| Aphelion | 2.9931 AU |
| Perihelion | 2.3466 AU |
| 2.6699 AU | |
| Eccentricity | 0.1211 |
| 4.36 yr (1,593 days) | |
| 123.21° | |
| 0° 13m 33.24s / day | |
| Inclination | 4.8613° |
| 172.34° | |
| 235.60° | |
| Physical characteristics | |
| Dimensions |
5.685±0.163 km 6.25 km (calculated) |
| 5.2334±0.0101 h | |
| 0.10 (assumed) 0.181±0.009 |
|
| S | |
| 13.8 · 13.7 · 13.687±0.005 (R) · 13.67±0.19 · 14.14 | |
7204 Ondřejov, provisional designation 1995 GH, is a stony asteroid from the middle region of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 3 April 1995, by Czech astronomer Petr Pravec at Ondřejov Observatory near Prague, Czech Republic. This asteroid was the observatory's first numbered minor planet discovery.
The S-type asteroid orbits the Sun at a distance of 2.3–3.0 AU once every 4 years and 4 months (1,593 days). Its orbit has an eccentricity of 0.12 and an inclination of 5° with respect to the ecliptic. The first precovery was taken at Palomar Observatory in 1980, extending the asteroid's observation arc by 15 years prior to its discovery.
A rotational light-curve was obtained based on a photometric observations at the U.S. Palomar Transient Factory, California, in December 2011. It showed a rotation period of 5.2334±0.0101 hours with a brightness amplitude of 0.55 in magnitude (U=2).
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 5.9 kilometers in diameter and its surface has an albedo of 0.18, while the Collaborative Asteroid Lightcurve Link assumes a lower albedo of 0.10 and calculates a diameter of 6.3 kilometers.
...
Wikipedia