11118 Modra
| Discovery | |
|---|---|
| Discovered by |
A. Galád D. Kalmančok |
| Discovery site | Modra Obs. |
| Discovery date | 9 August 1996 |
| Designations | |
| MPC designation | 11118 Modra |
|
Named after
|
Modra (town and observatory) |
| 1996 PK · 1991 FL1 | |
| main-belt · Flora | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 25.23 yr (9,216 days) |
| Aphelion | 2.5049 AU |
| Perihelion | 2.1221 AU |
| 2.3135 AU | |
| Eccentricity | 0.0827 |
| 3.52 yr (1,285 days) | |
| 83.483° | |
| 0° 16m 48.36s / day | |
| Inclination | 3.0328° |
| 7.4695° | |
| 204.53° | |
| Physical characteristics | |
| Dimensions | 3.74 km (calculated) 8.69±3.13 km |
|
27.12±0.02 h 27.1481±0.0409 h |
|
|
0.054±0.105 0.24 (assumed) |
|
| S · C | |
| 14.3 · 14.211±0.005 (R) · 14.17±0.36 · 14.10 | |
11118 Modra, provisional designation 1996 PK, is a Flora asteroid of uncertain composition from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 9 August 1996, by Slovak astronomers Adrián Galád and Dušan Kalmančok at the Modra Observatory in Slovakia.
It is a member of the Flora family, one of the largest orbital groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 2.1–2.5 AU once every 3 years and 6 months (1,285 days). Its orbit has an eccentricity of 0.08 and an inclination of 3° with respect to the ecliptic. The first precovery was taken at ESO's La Silla Observatory in 1991, extending the asteroid's observation arc by 5 years prior to its discovery.
In September 2010, a photometric light-curve analysis by American astronomer Brian Warner at his U.S. Palmer Divide Observatory in Colorado, rendered an unambiguous period of 27.12±0.02 hours with a brightness variation of 0.53 in magnitude (U=3). A second light-curve obtained from the wide-field survey at the U.S. Palomar Transient Factory in August 2010, gave a period of 27.1481±0.0409 hours with an amplitude of 0.42 (U=2).
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