(12538) 1998 OH
| Discovery and designation | |
|---|---|
| Discovered by | NEAT |
| Discovery date | 1998-07-19 |
| Designations | |
| none | |
|
Apollo NEO, PHA[1] | |
| Orbital characteristics | |
| Epoch 31 December 2006 (JD 2454100.5) | |
| Aphelion | 324.262 Gm (2.168 AU) |
| Perihelion | 136.964 Gm (0.916 AU) |
| 230.613 Gm (1.542 AU) | |
| Eccentricity | 0.406 |
| 699.095 day (1.91 a) | |
Average orbital speed | 22.97 km/s |
| 209.975° | |
| Inclination | 24.515° |
| 220.817° | |
| 321.621° | |
| Physical characteristics | |
| Dimensions | ~3 km |
| Mass | ~2.8×1013 kg |
Mean density | 2.0? g/cm³ |
Equatorial surface gravity | ~0.0008 m/s² |
Equatorial escape velocity | ~0.0016 km/s |
Sidereal rotation period | ? d |
| ?° | |
Pole ecliptic latitude | ? |
Pole ecliptic longitude | ? |
| 0.10? | |
| Temperature | ~224 K |
| ? | |
| 16.1 | |
|
| |
(12538) 1998 OH is an earth-crosser asteroid that was discovered in 1998. It has a diameter of 2-4 kilometers,[2] and will pass close to Earth in 2042 and 2132.[1]
References
- ↑ 1.0 1.1 "JPL Close-Approach Data: 12538 (1998 OH)" (last obs: arc=21 years). 2012-12-15. Retrieved 2013-01-05.
- ↑ 12538 1998 OH in the EARN Near-Earth Asteroids Data Base
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