(12538) 1998 OH

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(12538) 1998 OH
Discovery[1] and designation
Discovered by NEAT
Discovery date 1998-07-19
Designations
none
Minor planet category Apollo NEO,
PHA[1]
Orbital characteristics[2]
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)
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
? d
?
?
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[edit]

  1. ^ a b "JPL Close-Approach Data: 12538 (1998 OH)" (last obs: arc=21 years). 2012-12-15. Retrieved 2013-01-05. 
  2. ^ 12538 1998 OH in the EARN Near-Earth Asteroids Data Base