(12538) 1998 OH

From Wikipedia, the free encyclopedia
Jump to: navigation, search
(12538) 1998 OH
Discovery[1]
Discovered by NEAT
Discovery date 19 July 1998
Designations
none
Apollo NEO,
PHA[1]
Orbital characteristics[2][1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 8511 days (23.30 yr)
Aphelion 2.16745 AU (324.246 Gm)
Perihelion 0.915558 AU (136.9655 Gm)
1.54150 AU (230.605 Gm)
Eccentricity 0.40606
1.91 yr (699.06 d)
22.97 km/s
109.340°
0° 30m 53.914s / day
Inclination 24.5264°
220.753°
321.702°
Earth MOID 0.0294426 AU (4.40455 Gm)
Jupiter MOID 2.90027 AU (433.874 Gm)
Jupiter Tisserand parameter 4.281
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
5.833 h (0.2430 d)
? d
?
?
0.10?
Temperature ~224 K
?
15.8

(12538) 1998 OH is an earth-crosser asteroid that was discovered in 1998. It has a diameter of 2-4 kilometers,[3] and will pass close to Earth in 2042 and 2132.[1]

References[edit]

  1. ^ a b c "JPL Close-Approach Data: 12538 (1998 OH)" (last obs: arc=21 years). 2012-12-15. Retrieved 12 April 2016. 
  2. ^ "The Asteroid Orbital Elements Database". astorb. Lowell Observatory. 
  3. ^ 12538 1998 OH in the EARN Near-Earth Asteroids Data Base

External links[edit]