(9921) 1981 EO18

(9921) 1981 EO18

Orbit of (9921) 1981 EO18 (blue), planets (red) and the Sun (black). The outermost planet visible is Jupiter.
Discovery
Discovered by S. J. Bus
Discovery date 2 March 1981
Designations
MPC designation (9921) 1981 EO18
Main Belt asteroid
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 22681 days (62.10 yr)
Aphelion 2.5184972 AU (376.76182 Gm)
Perihelion 2.2347981 AU (334.32104 Gm)
2.3766477 AU (355.54144 Gm)
Eccentricity 0.0596847
3.66 yr (1338.3 d)
289.85012°
 16m 8.41s / day
Inclination 2.401065°
331.39626°
89.15014°
Earth MOID 1.24767 AU (186.649 Gm)
Jupiter MOID 2.65114 AU (396.605 Gm)
Jupiter Tisserand parameter 3.537
Physical characteristics
Dimensions ~12.3 km[2]
8.01 h (0.334 d)
~0.01
Surface temp. min mean max
Kelvin
Celsius
14.3

    (9921) 1981 EO18 is a main belt asteroid. It orbits the Sun once every 3.67 years.[1]

    Discovered on March 2, 1981, by Schelte Bus at the Siding Spring Observatory, it was given the provisional designation "1981 EO18".[3]

    References

    1. 1 2 "9921 Rubincam (1981 EO18)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 13 April 2016.
    2. Tedesco E.F.; Noah P.V.; Noah M.; Price S.D. "The supplemental IRAS minor planet survey (SIMPS)".
    3. (9921) 1981 EO18 Minor Planet Center's Minor Planet Ephemeris Service

    External links


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