9921 Rubincam
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| 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° | |||||||||||||
| 0° 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 | |||||||||||||
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| 14.3 | |||||||||||||
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(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 2 "9921 Rubincam (1981 EO18)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 13 April 2016.
- ↑ Tedesco E.F.; Noah P.V.; Noah M.; Price S.D. "The supplemental IRAS minor planet survey (SIMPS)".
- ↑ (9921) 1981 EO18 Minor Planet Center's Minor Planet Ephemeris Service
External links
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