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Orbit of (9948) 1990 QB2
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Discovery and designation
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| Discovered by | H. E. Holt | |||||||||
| Discovery date | August 22, 1990 | |||||||||
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Designations
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| MPC designation | (9948) 1990 QB2 | |||||||||
| Alternate name(s) | 1979 SJ6, 1990 SQ26 | |||||||||
| Epoch October 27, 2007 | ||||||||||
| Ap | 2.8987435 AU | |||||||||
| Peri | 1.8687523 AU | |||||||||
| Semi-major axis | 2.3837479 AU | |||||||||
| Eccentricity | 0.2160445 | |||||||||
| Orbital period | 1344.2774445 d | |||||||||
| Mean anomaly | 250.71412° | |||||||||
| Inclination | 2.09158° | |||||||||
| Longitude of ascending node | 171.73950° | |||||||||
| Argument of peri | 151.23916° | |||||||||
| Dimensions | ~17km[1] | |||||||||
| Sidereal rotation period |
3.532 h | |||||||||
| Geometric albedo | ~0.01 | |||||||||
| Surface temp. Kelvin Celsius |
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| Spectral type | S-type asteroid[2] | |||||||||
| Absolute magnitude (H) | 14.5 | |||||||||
(9948) 1990 QB2 is an S-type main belt asteroid. It orbits the Sun once every 3.68 years.[3]
Discovered on August 22, 1990 by H. E. Holt, it was given the provisional designation "1990 QB2".[4]
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