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Discovery and designation
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| Discovered by | S. Otomo | |||||||||
| Discovery date | November 4, 1991 | |||||||||
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Designations
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| Alternate name(s) | 1991 VE4, 1978 WD, 1981 QZ1, 1988 YX, 1994 PG38 | |||||||||
| Epoch October 27, 2007 | ||||||||||
| Ap | 2.6105463 AU | |||||||||
| Peri | 1.7851043 AU | |||||||||
| Semi-major axis | 2.1978253 AU | |||||||||
| Eccentricity | 0.1877861 | |||||||||
| Orbital period | 1190.1129384 d | |||||||||
| Mean anomaly | 0.44667° | |||||||||
| Inclination | 4.83524° | |||||||||
| Longitude of ascending node | 147.17279° | |||||||||
| Argument of peri | 205.67328° | |||||||||
| Surface temp. Kelvin Celsius |
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| Absolute magnitude (H) | 14.4 | |||||||||
9960 Sekine is a main belt asteroid. It orbits the Sun once every 3.26 years.[1]
Discovered on November 4, 1991 by S. Otomo it was given the provisional name "1991 VE4". It was later renamed "Sekine" after Masumi Sekine, the president of Ageo city's astronomical society.[2]
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