3360 Syrinx
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(Redirected from (3360) 1981 VA)
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Discovery
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| Discovered by | Eleanor F. Helin R. Scott Dunbar |
| Discovery date | November 4, 1981 |
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Designations
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| Named after | Syrinx |
| Alternate name(s) | 1981 VA |
| Minor planet category |
Apollo, Mars crosser |
| Epoch November 26, 2005 (JD 2453700.5) | |
| Aphelion | 643.603 Gm (4.302 AU) |
| Perihelion | 94.745 Gm (0.633 AU) |
| Semi-major axis | 369.174 Gm (2.468 AU) |
| Eccentricity | 0.743 |
| Orbital period | 1415.980 d (3.88 a) |
| Average orbital speed | 15.981 km/s |
| Mean anomaly | 95.185° |
| Inclination | 21.426° |
| Longitude of ascending node | 244.046° |
| Argument of perihelion | 62.026° |
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Physical characteristics
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| Dimensions | 1.8 km |
| Mass | ~8.4×1012 kg |
| Mean density | 2.0? g/cm³ |
| Equatorial surface gravity | ~0.0006 m/s² |
| Escape velocity | ~0.0011 km/s |
| Rotation period | ? d |
| Albedo | 0.17 |
| Temperature | ~174 K |
| Spectral type | ? |
| Absolute magnitude (H) | 16.3 |
(3360) Syrinx (originally designated 1981 VA) is an Apollo and Mars crosser asteroid discovered in 1981. It approaches Earth to within 40 Gm three times in the 21st century: 33 Gm in 2039, 40 Gm in 2070, and 24 Gm in 2085.
For a time, it was the lowest numbered asteroid that had not been named. Since November 2006, this distinction has been held by (3708) 1974 FV1.
[edit] See also
[edit] References
- NeoDys
- NASA JPL Small-Body Database Browser on 3360 Syrinx
- JPL Horizons; telnet version is more comprehensive
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