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| Discovery A | |
|---|---|
| Discoverer | Eleanor F. Helin R. Scott Dunbar |
| Discovery date | November 4, 1981 |
| Alternate designations B |
1981 VA |
| Category | Apollo, Mars crosser |
| Orbital elements C | |
|
|
|
| Eccentricity (e) | 0.743 |
| Semi-major axis (a) | 369.174 Gm (2.468 AU) |
| Perihelion (q) | 94.745 Gm (0.633 AU) |
| Aphelion (Q) | 643.603 Gm (4.302 AU) |
| Orbital period (P) | 1415.980 d (3.88 a) |
| Mean orbital speed | 15.981 km/s |
| Inclination (i) | 21.426° |
| Longitude of the ascending node (Ω) |
244.046° |
| Argument of perihelion (ω) |
62.026° |
| Mean anomaly (M) | 95.185° |
| Physical characteristics D | |
| Diameter | 1.8 km |
| Mass | ~8.4×1012 kg |
| Density | 2.0? g/cm³ |
| Surface gravity | ~0.0006 m/s² |
| Escape velocity | ~0.0011 km/s |
| Rotation period | ? d |
| Spectral class | ? |
| Absolute magnitude | 16.3 |
| Albedo (geometric) | 0.17 |
| Mean surface temperature |
~174 K |
(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.
See also
References
- NeoDys
- NASA JPL Small-Body Database Browser on 3360 Syrinx
- JPL Horizons; telnet version is more comprehensive
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This Near-Earth asteroid-related article is a stub. You can help Wikipedia by expanding it. |
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Wikipedia content modification information:
- This page was last modified on 27 May 2008, at 08:21.
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