3391 Sinon
| Discovery | |
|---|---|
| Discovered by | Hiroki Kosai and Kiichiro Hurukawa |
| Discovery date | 18 February 1977 |
| Designations | |
Named after | Sinon |
| 1977 DD3 | |
| Jupiter Trojan | |
| Orbital characteristics[1][2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 21977 days (60.17 yr) |
| Aphelion | 5.73907 AU (858.553 Gm) |
| Perihelion | 4.86540 AU (727.853 Gm) |
| 5.30224 AU (793.204 Gm) | |
| Eccentricity | 0.082387 |
| 12.21 yr (4459.51 d) | |
Average orbital speed | 12.92 km/s |
| 135.426° | |
| 0° 4m 50.615s / day | |
| Inclination | 14.8699° |
| 341.136° | |
| 103.544° | |
| Earth MOID | 3.91963 AU (586.368 Gm) |
| Jupiter MOID | 0.259194 AU (38.7749 Gm) |
| Jupiter Tisserand parameter | 2.926 |
| Physical characteristics | |
| Dimensions | ? km |
| Mass | ?×10? kg |
Mean density | ? g/cm³ |
Equatorial surface gravity | ? m/s² |
Equatorial escape velocity | ? km/s |
| 8.135 h (0.3390 d) | |
Sidereal rotation period | ? d |
| ?° | |
Pole ecliptic latitude | ? |
Pole ecliptic longitude | ? |
| 0.10 | |
| Temperature | ~121 K |
| ? | |
| 10.3 | |
|
| |
3391 Sinon is a Jupiter Trojan asteroid that orbits in the L4 Lagrangian point of the Sun-Jupiter system, in the "Greek Camp" of Trojan asteroids. It was named after the Greek hero Sinon, who was a warrior during the Trojan War. It was discovered by Hiroki Kosai and Kiichiro Hurukawa at the Kiso Observatory in Japan on February 18, 1977.
References
- ↑ "The Asteroid Orbital Elements Database". astorb. Lowell Observatory.
- ↑ "3391 Sinon (1977 DD3)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 April 2016.
External links
- Discovery Circumstances: Numbered Minor Planets
- Orbital simulation from JPL (Java) / Ephemeris
- 3391 Sinon at the JPL Small-Body Database
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