1437 Diomedes
| Discovery[1] | |
|---|---|
| Discovered by | Karl Wilhelm Reinmuth |
| Discovery date | 3 August 1937 |
| Designations | |
Named after | Diomedes |
| 1937 PB | |
| Jupiter trojan | |
| Orbital characteristics[1][2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 78.01 yr (28494 days) |
| Aphelion | 5.4237 AU (811.37 Gm) |
| Perihelion | 4.9654 AU (742.81 Gm) |
| 5.1946 AU (777.10 Gm) | |
| Eccentricity | 0.044112 |
| 11.84 yr (4324.39 d) | |
Average orbital speed | 13.10 km/s |
| 183.828° | |
| 0° 4m 59.696s / day | |
| Inclination | 20.491° |
| 315.792° | |
| 131.59° | |
| Earth MOID | 4.01036 AU (599.941 Gm) |
| Jupiter MOID | 0.271727 AU (40.6498 Gm) |
| Jupiter Tisserand parameter | 2.872 |
| Physical characteristics | |
| Dimensions |
164.3±4.1 km (IRAS)[1] ~ (284 × 126 × 65)[3] |
Mean radius | 82.155±2.05 km |
| 24.49 h (1.020 d) | |
Sidereal rotation period | 24.46 hr [1] |
| 0.0313±0.002 [1] | |
| Temperature | ~ 122 K |
| 8.30 [1] | |
|
| |
1437 Diomedes is a Jupiter trojan orbiting near the L4 Lagrangian point of the Sun–Jupiter system, i.e. "Greek Camp". Based on IRAS data, Diomedes is 164 km in diameter, the third-largest Jupiter trojan.[4] It was discovered by Karl Wilhelm Reinmuth on 3 August 1937, in Heidelberg, Germany[1] and named after the Greek hero Diomedes
| Trojan | Diameter (km) |
|---|---|
| 624 Hektor | 225 |
| 911 Agamemnon | 167 |
| 1437 Diomedes | 164 |
| 1172 Äneas | 143 |
| 617 Patroclus | 141 |
| 588 Achilles | 135 |
| 1173 Anchises | 126 |
| 1143 Odysseus | 126 |
| Source: JPL Small-Body Database, IRAS data | |
References
- 1 2 3 4 5 6 7 "JPL Small-Body Database Browser: 1437 Diomedes (1937 PB)" (2008-01-18 last obs). Retrieved 27 April 2016.
- ↑ "The Asteroid Orbital Elements Database". astorb. Lowell Observatory.
- ↑ Sato, Isao; Šarounová, Lenka; Fukushima, Hideo (2000). "Size and Shape of Trojan Asteroid Diomedes from Its Occultation and Photometry". Icarus. 145 (1): 25–32. Bibcode:2000Icar..145...25S. doi:10.1006/icar.1999.6316.
- ↑ "JPL Small-Body Database Search Engine: orbital class (TJN) and diameter > 50 (km)". JPL's Solar System Dynamics Group. Retrieved 2012-03-28.
External links
- Orbital simulation from JPL (Java) / Ephemeris
- Size and Shape of Trojan Asteroid Diomedes from Its Occultation and Photometry (284×126×65)
- 1437 Diomedes at the JPL Small-Body Database
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