(164207) 2004 GU9
| Discovery | |
|---|---|
| Discovered by | LINEAR |
| Discovery site | Socorro |
| Discovery date | 13 April 2004 |
| Designations | |
Apollo  | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 5424 days (14.85 yr) |
| Aphelion | 1.1376258581 AU (170.18640603 Gm) |
| Perihelion | 0.86490477 AU (129.387912 Gm) |
| 1.001265315 AU (149.7871591 Gm) | |
| Eccentricity | 0.1361882 |
| 1.00 yr (365.95 d) | |
| 154.915171° | |
| 0° 59m 1.464s / day | |
| Inclination | 13.6490265° |
| 38.6405971° | |
|
280.55672 ± 0.00007° | |
|
2456145.53817 ± 0.00006 jd | |
| 280.28542° | |
| Earth MOID | 0.000389702 AU (58,298.6 km) |
| Jupiter MOID | 4.00854 AU (599.669 Gm) |
| Physical characteristics | |
| Dimensions | 160–360 meters[2] |
| 21.1[1] | |
|
| |
(164207) 2004 GU9 is a small near-Earth asteroid in the Apollo asteroid family. It will be a quasi-satellite of Earth until around 2600.[3]
On 14 April 2004 (with less than a 1-day observation arc), the Sentry Risk Table showed 180 virtual impactors.[4] It was removed from the Sentry Risk Table 2 days later on 16 April 2004.[5] (164207) 2004 GU9 now has a well determined orbit with an observation arc of 12 years.
See also
References
- 1 2 "(164207) 2004 GU9". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 2164207. Retrieved 7 April 2016.
- ↑ "Absolute Magnitude (H)". NASA/JPL.
- ↑ Dynamical evolution of Earth’s quasi-satellites: 2004 GU9 and 2006 FV35
- ↑ "Major News about Minor Objects: Risk monitoring". hohmanntransfer. 2004-04-14.
- ↑ "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. Retrieved 2015-03-01.
External links
- (164207) 2004 GU9 at the JPL Small-Body Database
- Dynamical evolution of Earth’s quasi-satellites: 2004 GU9 and 2006 FV35 by Wajer, P. 2010, Icarus, Volume 209, Issue 2, pp. 488–493.
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