(417634) 2006 XG1
| Discovery[1] | |
|---|---|
| Discovered by | Catalina Sky Survey 0.68-m Schmidt (703) |
| Discovery date | 11 December 2006 |
| Designations | |
| none | |
| Apollo, Mars-crosser asteroid | |
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 2956 days (8.09 yr) |
| Aphelion | 3.9232 AU (586.90 Gm) |
| Perihelion | 1.0010 AU (149.75 Gm) |
| 2.4621 AU (368.32 Gm) | |
| Eccentricity | 0.59343 |
| 3.86 yr (1411.1 d) | |
| 133.90° | |
| 0° 15m 18.396s / day | |
| Inclination | 20.429° |
| 38.523° | |
| 343.99° | |
| Earth MOID | 0.0212271 AU (3.17553 Gm) |
| Jupiter MOID | 1.5586 AU (233.16 Gm) |
| TJupiter | 3.151 |
| Physical characteristics | |
| Dimensions | 0.6 - 1.3 km (est.) |
| Mass | 4.2×1011 kg (assumed) |
| 18.5 | |
(417634) 2006 XG1 (also written 2006 XG1) is a near-Earth asteroid that had a low but non-zero probability of impacting Earth on October 31, 2041.[3] Originally listed with a Torino Scale hazard rating of 0, this was raised to a rating of 1 on December 22, 2006 as a result of additional observations and refinement of the orbital calculations.[3] However, on January 9, 2007 it was returned to a rating of 0. It was removed from the Sentry Risk Table on February 7, 2007.[4] It is now known that the asteroid will not make a close approach to the Earth in 2041.[2] On October 31, 2041 the asteroid will be 1.69 AU (253,000,000 km; 157,000,000 mi) from the Earth.[5][6]
2006 XG1 was discovered on September 20, 2006 by the University of Arizona's Catalina Sky Survey using a 0.68-metre (27 in) Schmidt–Cassegrain telescope.[1] The object is estimated to be between 600 and 1300 meters by NEODyS, and approximately 670 meters by the JPL Sentry System. The estimated mass is 4.2×1011 kg.
2006 XG1 passed 0.0298 AU (4,460,000 km; 2,770,000 mi) from asteroid 87 Sylvia on 1969 June 20.[2]
References
- ^ a b "MPEC 2006-X35 : 2006 XG1". IAU Minor Planet Center. 2006-12-11. Retrieved 2012-03-20. (K06X01G)
- ^ a b c "JPL Close-Approach Data: (2006 XG1)" (2010-11-04 last obs (arc=3.9 years)). Retrieved 8 April 2016.
- ^ a b Fraser Cain (December 27, 2006). "Close Call with Asteroid 2006 XG1 in 2041". Universe Today. Retrieved 2007-12-28.
- ^ "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. Retrieved 2012-03-19.
- ^ "NEODyS-2 EPHEMERIDES for 2006XG1 on 2041-Oct-31". Near Earth Objects - Dynamic Site. Retrieved 2012-03-20.
- ^ Horizons output. "Observer Table for Asteroid (2006 XG1)". Retrieved 2011-07-24. (Observer Location: Geocentric)