2006 XG1

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2006 XG1
Discovery[1]
Discovered by Catalina Sky Survey
0.68-m Schmidt (703)
Discovery date December 11, 2006
Designations
none
Minor planet category Apollo,
Mars-crosser asteroid
Orbital characteristics
Epoch 2012-Mar-14
(Uncertainty=0)[2]
Aphelion 3.9223 AU
Perihelion 1.0016 AU
2.4619 AU
Eccentricity 0.59314
3.86 years
136.92°
Inclination 20.408°
38.636°
343.89°
Physical characteristics
Dimensions 0.6 - 1.3 km (est.)
Mass 4.2×1011 kg (assumed)
18.5

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[edit]

  1. ^ a b "MPEC 2006-X35 : 2006 XG1". IAU Minor Planet Center. 2006-12-11. Retrieved 2012-03-20.  (K06X01G)
  2. ^ a b c "JPL Close-Approach Data: (2006 XG1)". 2010-11-04 last obs (arc=3.9 years). Retrieved 2012-03-19.  Check date values in: |date= (help)
  3. ^ a b Fraser Cain (December 27, 2006). "Close Call with Asteroid 2006 XG1 in 2041". Universe Today. Retrieved 2007-12-28. 
  4. ^ "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. Retrieved 2012-03-19. 
  5. ^ "NEODyS-2 EPHEMERIDES for 2006XG1 on 2041-Oct-31". Near Earth Objects - Dynamic Site. Retrieved 2012-03-20. 
  6. ^ Horizons output. "Observer Table for Asteroid (2006 XG1)". Retrieved 2011-07-24.  (Observer Location: Geocentric)