2010 GA6

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2010 GA6
2010GA6 in April 8 2010.jpg
2010 GA6, captured by Purple Mountain Observatory in April 8, 2010
Discovery[1]
Discovered by Catalina Sky Survey
Discovery date April 5, 2010
Designations
none
Apollo, NEO[2]
Orbital characteristics[2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 6
Aphelion 3.6810 AU (550.67 Gm)
Perihelion 0.92946 AU (139.045 Gm)
2.3052 AU (344.85 Gm)
Eccentricity 0.59681
3.50 yr (1278.4 d)
223.11°
0° 16m 53.76s /day
Inclination 9.7537°
197.70°
34.309°
Earth MOID 0.0042487 AU (635,600 km)
Jupiter MOID 1.35447 AU (202.626 Gm)
Physical characteristics
Dimensions 22 meters (72 ft)[3]
25.9,[3] 26.0[2]

2010 GA6 is an Apollo near-Earth asteroid discovered by the Catalina Sky Survey on April 5, 2010,[1] four days before a close approach to Earth. It is a relatively small space rock about 22 meters (72 ft) wide.[3] With a 1-day observation arc, the asteroid had a 1 in 6 million chance of impacting in 2074.[4] It was removed from the Sentry Risk Table on April 8, 2010.[5] The asteroid passed Earth at a distance of about 0.0029 AU (430,000 km; 270,000 mi) at 02:07 UT on April 9, 2010 (7:06 pm EST on April 8).[3][6][7][8] A stony asteroid 22 meters in diameter can be expected to create an air burst with the equivalent of 300 kilotons of TNT at an altitude of 21 kilometers (69,000 ft).[9] Generally only asteroids larger than 35 meters across pose a threat to a town or city.[10]

See also[edit]

References[edit]

  1. ^ a b "MPEC 2010-G23 : 2010 GA6". IAU Minor Planet Center. 2010-04-05. Retrieved 2013-02-08.  (K10G06A)
  2. ^ a b c "JPL Small-Body Database Browser: (2010 GA6)". Jet Propulsion Laboratory. Retrieved 31 March 2016. 
  3. ^ a b c d "Asteroid to Fly by Within Moon's Orbit Thursday". NASA/JPL. April 6, 2010. Retrieved 2013-02-08. 
  4. ^ "Observations of small Solar-System bodies". hohmanntransfer. 2010-04-07. Retrieved 2013-02-08.  (1.6e-07 = 1 in 6,250,000 chance)
  5. ^ "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. Retrieved 2012-03-19. 
  6. ^ "JPL Close-Approach Data: (2010 GA6)" (2013-01-20 last obs (arc=4 days)). Retrieved 2013-02-08. 
  7. ^ Newfound Asteroid to Buzz Earth Thursday
  8. ^ Newly Discovered Asteroid Will Pass by Earth April 8
  9. ^ Robert Marcus; H. Jay Melosh & Gareth Collins (2010). "Earth Impact Effects Program". Imperial College London / Purdue University. Retrieved 2013-02-04.  (solution using 22 meters, 2600kg/m^3, 17km/s, 45 degrees)
  10. ^ Will Ferguson (January 22, 2013). "Asteroid Hunter Gives an Update on the Threat of Near-Earth Objects". Scientific American. Retrieved 2013-01-23. 

External links[edit]