2002 JE9

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2002 JE9
Discovery[1]
Discovered by LINEAR (704)
1.0-m Reflector
Discovery date 2002 May 06
Designations
MPC designation 2002 JE9
Minor planet category Apollo NEO,
PHA[2]
Orbital characteristics[2]
Epoch 2011-Aug-27
(Uncertainty=1)[2]
Aphelion 1.5126 AU (Q)
Perihelion 0.62292 AU (q)
1.0677 AU (a)
Eccentricity 0.41662
1.10 yr
232.07° (M)
Inclination 8.8306°
200.10°
255.4°
Physical characteristics
Dimensions ~200 metres (660 ft)[3]
21.3[2]

2002 JE9 (also written 2002 JE9) is a near-Earth asteroid and potentially hazardous object.[2] It has a well determined orbit with an observation arc of 10 years and an Uncertainty Parameter of 1.[2] It was removed from the Sentry Risk Table on 10 May 2002.[4] 2002 JE9 was discovered on 6 May 2002 by the Lincoln Near-Earth Asteroid Research (LINEAR) project using a 1.0-metre (39 in) Reflecting telescope; at the time of discovery, the asteroid possessed an apparent magnitude of 19.1.[1]

The asteroid has an estimated diameter of about 200 metres (660 ft)[3] based on an absolute magnitude of 21.3.[2] 2002 JE9 is considered significant due to having previously passed closer to the Earth; on 11 April 1971, it passed Earth at a distance of 0.0015 AU (220,000 km; 140,000 mi).[5][6] 2002 JE9 is one the largest objects known to have passed inside the orbit of the moon. During the close approach in 1971 the asteroid reached about apparent magnitude 10,[7] about the same brightness as Saturn's moon Iapetus.[8]

The asteroid will pass 0.0049 AU (730,000 km; 460,000 mi) from Venus on 25 November 2021.[5][6]

References[edit]

  1. ^ a b "MPEC 2002-J25 : 2002 JE9". IAU Minor Planet Center. 2002-05-08. Retrieved 2011-11-08.  (K02J09E)
  2. ^ a b c d e f g "JPL Small-Body Database Browser: (2002 JE9)". Jet Propulsion Laboratory. 2011-07-21 last obs (arc=10.14 years). Retrieved 2011-11-08. 
  3. ^ a b "Near Earth Asteroids (NEAs)". International Astronomical Union. 13 October 2011 – Version 20.1. Retrieved 2011-10-30. 
  4. ^ "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. Retrieved 2012-03-19. 
  5. ^ a b "JPL Close-Approach Data: (2002 JE9)". 2011-07-21 last obs (arc=10.14 years). Retrieved 2011-11-08. 
  6. ^ a b "NEODyS-2 Close Approaches for 2002JE9". Near Earth Objects - Dynamic Site. Retrieved 2011-11-08. 
  7. ^ "2002JE9 Ephemerides for 11 April 1971". NEODyS (Near Earth Objects - Dynamic Site). Retrieved 2011-11-08. 
  8. ^ "Classic Satellites of the Solar System". Observatorio ARVAL. Archived from the original on 31 July 2010. Retrieved 2010-06-25. 

External links[edit]

Preceded by
(163132) 2002 CU11
Large NEO Earth close approach
(inside the orbit of the moon)

11 April 1971
Succeeded by
2005 YU55