(523662) 2012 MU 2

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(523662) 2012 MU 2
Discovery [1]
Discovered by Catalina Sky Srvy.
Discovery site Catalina Stn.
Discovery date 18 June 2012
Designations
(523662) 2012 MU 2
2012 MU 2
Apollo   · NEO   · PHA [1] [2]
Orbital characteristics [2]
Epoch 27 April 2019 ( JD 2458600.5)
Uncertainty parameter 0
Observation arc 6.23 yr (2,277 d)
Aphelion 3.1119 AU
Perihelion 0.9987 AU
2.0553 AU
Eccentricity 0.5141
2.95 yr (1,076 d)
114.89 °
0° 20 m 4.2 s / day
Inclination 11.222°
250.33°
16.587°
Earth  MOID 0.0011 AU (0.43 LD )
Physical characteristics
Mean diameter
240  m (est.) [3]
20.8 [1] [2]

(523662) 2012 MU 2 , provisional designation 2012 MU 2 , is a sub-kilometer asteroid on an eccentric orbit, classified as near-Earth object and potentially hazardous asteroid of the Apollo group . [2] It was discovered on 18 June 2012 by astronomers of the Catalina Sky Survey at an apparent magnitude of 19.9 using a 0.68-meter (27 in) Schmidt?Cassegrain telescope . [4] It has an estimated diameter of 240 meters (790 ft). [3] The asteroid was listed on Sentry Risk Table with a Torino Scale rating of 1 on 23 June 2012. [3]

Orbit and classification [ edit ]

2012 MU 2 is a member of the Apollo asteroids , a group of near-Earth objects with an Earth-crossing orbit. It orbits the Sun at a distance of 1.0?3.1  AU once every 2 years and 11 months (1,076 days; semi-major axis of 2.06 AU). Its orbit has an eccentricity of 0.51 and an inclination of 11 ° with respect to the ecliptic . [2]

On 24 June 2012 with an observation arc of 6 days, 2012 MU 2 showed a 1 in 7,140 chance of impacting Earth on 1 June 2015. It was removed from the Sentry Risk Table on the next day (25 June). [5]

With an observation arc of 113 days, the JPL Small-Body Database (solution JPL 42 dated 2013-Aug-05) shows that 2012 MU 2 may make a very close approach to asteroid 29 Amphitrite on 8 April 2179. [6] The minimum approach distance is about 0.000032  AU (4,800  km ; 3,000  mi ), but the maximum distance is 0.14 AU (21,000,000 km; 13,000,000 mi). [6] The nominal approach is 0.047 AU (7,000,000 km; 4,400,000 mi). [6]

The Earth approach in 2015 occurred on 15 May 2015 at a distance of 0.11485 AU (17,181,000 km; 10,676,000 mi). [6]

Numbering and naming [ edit ]

This minor planet was numbered by the Minor Planet Center on 25 September 2018 ( M.P.C. 111778 ). [7] As of 2018, it has not been named . [1]

References [ edit ]

  1. ^ a b c d "523662 (2012 MU2)" . Minor Planet Center . Retrieved 9 October 2018 .
  2. ^ a b c d e "JPL Small-Body Database Browser: 523662 (2012 MU2)" (2018-09-12 last obs.). Jet Propulsion Laboratory . Retrieved 9 October 2018 .
  3. ^ a b c "Observations of small Solar-System bodies (2012 MU2)" . hohmanntransfer. 23 June 2012 . Retrieved 8 September 2013 .
  4. ^ "MPEC 2012-M24 : 2012 MU2" . IAU Minor Planet Center . 20 June 2012 . Retrieved 8 September 2013 . (K12M02U)
  5. ^ "Date/Time Removed" . NASA/JPL Near-Earth Object Program Office. Archived from the original on 2 June 2002 . Retrieved 8 September 2013 .
  6. ^ a b c d "JPL Close-Approach Data: (2012 MU2)" (last observation: 2015-06-14; arc : 1091 days) . Retrieved 3 July 2015 .
  7. ^ "MPC/MPO/MPS Archive" . Minor Planet Center . Retrieved 9 October 2018 .

External links [ edit ]

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