2014_SC324

<span class="nowrap">2014 SC<sub>324</sub></span>

2014 SC324

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2014 SC324 is a sub-kilometer asteroid and fast rotator, classified as a near-Earth object of the Apollo group, approximately 50 meters in diameter.[2] It was first observed on 30 September 2014, by the Mount Lemmon Survey at an apparent magnitude of 21 using a 1.5-meter (59 in) reflecting telescope.[1] With an absolute magnitude of 24.3,[2] the asteroid is about 37–85 meters in diameter.[3]

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Description

The preliminary orbit with a short observation arc of 2 days showed that the asteroid had a very small chance of passing 0.000125 AU (18,700 km; 11,600 mi) from the Moon or 0.0012 AU (180,000 km; 110,000 mi) from Earth on about 23 October 2014.[4] But with an observation arc of 10 days, the nominal (best fit) orbit showed that on 24 October 2014 the asteroid would pass 0.0038 AU (570,000 km; 350,000 mi) (1.5 LD) from Earth and even further from the Moon.[5] The asteroid peaked at apparent magnitude 13.5,[6] placing it in the range of amateurs with roughly 0.25-meter (10 in) telescopes.

It was removed from the Sentry Risk Table on 10 October 2014 using JPL solution #5 with a 10-day observation arc.[7]

It was observed by Goldstone radar on 24–25 October 2014.[8]

References

  1. [1]
    "MPEC 2014-T10: 2014 SC324". IAU Minor Planet Center. 2 October 2014. Retrieved 2 October 2014. (K14SW4C)
  2. [2]
    "JPL Small-Body Database Browser: (2014 SC324)" (last observation: 2014-10-29; arc: 29 days). Jet Propulsion Laboratory. Retrieved 4 April 2016.
  3. [3]
    "Absolute Magnitude (H)". NASA/JPL. Archived from the original on 2 March 2001. Retrieved 2 October 2014.
  4. [4]
    Webcite capture of JPL solution #1 for asteroid 2014 SC324 on 2014-Oct-02
    ArchiveToday capture of JPL solution #1 for asteroid 2014 SC324 on 2014-Oct-02. url: N4eGm
  5. [5]
    "JPL Close-Approach Data: (2014 SC324)" (last observation: 2014-10-29; arc: 29 days). Retrieved 10 October 2014.
  6. [6]
    "2014SC324 Ephemerides for 23 October 2014 and 24 October 2014". NEODyS (Near Earth Objects – Dynamic Site). Retrieved 24 October 2014.
  7. [7]
    "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. Archived from the original on 2 June 2002. Retrieved 10 October 2014.
  8. [8]
    Lance A. M. Benner. "Goldstone Radar Observations Planning: 2340 Hathor, 2014 SM143, 2014 RQ17, 2014 TV, and 2014 SC324". NASA/JPL Asteroid Radar Research. Retrieved 30 October 2014.
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