Trisha Shetty

1999 LE31

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Discovery date  June 12, 1999
Observation arc  409 days (1.12 yr)
Perihelion  4.3386 AU (649.05 Gm)
Absolute magnitude  12.4
Minor planet category  damocloid
Aphelion  11.939 AU (1.7860 Tm)
Discovered  12 June 1999
Asteroid group  Damocloid
1999 LE31 httpsuploadwikimediaorgwikipediacommonsthu
Discovered by  Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro
Discoverer  Lincoln Near-Earth Asteroid Research
People also search for  Solar System, 2000 DG8, 20461 Dioretsa

1999 LE31 is a damocloid centaur discovered on June 12, 1999. It is both a Jupiter and Saturn-crossing minor planet.

1999 LE31 spends most of its orbit located in the outer Solar System between Jupiter and Uranus, and like all centaurs, has an unstable orbit caused by the gravitational influence of the giant planets. Due to this, it must have originated from elsewhere, most likely outside Neptune.

Of over half a million known minor planets, 1999 LE31 is one of about 60 that has a retrograde orbit.

1999 LE31 is approximately 16.8 km in diameter. It came to perihelion (closest approach to the Sun) in December 1998. It was last observed in 2000, and will next come to perihelion in February 2022.

Observations

This asteroid has been recorded at such observatories as:

  • Lincoln Laboratory (1.0-m f/2.15 reflector + CCD) - location of discovery
  • Dominion Astrophysical Observatory (1.82-m reflector + CCD)
  • Dynic Astronomical Observatory (0.60-m f/3.7 reflector + CCD)
  • European Northern Observatory (1.0-m reflector + CCD)
  • Farpoint (0.30-m Schmidt-Cassegrain + CCD)
  • KleŇ• Observatory (0.57-m f/5.2 reflector + CCD)
  • McDonald Observatory (0.76-m reflector + CCD)
  • Roque de los Muchachos Observatory (1.0-m reflector + CCD)
  • References

    1999 LE31 Wikipedia


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