Harman Patil (Editor)

(31345) 1998 PG

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Discovered by  LONEOS
Observation arc  13601 days (37.24 yr)
Perihelion  1.2264 AU (183.47 Gm)
Discovered  3 August 1998
Discovery site  Anderson Mesa Station
Spectral type  Q-type asteroid
Discovery date  3 August 1998
Aphelion  2.8041 AU (419.49 Gm)
Semi-major axis  2.0153 AU (301.48 Gm)
Absolute magnitude  17.3
Asteroid group  Amor asteroid
(31345) 1998 PG
Discoverer  Lowell Observatory Near-Earth-Object Search

(31345) 1998 PG is an Amor near-Earth asteroid discovered by the LONEOS program on August 3, 1998. It is known to have a moon, S/2001 (31345) 1.

Contents

Status as a Near-Earth Object

1998 PG is classified as an Amor asteroid. It has made multiple close approaches to Earth, with the closest being 35,648,680 kilometres (22,151,060 mi) on 15 October 1978.

Moon

1998 PG has a single moon, S/2001 (31345) 1. The moon was discovered at the Table Mountain Observatory by analyzing observations from 29 August to 25 October 1998. S/2001 (31345) 1 has a size of 300 metres (980 ft), one-third the size of the asteroid itself, and orbits every 14 hours with a semi-major axis of 1.5 kilometres (0.93 mi). From the surface of 1998 PG, the moon would have an angular diameter of about 16.3°. For comparison, the Sun appears to be 0.5° from Earth.

References

(31345) 1998 PG Wikipedia


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