(214869) 2007 PA8
Asteroid
From Wikipedia, the free encyclopedia
(214869) 2007 PA8 is an asteroid and slow rotator, classified as a near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 1.4 kilometers in diameter.
Goldstone radar image of 2007 PA8 during its 2012 close approach | |
| Discovery[1] | |
|---|---|
| Discovered by | LINEAR |
| Discovery site | Lincoln Lab's ETS |
| Discovery date | 9 August 2007 |
| Designations | |
| (214869) 2007 PA8 | |
| 2007 PA8 | |
| Apollo · NEO · PHA[1][2] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 10.83 yr (3,957 days) |
| Aphelion | 4.6931 AU |
| Perihelion | 0.9571 AU |
| 2.8251 AU | |
| Eccentricity | 0.6612 |
| 4.75 yr (1,734 days) | |
| 1.4149° | |
| 0° 12m 27.36s / day | |
| Inclination | 1.9841° |
| 142.63° | |
| 292.33° | |
| Earth MOID | 0.0246 AU (9.6 LD) |
| Jupiter MOID | 0.6318 AU |
| Physical characteristics | |
| 1.35±0.07 km[3] 1.38 km (calculated)[4] 1.4±0.2 km[5] | |
| 85±12 h[4] 95±5 h[6] 101.209 h[1] 101.325±1.2659 h[7] 102.24±0.48 h[3] | |
| 0.20 (assumed)[4] 0.29±0.08[5] 0.29±0.14[3] | |
| C[6] · Q[5] · S[4] BâV = 0.765±0.022[4] VâR = 0.415±0.011[4] VâI = 0.741±0.015[4] | |
| 16.2[5] · 16.216±0.002 (R-band)[7] · 16.30±0.52[3] · 16.4[1] · 16.47[6] · 16.67[4] | |
It came within 6.5 million km (4 million miles, 17 lunar distances) of Earth on 5 November 2012.[8][9]
It was discovered on 9 August 2007, by the Lincoln Near-Earth Asteroid Research team (LINEAR) at the U.S. Lincoln Laboratory Experimental Test Site in Socorro, New Mexico.[2]
It was studied by the 70-meter (230 ft) Goldstone Deep Space Network antenna as it came near Earth, which resulted in radar images and other data about the asteroid, such as its very long rotation period of approximately 100 hours.[9]
2007 PA8 may be a dormant comet related to the November γ Pegasids meteor shower.[10]
Numbering and naming
This minor planet was numbered by the Minor Planet Center on 9 May 2009.[11] As of 2018, it has not been named.[2]
