 Goldstone radar image of2007 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 | 4.6931AU |
| Perihelion | 0.9571 AU |
| 2.8251 AU | |
| Eccentricity | 0.6612 |
| 4.75yr (1,734 days) | |
| 1.4149° | |
| 0° 12m 27.36s / day | |
| Inclination | 1.9841° |
| 142.63° | |
| 292.33° | |
| Earth MOID | 0.0246 AU (9.6LD) |
| 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±12h[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] B–V =0.765±0.022[4] V–R =0.415±0.011[4] V–I =0.741±0.015[4] | |
| 16.2[5] · 16.216±0.002(R)[7] · 16.30±0.52[3] · 16.4[1] · 16.47[6] · 16.67[4] | |
(214869) 2007 PA8 is anasteroid andslow rotator, classified asnear-Earth object andpotentially hazardous asteroid of theApollo group, approximately 1.4 kilometers in diameter.
It came within 6.5 million km (4 million miles, 17lunar distances) of Earth on 5 November 2012.[8][9]
It was discovered on 9 August 2007, by theLincoln 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 longrotation period of approximately 100 hours.[9]
2007 PA8 may be adormant comet related to the November γPegasidsmeteor shower.[10]
Thisminor planet wasnumbered by theMinor Planet Center on 9 May 2009.[11] As of 2018, it has not beennamed.[2]
2012 in space | ||
|---|---|---|
Space probe launches |
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| Impact events | ||
| SelectedNEOs | ||
| Exoplanets |
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| Discoveries | ||
| Comets | ||
| Space exploration | ||
