(214869) 2007 PA8

Last updated

(214869) 2007 PA8
Pa8radar.jpg
Goldstone radar image of 2007 PA8 during its 2012 close approach
Discovery [1]
Discovered by LINEAR
Discovery site Lincoln Lab's ETS
Discovery date9 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
Mean diameter
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]
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 an asteroid and slow rotator, classified as near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 1.4 kilometers in diameter.

    Contents

    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]

    See also

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    References

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    8. Major, Jason (6 November 2012). "Say Hello to Asteroid 2007 PA8". Universe Today. Retrieved 21 October 2020.
    9. 1 2 (214869) 2007 PA8 Goldstone Radar Observations Planning
    10. Rudawska, Regina; Jenniskens, Peter (2014). "New meteor showers identified in the CAMS and SonotaCo meteoroid orbit surveys". Proceedings of the Meteoroids 2013 Conference Aug. 26-30, 2013, A.M. University, Poznan, Poland: 217. arXiv: 1405.1769 . Bibcode:2014me13.conf..217R.
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