(66063) 1998 RO1
Stony near-Earth object of the Aten group / From Wikipedia, the free encyclopedia
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(66063) 1998 RO1 is a stony near-Earth object of the Aten group on a highly-eccentric orbit. The synchronous binary system measures approximately 800 meters (0.50 miles) in diameter. It was discovered by astronomers of the Lincoln Near-Earth Asteroid Research at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, on 14 September 1998.[2]
Quick Facts Discovery, Discovered by ...
Discovery[1][2] | |
---|---|
Discovered by | LINEAR |
Discovery site | Lincoln Lab's ETS |
Discovery date | 14 September 1998 |
Designations | |
(66063) 1998 RO1 | |
1998 RO1 · 1999 SN5 | |
NEO · Aten[1] | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 13.99 yr (5,111 days) |
Aphelion | 1.7045 AU |
Perihelion | 0.2774 AU |
0.9910 AU | |
Eccentricity | 0.7200 |
0.99 yr (360 days) | |
348.97° | |
0° 59m 56.76s / day | |
Inclination | 22.678° |
351.88° | |
151.13° | |
Known satellites | 1 (D: 0.38 km; P: 14.53 h)[3][4][5][6] |
Earth MOID | 0.0921 AU · 35.9 LD |
Physical characteristics | |
Mean diameter | 0.62±0.25 km[7] 0.72 km (est. at 0.20)[8] 0.8±0.15 km[3][9] 0.860 km (derived)[10] |
Mean density | 2.8±1.3 kg/m3[6] |
2.4924±0.0003 h[4] 2.4924 h[5][9] | |
0.145[9] 0.30±0.17[7] | |
S[10][11][12] | |
18.00[12] · 18.04[9] · 18.05[10] · 18.05±0.071[13] · 18.1[1] | |
Close
Its minor-planet moon, provisionally designated S/2001 (66063) 1, was discovered in September 2003. It has an orbital period of 14.53 hours and measures approximately 48% of its primary, or 380 meters.[1][3] It is one of seven known Aten binaries as of 2017.