(85770) 1998 UP1
(85770) 1998 UP1 (provisional designation 1998 UP1) is a near Earth, Aten asteroid orbiting at nearly a 1:1 resonance with Earth.
| Discovery | |
|---|---|
| Discovered by | LINEAR |
| Discovery site | Lincoln Lab's ETS |
| Discovery date | 18 October 1998 |
| Designations | |
Alternative designations | 1998 UP1 |
Minor planet category | NEO · Aten |
| Orbital characteristics | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 8787 days (24.06 yr) |
| Aphelion | 1.3427 AU (200.87 Gm) |
| Perihelion | 0.65377 AU (97.803 Gm) |
Semi-major axis | 0.99826 AU (149.338 Gm) |
| Eccentricity | 0.34509 |
Orbital period (sidereal) | 1.00 yr (364.30 d) |
Mean anomaly | 193.86° |
Mean motion | 0° 59m 17.484s / day |
| Inclination | 33.180° |
Longitude of ascending node | 18.357° |
| 234.27° | |
| Earth MOID | 0.0833366 AU (12.46698 Gm) |
| Physical characteristics | |
Mean diameter | 210–470 meters |
| 20.5 | |
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