(85640) 1998 OX4
(85640) 1998 OX4 (provisional designation 1998 OX4) is a sub-kilometer asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group.
| Discovery | |
|---|---|
| Discovered by | Spacewatch |
| Discovery site | Kitt Peak National Obs. |
| Discovery date | 26 July 1998 |
| Designations | |
MPC designation | (85640) 1998 OX4 |
Alternative designations | MPO 267962 |
Minor planet category |
|
| Orbital characteristics | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 3656 days (10.01 yr) |
| Aphelion | 2.347918212 AU (351.2435651 Gm) |
| Perihelion | 0.81264205 AU (121.569520 Gm) |
Semi-major axis | 1.580280132 AU (236.4065429 Gm) |
| Eccentricity | 0.4857608 |
Orbital period (sidereal) | 1.99 yr (725.60 d) |
Mean anomaly | 227.77555° |
Mean motion | 0° 29m 46.099s / day |
| Inclination | 4.5134807° |
Longitude of ascending node | 299.70814° |
| 117.10906° | |
| Earth MOID | 0.00103632 AU (155,031 km) |
| Jupiter MOID | 3.03959 AU (454.716 Gm) |
| Physical characteristics | |
| Dimensions | 300–600 m[a] |
| 21.1 | |
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