2017 BS5
In the astronomy of the Solar System, 2017 BS5 is a sub-kilometer asteroid, classified as near-Earth object that belongs to the Apollo group. It measures approximately 40–90 meters. During a close approach to Earth, it was first observed 25 January 2017, by the ATLAS survey at Haleakala Observatory, Hawaii, United States.
July 23, 2017 flyby of Earth | |
| Discovery | |
|---|---|
| Discovered by | ATLAS (T05) |
| Discovery site | Haleakala Obs. |
| Discovery date | 25 January 2017 |
| Designations | |
MPC designation | 2017 BS5 |
Minor planet category | Apollo · NEO |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 1 | |
| Observation arc | (190 days) |
| Aphelion | 1.0231 AU |
| Perihelion | 1.0078 AU |
Semi-major axis | 1.0154 AU |
| Eccentricity | 0.0075 |
Orbital period (sidereal) | 1.02 yr (374 days) |
Mean anomaly | 204.63° |
Mean motion | 0° 57m 47.52s / day |
| Inclination | 11.232° |
Longitude of ascending node | 120.84° |
| 15.577° | |
| Earth MOID | 0.0070 AU · 2.7 LD |
| Physical characteristics | |
| Dimensions | 40–90 meters |
| 24.1 | |
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