2005 WY55
2005 WY55 is a near-Earth Asteroid belonging to the Apollo group. It was first discovered on 26 November 2005. The asteroid will pass within 330,000 km (0.9 lunar distances) from the Earth on 28 May 2065. It has an absolute magnitude (H) of 20.68. It is estimated to be 190 to 250 meters in diameter. It was removed from the Sentry Risk Table on 1 July 2006.
| Asteroid | Date | Nominal approach distance (LD) | Min. distance (LD) | Max. distance (LD) | Absolute magnitude (H) | Size (meters) |
|---|---|---|---|---|---|---|
| (152680) 1998 KJ9 | 1914-12-31 | 0.606 | 0.604 | 0.608 | 19.4 | 279–900 |
| (458732) 2011 MD5 | 1918-09-17 | 0.911 | 0.909 | 0.913 | 17.9 | 556–1795 |
| (163132) 2002 CU11 | 1925-08-30 | 0.903 | 0.901 | 0.905 | 18.5 | 443–477 |
| 2017 VW13 | 2001-11-08 | 0.454 | 0.318 | 3.436 | 20.7 | 153–494 |
| (153814) 2001 WN5 | 2028-06-26 | 0.647 | 0.647 | 0.647 | 18.2 | 921–943 |
| 99942 Apophis | 2029-04-13 | 0.0981 | 0.0963 | 0.1000 | 19.7 | 310–340 |
| 2005 WY55 | 2065-05-28 | 0.865 | 0.856 | 0.874 | 20.7 | 153–494 |
| 101955 Bennu | 2135-09-25 | 0.780 | 0.308 | 1.406 | 20.19 | 472–512 |
| (153201) 2000 WO107 | 2140-12-01 | 0.634 | 0.631 | 0.637 | 19.3 | 427–593 |
| Discovery | |
|---|---|
| Discovery date | 26 November 2005 |
| Designations | |
MPC designation | 2005 WY55 |
Minor planet category | Apollo NEO, PHA |
| Orbital characteristics | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 1451 days (3.97 yr) |
| Aphelion | 4.2823 AU (640.62 Gm) (Q) |
| Perihelion | 0.69532 AU (104.018 Gm) (q) |
Semi-major axis | 2.4888 AU (372.32 Gm) (a) |
| Eccentricity | 0.72062 (e) |
Orbital period (sidereal) | 3.93 yr (1434.1 d) |
Mean anomaly | 188.701° (M) |
Mean motion | 0° 15m 3.708s /day (n) |
| Inclination | 7.27198° (i) |
Longitude of ascending node | 248.22° (Ω) |
| 286.15° (ω) | |
| Earth MOID | 0.00387045 AU (579,011 km) |
| Jupiter MOID | 0.953735 AU (142.6767 Gm) |
| Physical characteristics | |
| Dimensions | 190-250 meters |
| 20.7 | |
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