2007 FT3
2007 FT3 (also written 2007 FT3) is a lost asteroid with a short observation arc of 1.2 days that cannot be recovered with targeted observations and awaits serendipitous survey observations. It has a poorly constrained orbit and has not been seen since 2007. It was first observed on 20 March 2007 when the asteroid was estimated to be 0.19 ± 0.01 AU (28.4 ± 1.5 million km) from Earth and had a solar elongation of 107 degrees. 2007 FT3 is the fourth largest asteroid with better than a 1-in-2 million cumulative chance of impacting Earth after (29075) 1950 DA, 1979 XB, and 101955 Bennu. With a cumulative Palermo Technical Impact Hazard Scale of -2.93, the poorly known orbit and assumed size place 2007 FT3 fifth on an unconstrained listing of the Sentry Risk Table. The asteroid is not expected to be near the Earth in October 2024.
| Discovery | |
|---|---|
| Discovered by | Mt. Lemmon Survey |
| Discovery date | 20 March 2007 |
| Designations | |
| 2007 FT3 | |
| Orbital characteristics | |
| Epoch 21 March 2007 (JD 2454180.5) | |
| Uncertainty parameter 9 | |
| Observation arc | 1.2 days |
| Aphelion | 1.48±0.02 AU (Q) |
| Perihelion | 0.782±0.007 AU (q) |
| 1.13±0.02 AU (a) | |
| Eccentricity | 0.308±0.006 (e) |
| 1.2±0.03 years | |
Average orbital speed | 28.4 km/s |
| 298°±3° (M) | |
| Inclination | 26.9°±0.43° (i) |
| 9.9°±0.2° (Ω) | |
| 277°±2° (ω) | |
| Earth MOID | 0.01 AU (1.5 million km) ? |
| Jupiter MOID | 3.83 AU (573 million km) ? |
| Physical characteristics | |
| Dimensions |
|
| 20? | |