2007 FT3

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 astronomical units (28.4 ± 1.5 million kilometres) 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 –3.06, the poorly known orbit and assumed size place 2007 FT3 eighth on an unconstrained listing of the Sentry Risk Table. == Potential impacts == Possible impacts were projected for 2 October 2013, 3 October 2019, and 3 October 2024. Since the asteroid has a short observation arc and the uncertainty in the orbit of the asteroid intersects Earth's orbit, simulations could not rule out the asteroid and Earth being at the same point in space on any of those dates. None of these impacts happened, nor was the asteroid detected near those dates. == See also == 1979 XB 2014 MV67 == Notes == == References == == External links == 2007 FT3 at NeoDyS-2, Near Earth Objects—Dynamic Site Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation 2007 FT3 at ESA–space situational awareness Ephemerides · Observations · Orbit · Physical properties · Summary 2007 FT3 at the JPL Small-Body Database