chongo's Journal: 2002-NT7 asteroid is not a major threat for the next 100 yrs

The 2002-NT7 asteroid model has enough observational data to indicate that the chance of Earth impact in the next 100 years is extremely unlikely.

Previous models had made a pre-2060 impact unlikely. Recent observation data has allowed the 2002-NT7 model to be refined to the point where impacts between 2060 and 2102 can also be ruled out.

The Torino scale has been reduced from 1 to 0. The Palermo scale value is somewhere below -8.5. The odds impact in the next 100 years is about 1 in ~1,000,000,000.

It is possible that 2002-NT7 could become a hazard somewhere beyond 2102. Threat models are usually unable to evaluate impact threats beyond 100 years. The asteroid will remain on the watch list even though it is no longer on the worry list.

p.s. Around Aug 5 we will re-evaluate the other >0 Torino asteroid 1997-XR2 . That asteroid is much smaller than 2002-NT7 but is still worth watching. Check this journal for more details.