The Space Surveillance Telescope (SST) is a Southern Hemisphere-based U.S. Space Force telescope used for detecting, tracking, and cataloguing satellites, near-Earth objects, and space debris.
A computer-generated image representing space debris as could be seen from high Earth orbit. The two main debris fields are the ring of objects in geosynchronous Earth orbit (GEO) and the cloud of objects in low Earth orbit (LEO).
Space Surveillance Telescope
Asteroid impact prediction is the prediction of the dates and times of asteroids impacting Earth, along with the locations and severities of the impacts.
One of the 7,000 buildings damaged by the 2013 Chelyabinsk meteor
Viewed from space by WISE using a thermal camera, asteroid 2010 AB78 appears redder than the background stars as it emits most of its light at longer infrared wavelengths. In visible light it is very faint and difficult to see.
Ground based telescopes can only detect objects approaching on the night-side of the planet, away from the Sun. Roughly half of impacts occur on the day-side of the planet.