Bisei Space Guard Center (BSGC) is an optical telescope facility in Japan, operated by JAXA. It tracks near-Earth asteroids and space debris.
DARTS provides data observed by a 25 cm telescope from 2000 to 2002 and data observed by a 1 m telescope from 2007 to 2017.
Launched in June, 1992, The Extreme Ultraviolet Explorer (EUVE) conducted the first extreme ultraviolet (70-760 Angstroms) survey of the sky and subsequently began a Guest Observer Program of pointed
