DADS requests for HST and FUSE data will be down starting late Monday, October 6 and all day Tuesday, October 7 for a software installation. Check this list of alternative sources.
The Copernicus satellite, otherwise known as the
Orbiting Astronomical Observatory 3 (OAO-3),
obtained a series of high resolution far- (900-1560 Å) and
near- (1650-3150 Å) ultraviolet spectral scans
of 551 objects, primarily bright stars, from 1972 to 1981.