Diagram of Astro-1 instruments with BBXRT on the right
Astro-1 payload in the Shuttle Bay illustration
STS-35, carrying ASTRO-1 with the BBXT heads into orbit, 1990
The Broad Band X-ray Telescope (BBXRT) was flown on the Space Shuttle Columbia (STS-35) on 1990 December 2-December 11, as part of the ASTRO-1 payload. The flight of BBXRT marked the first opportunity for performing X-ray observations over a broad energy range (0.3-12 keV) with a moderate energy resolution (typically 90 eV and 150 eV at 1 and 6 keV, respectively).