1. 
   BBXRT
   Broad Band X-Ray Telescope on ASTRO-1 shuttle flight (Dec. 1990)
   Found op http://skyview.gsfc.nasa.gov/help/dictionary.html
   
   
2. 
   BBXRT
   (Broad-Band X-Ray Telescope) An instrument that formed part of the Astro-1 payload. Its flight gave the first opportunity for making 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, respective...
   Found op http://www.daviddarling.info/encyclopedia/B/BBXRT.html
   
   
3. 
   bbxrt
   1) Broad band x-ray telescope on astro-1 shuttle flight
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/bbxrt/1
   
   

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