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Date: 2012-03-19 16:06:26Space telescopes X-ray telescopes Explorer program Spaceflight Swift Gamma-Ray Burst Mission Unmanned spacecraft Gamma-ray burst GRB 990123 GRB 070714B Astronomy Spacecraft Space | Cnts/s Gamma Ray Bursts BAT Neil GehrelsAdd to Reading ListSource URL: swift.gsfc.nasa.govDownload Document from Source WebsiteFile Size: 3,17 MBShare Document on Facebook |