Omnidirectional Gamma-Ray Spectrometer was designed to operate from 6 keV to greater than 1 MeV. The instrument consisted of four wide-field gamma-ray detectors with a total effective area of . The HETE satellite remained within the launch vehicle due to battery failure. The experiment was unable to operate. Ultraviolet Transient Camera Array The Ultraviolet Transient Camera Array was designed to provide accurate directional information on transient events, and to assist with spacecraft attitude determination. The instrument consisted of four ultraviolet Charge-coupled device (CCD) cameras operating in the 5 to 7 eV range. Wide Field X-ray Monitor The Widefield X-ray Monitor was designed to perform X-ray studies of gamma-ray bursts. The instrument consisted of coded aperture cameras, sensitive in the 2-25 keV energy range, and with location accuracy to ~ 10 arcminutes or better. Launch The HETE-1 satellite was launched with the Argentina satellite SAC-B. HETE-1 was lost during the launch on 4 November 1996, at 17:08:56 UTC, from Wallops Flight Facility (WFF), launch area-3. The Pegasus XL launch vehicle achieved a good orbit, but explosive bolts releasing HETE-1 from another satellite, SAC-B, and from its Dual Payload Attach Fitting (DPAF) envelope failed to charge, dooming both satellites. A battery on the third stage of the launch vehicle and responsible for these bolts cracked during the ascent. Due to its inability to deploy the solar panels, HETE lost power several days after launch. Atmospheric entry HETE-1 re-entered on 7 April 2002. See also Explorer program References Gamma-ray telescopes X-ray telescopes Space telescopes Satellites orbiting Earth Spacecraft launched in 1996 Spacecraft launched in 2000 Spacecraft launched by Pegasus rockets Explorers Program