title: SOXS
text: # SOXS
  
  Solar X-Ray Spectrometer, or SOXS, was an experimental payload launched onboard Indian geostationary satellite GSAT-2 by the Indian Space Research Organisation, ISRO. SOXS collected data about X-ray emissions from solar flares with high energy and temporal resolutions.
  
  ## Features
  
  * X-Ray Spectrometer (SOXS) was flown onboard GSAT-2 on 8-May-2003.
  * SOXS employs Si and CZT semiconductor devices, which are extremely high resolution and low noise detectors.
  * Detector package is mounted on a Sun Pointing Mechanism with tracking accuracy better than 0.1 degree.
  * Pulse Height (PHA) measurements in 256 channels.
  * System Dead Time- 16 microseconds for Si Pin and 13 microseconds for CZT.
  * Energy window counters.
  * On board calibration using Cd109 Radio isotope.
  * System Health Parameters Monitoring.
  * Onboard selection for Background Rejection (LLD/Threshold).
  * In view of Temperature sensitivity of the detectors, observational interval is < 3 Hrs starting from 04:00 to 06:45 UT.
  * Block Schematics of SLD Payload (SLED, SFE, SLE and SCE)
  * SSTM Daily Tracking (0 to 189 degrees)
  