Article · Wikipedia archive · Last revised Jun 24, 2026

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.

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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.12

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)2
References

References

  1. "SOXS Instruments" (PDF). Shodhganga. Retrieved 1 March 2013.
  2. R. Jain; N. J. Bhatt; L. Bharti. "Solar X-ray Spectrometer (SOXS) mission: Observations and new results" (PDF). Archived from the original (PDF) on 2009-03-20.