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.[1][2]

## 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)[3]

## References

1. ↑ "SOXS Instruments". Shodhganga. http://shodhganga.inflibnet.ac.in/bitstream/10603/3954/12/12_chapter 2.pdf. Retrieved 1 March 2013.
2. ↑ http://cdaw.gsfc.nasa.gov/publications/ilws_goa2006/054_Jain.pdf [bare URL PDF]
3. ↑ and L. Bharti, R. Jain, N. J. Bhatt. "Solar X-ray Spectrometer (SOXS) mission:Observations and new results". nasa.gov. NASA. http://cdaw.gsfc.nasa.gov/publications/ilws_goa2006/054_Jain.pdf. Retrieved 1 March 2013.

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