System for Data Collecting and Processing (SSOI)

SSOI has been developed for the "Spektr-RG" mission and is an integrated intelligent interface between the s/c systems and a set of X-ray detectors (KRD) of the ART-XC telescope and thermal control unit (BU SOTR).
The system for Data Collecting and Processing is intended for solving the following tasks:
  • - receiving and storing digital commands, as well as reception of onboard time code from s/c housekeeping systems;
  • - the transfer of digital control commands and onboard time code to KRD and BU SOTR of the ART-XC telescope, as well as receiving from them and storing telemetry and scientific information;
  • - transferring data stored in nonvolatile memory to the radio channel for downlinking to Earth
  • - receiving clock from the s/c onboard system with a frequency of 1 Hz and its retranslation to the KRD of the ART-XC telescope.

Main characteristics

Mass, kg 2,5
Dimensions, mm 218х185х105
Supply voltage, V 25,65 ÷ 28,35
Power consumption, W ≤ 24
Warm-up time after powering, с ≤ 60
Operating temperature range on the instrument adapter, С° -20 - +50
Resurs, hour 81030
Lifetime, years 10
Probability of failure-free operation during the expedition (7.5 years) 0,95