Design Approach for CCSDS Complied Command Operation and Frame Operation Procedure for Integrated Spacecraft Checkout

Consultative Committee for Space Data Systems (CCSDS) complied Telemetry and Telecommand Processor’s (TTCP) development was taken up by Spacecraft Checkout Group (SCG) of U. R. Rao Satellite Centre, Indian Space Research Organization (ISRO) as a part of ‘Make in India’ campaign. As SCG is responsible for conducting exhaustive tests at integrated spacecraft level to evaluate and qualify the flight worthiness of subsystems onboard the spacecraft. This inhouse Technology Demonstration/ Development of Consultative Committee for Space Data Systems (CCSDS) complied TTCP for spacecraft checkout applications in a cost effective and easy maintainable way, was taken up as a challenge. The in-house developed Processor was successfully deployed for the first time in checkout for Indian communication satellite and subsequently to Indian Remote Sensing (IRS) satellite. In future, TTCP will be used in Integrated Spacecraft Testing of ISROs Low Earth Orbit, Geostationary Orbit and Interplanetary Spacecraft missions. The telecommand system plays a vital role in the success of any satellite mission. For effective control of various satellite subsystems, under all conditions, a highly efficient and responsive telecommand system is absolutely essential. This paper will brief about the design approach taken for implementation of CCSDS complied telecommand management and processing {Command Operation and Frame Operation Procedure (COP/FOP)} for TTCP developed by SCG.