Abstract

KITSAT-3 is a 3-axis stabilized technology demonstration satellite weighing 100 kg and was launched into the 720 km altitude sun synchronous circular orbit by Indian PSLV rocket in May, 1999. As we have only one command groundstation, the contact time is limited and hence, satellite operation was required to be highly autonomous. KITSAT-3 is heavily dependent on centralized on-board computer (OBC) for its autonomous in-orbit operation. Autonomous operation of KTTSAT-3 is implemented in the normal mode housekeeping and the safe mode operation. Battery charge control, operation mode based attitude control, scenario based payload operation and flexible on-board software management are the techniques used for the normal mode operation. For the safe mode operation, two levels of power safe mode control, OBC back-up mode and attitude safe mode control are used. Initial in-orbit operation was successful and the autonomous operation has been achieved by the implemented design concepts.

Full Text

Paper version not known (Free)

Published Version

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.