Shuttle orbiter stellar-inertial reference systemThe Space Shuttle stellar-inertial reference system is a velocity and attitude data source during flight operations. An overview of the reference system is presented as well as specifics discussing design concepts, functional operation, and performance capabilities. Techniques for star sighting and inertial measurement unit alignment and calibration are described, and alignment accuracy, star tracker capability, and gyro and accelerometer accuracy are discussed, with emphasis on flight test results. Test programs have confirmed that the system meets performance requirements such as being accurate to within 0.26 degree at the 400,000 foot altitude entry interface in order to execute an accurate touchdown, as well as demonstrating reusability, payload capability, and operational flexibility. Growth possibilities, such as the implementation of rendezvous target tracking, are discussed.
Document ID
19820055428
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Smith, F. E. (Rockwell International Corp. Downey, CA, United States)
Campbell, M. E. (Rockwell International Corp. Space Transportation and Systems Group, Downey, CA, United States)
Blucker, T. J. (Rockwell International Corp. Downey, CA, United States)
Manry, C. E. (Rockwell International Corp. Downey, CA, United States)
Saulietis, I. (NASA Johnson Space Center Houston, TX, United States)