Internal image motion compensation system for the Shuttle Infrared Telescope FacilityThe Shuttle Infrared Telescope Facility (SIRTF) is being designed as a 1-m, cryogenically cooled telescope capable of a thirty-fold improvement over currently available infrared instruments. The SIRTF, mounted in the Orbiter bay on the Instrument Pointing System (IPS), requires that the image at the focal plane be stabilized to better than 0.1 arcsec with an absolute accuracy of 1 arcsec in order to attain this goal. Current estimates of IPS performance for both stability and accuracy indicate that additional stabilization will be necessary to meet the SIRTF requirements. An Image Motion Compensation (IMC) system, utilizing a Charge Coupled Device (CCD) star tracker located at the focal plane and a steerable mirror in the SIRTF optical path, has been designed to work in conjunction with the IPS.
Document ID
19800053257
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Lorell, K. R. (NASA Ames Research Center Space Projects Div., Moffett Field, Calif., United States)
Parsons, E. K. (NASA Ames Research Center Moffett Field, CA, United States)
Powell, J. D. (Stanford University Stanford, Calif., United States)