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29 September 2004 Status report on the SOFIA pointing system
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Abstract
After 6.5 years of development, the telescope of the Stratospheric Observatory For Infrared Astronomy, SOFIA has been integrated into the aircraft and is awaiting the final touch-up before first test observations will start. Due to its rather unique environment in the open port of a Boeing 747SP, the telescope optics of SOFIA is exposed to extreme aero-acoustic excitations. The telescope pointing system is equipped with several design features, such as a vibration isolation system, a flexible body control system and -- potentially -- active mass dampers, to handle excitations in different frequency ranges. Final performance features of these systems will only be available after the first test flights, which will happen in the second half of 2004. Here we present a progress report and describe the recent achievements as well as the status of the telescope, and give an update of the SOFIA pointing system, and the planned commissioning tests.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alfred Krabbe and Hans Juergen Kaercher "Status report on the SOFIA pointing system", Proc. SPIE 5495, Astronomical Structures and Mechanisms Technology, (29 September 2004); https://doi.org/10.1117/12.553288
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