On sky testing and preliminary sensor alignment for the SOFIA Telescope

Details On sky testing and preliminary sensor alignment for the SOFIA Telescope On sky testing and preliminary sensor alignment for the SOFIA Telescope

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006spie.6267e..28h&link_type=abstract

Ground-based and Airborne Telescopes. Edited by Stepp, Larry M.. Proceedings of the SPIE, Volume 6267, pp. 62670V (2006).

Computer Science

Performance

Scientific paper

The telescope pointing control of the Stratospheric Observatory for Infrared Astronomy (SOFIA) is achieved during science observations by an array of sensors including three imagers, gyroscopes and accelerometers. In addition, throughout alignment and calibration of the telescope assembly, the High-speed Imaging Photometer for Occultation (HIPO) is used as a reference instrument. A summary of the telescope pointing control concept is given and how HIPO is used to calibrate the telescope reference systems on the sky. A method is introduced using simple maneuvers to perform initial alignment of HIPO, the imagers and the gyroscopes by means of single star observations. During the first on sky testing of the SOFIA telescope, these maneuvers were carried out and the alignment could be improved iteratively. The corresponding alignment accuracies are identified considering repeated measurements, environmental and sensor noise. Inertial and non-inertial observations, as well as measurements over the entire operational elevation range provide additional alignment and sensor performance information. Finally, an overview is presented for future improvements in alignment.

Affiliated with

Also associated with

No associations

Rating

On sky testing and preliminary sensor alignment for the SOFIA Telescope does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On sky testing and preliminary sensor alignment for the SOFIA Telescope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On sky testing and preliminary sensor alignment for the SOFIA Telescope will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1621553