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Proceedings Paper

SOFIA tracking subsystem: results of assembly, operation, and calibration tests
Author(s): Hermann Bittner; Matthias Erdmann; Juergen Schmolke; Klaus Lattner; Torsten Levin; Markus Erhard
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Paper Abstract

The SOFIA airborne telescope has a Tracking Subsystem for stellar acquisition, tracking, and pointing. The system has three high-performance imagers: the boresighted wide field (6 degrees FOV) and fine field imagers (70 arcminutes FOV), and the main-telescope-optics sharing focal plane imager (8 arcminutes FOV). The imagers are controlled by 3 CCD head controllers, an overall imager controller, and a tracker controller providing the tracking error signals from the objects observed by the imagers. There have been several test steps in the assembly, integration, and verification of the Tracking Subsystem. The paper presents the fully integrated system as actually built, the results of the thermal-vacuum and vibration tests of the fine field imager, the tested operational/functional S/W performance, as well as the results of the geometric and radiometric calibrations of the imagers.

Paper Details

Date Published: 3 March 2003
PDF: 12 pages
Proc. SPIE 4857, Airborne Telescope Systems II, (3 March 2003); doi: 10.1117/12.458639
Show Author Affiliations
Hermann Bittner, Kayser-Threde GmbH (Germany)
Matthias Erdmann, Kayser-Threde GmbH (Germany)
Juergen Schmolke, Kayser-Threde GmbH (Germany)
Klaus Lattner, Kayser-Threde GmbH (Germany)
Torsten Levin, Kayser-Threde GmbH (Germany)
Markus Erhard, Kayser-Threde GmbH (Germany)

Published in SPIE Proceedings Vol. 4857:
Airborne Telescope Systems II
Ramsey K. Melugin; Hans-Peter Roeser, Editor(s)

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