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AIROscope: Ames infrared balloon-borne telescopeA balloon-borne telescope system designed for astronomical observations at infrared wavelengths is discussed. The telescope is gyro-stabilized with updated pointing information derived from television, star tracker, or ground commands. The television system furnishes both course and fine acquisition after initial orientation using a pair of fluxgate servo compasses. Command and control is by a UHF link with 256 commands available. Scientific and engineering data are telemetered to the ground station via narrow band F.M. in the L band. The ground station displays all scientific, engineering and status information during the flights and records the command and telemetry digital bit stream for detailed analysis. The AIROscope telescope has a 28-inch diameter primary mirror and Dall-Kirkham optics. The beam is modulated by oscillating a secondary mirror at 11 or 25 Hz with provision for left or right beam fixed positions by command.
Document ID
19750004675
Document Type
Conference Paper
Authors
Koontz, O. L. (NASA Ames Research Center Moffett Field, CA, United States)
Scott, S. G. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 8, 2013
Publication Date
November 1, 1974
Publication Information
Publication: Telescope Systems for Balloon-Borne Res.
Subject Category
ASTRONOMY
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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