The Infrared Astronomical Satellite /IRAS/ Scientific Data Analysis System /SDAS/ sky flux subsystemThe sky flux subsystem of the Infrared Astronomical Satellite Scientific Data Analysis System is described. Its major output capabilities are (1) the all-sky lune maps (8-arcminute pixel size), (2) galactic plane maps (2-arcminute pixel size) and (3) regional maps of small areas such as extended sources greater than 1-degree in extent. The major processing functions are to (1) merge the CRDD and pointing data, (2) phase the detector streams, (3) compress the detector streams in the in-scan and cross-scan directions, and (4) extract data. Functional diagrams of the various capabilities of the subsystem are given. Although this device is inherently nonimaging, various calibrated and geometrically controlled imaging products are created, suitable for quantitative and qualitative scientific interpretation.
Document ID
19810041574
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Stagner, J. R. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Girard, M. A. (California Institute of Technology, Jet Propulsion Laboratory, Image Processing Laboratory, Pasadena Calif., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1980
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Conference on Applications of Digital Image Processing to Astronomy