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Stray light analysis of the Diffuse Infrared Background Experiment (DIRBE)The straylight analysis of the diffuse infrared background experiment (DIRBE) on the cosmic background explorer (COBE) mission is discussed. From the statement of work (SOW), the purpose of DIRBE is to measure, or set upper limits on, the spectral and spatial character of the diffuse extra galactic infrared radiation. Diffuse infrared sources within our own galaxy are measured. The required reduction of the unwanted radiation imposes severe design and operating restrictions on the DIRBE instrument. To accomplish its missions, it will operate at a multitude of wavelengths ranging from 1.25 um out to 200 to 300 microns. The operating bands and the required point source normalized irradiance transmittance (PSNIT) are shown. The important straylight concepts in the DIRBE design are reviewed. The model and assumptions used in APART analysis are explained. The limitations due to the scalar theory used in the analysis are outlined.
Document ID
19840018461
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Breault, R. P. (Breault Research Organization Tucson, AZ, United States)
Date Acquired
September 4, 2013
Publication Date
March 23, 1984
Subject Category
Astronomy
Report/Patent Number
NASA-CR-175225
NAS 1.26:175225
Accession Number
84N26529
Funding Number(s)
CONTRACT_GRANT: NAS5-27274
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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