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Photoheliograph thermal concepts study. Volume 2: Detailed analysisThe photoheliograph thermal concepts study which was to define and compare the performance of thermal subsystem concepts for each of three photoheliograph designs oriented toward unique solar observation missions is reported. These design and missions are categorized as: (1) A 150-centimeter photoheliograph for large solar observatory (LSO) missions. This design is intended for multiyear orbital operations as a part of a complement of solar telescopes in a free-flying LSO configuration. (2) A 100-centimeter photoheliograph for shuttle sorties. This design is intended for observation periods of up to 2 weeks while mounted in the cargo bay of the shuttle orbiter vehicle. (3) A 100-centimeter photoheliograph for balloon missions. This design is intended to be a design verification unit and precursor to the orbital flight designs. Mission duration is on the order of a single day at an altitude of approximately 24.4 kilometers. For each of these photoheliograph designs, the basic thermal environments, boundary conditions, and applicable thermal control concepts were defined and the interactions between concepts and environments were determined. A baseline thermal control concept was selected for the three classes of photoheliographs described.
Document ID
19730015765
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Date Acquired
September 2, 2013
Publication Date
April 17, 1973
Subject Category
Instrumentation And Photography
Report/Patent Number
ITEK-73-8220-3-VOL-2
NASA-CR-124255
Accession Number
73N24492
Funding Number(s)
CONTRACT_GRANT: NAS8-28520
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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