NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Thermal vacuum testing techniques for spacecraftCesium frequency standards are to be flown on the NTS-2 satellite which is a program conducted to develop technology and time standards for NAVSTAR Global Positioning System. Mission requirements for the thermal design of this frequency standard called for a low nominal temperature (15 C) and the removal of most of the heat generated by the standard from the spacecraft. The test program run to determine the thermal properties of the frequency standard is described. A simulator was constructed for these tests. Special mathematical analysis techniques were developed and were used to predict the thermal environment for different orbital conditions. Thermal vacuum tests of the flight frequency standard and the integrated spacecraft demonstrated the validity of this technique.
Document ID
19790010871
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Nichols, S. A.
(Naval Research Lab. Washington, DC, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Publication Information
Publication: NASA. Goddard Space Flight Center Ninth Conf. on Space Simulation
Subject Category
Ground Support Systems And Facilities (Space)
Accession Number
79N19042
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available