Sa Feathering Test

Details Sa Feathering Test Sa Feathering Test

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990hst..prop.3131d&link_type=abstract

HST Proposal ID #3131

Physics

Hst Proposal Id #3131

Scientific paper

Thermal gradients on the SA bi-stems have been analytically implicated as the primary source of vehicle disturbances during every HST orbit at night-day and day-night transition. This test will reconfigure the SAs to a series of off-nominal configurations and observe/record the resulting vehicle disturbances at the critical times. The data will confirm or refute the postulated disturbance sources within the SA assemblies, and will reveal the unique disturbance contributions of the +/- V2 SA's. This test data will characterize any changes required in the design of the replacement SA's.

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