NICMOS Filter Wheel/Mechanisms Mini-Functional Test

Details NICMOS Filter Wheel/Mechanisms Mini-Functional Test NICMOS Filter Wheel/Mechanisms Mini-Functional Test

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001hst..prop.8944s&link_type=abstract

HST Proposal ID #8944

Physics

Hst Proposal Id #8944

Scientific paper

This is an early engineering test to verify the aliveness, functionality, operability, and electro-mechanical calibration of the NICMOS filter wheel motors and assembly. This is the FIRST use of the NICMOS filter wheel mechanisms since they were disabled by ground command in January, 1999. This test has been designed to obviate concerns over possible deformation or breakage of the fitter wheel "soda-straw" shafts due to excess rotational drag torque and/or bending moments which may be imparted due to changes in the dewar metrology from warm-up/cool-down. This test should be executed after the VCS {and filter wheel housing} has reached and approximately equilibrated to its nominal Cycle 11 operating temperature.

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