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Hubble Space Telescope
FOC Instrument Science Report #98-01

FOC Instrument Science Report #98-01       February 3, 1998

"FOC PSF Monitoring Program for Cycles 4-6"
by R. Jedrzejewski

Abstract excerpted from the report:

This report describes the PSF monitoring calibration for the FOC for
cycles 4-6.  It also documents the secondary mirror and COSTAR moves 
made since the First Servicing Mission in late 1993.