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WFPC2 TIR Abstract

WFPC2 Technical Instrument Report 97-01:

Results of the WFPC2 SMOV Relative Photometry Check

-Whitmore, Gonzaga, and Heyer

The photometric throughput of the WFPC2 was essentially unaffected by the 1997 servicing mission. The mean change in throughput is observed/predicted = 0.9984+/-0.0023. The largest deviation is a decline of 0.4+/-0.2% in the PC1. Even this should be considered tentative until new observations become available during the next few months, since it represents only a 2-sigma deviation.

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