WFPC2 CYCLE 11 Intflat and Viflat Sweeps and Filter Rotation Anomaly Monitor

Details WFPC2 CYCLE 11 Intflat and Viflat Sweeps and Filter Rotation Anomaly Monitor WFPC2 CYCLE 11 Intflat and Viflat Sweeps and Filter Rotation Anomaly Monitor

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002hst..prop.9597k&link_type=abstract

HST Proposal ID #9597

Computer Science

Hst Proposal Id #9597

Scientific paper

Using intflat observations, this WFPC2 proposal is designed to monitor the pixel-to-pixel flatfield response and provide a linearity check. The intflat sequences, to be done once during the year, are similar to those from the Cycle 10 program 8942. The images will provide a backup database in the event of complete failure of the visflat lamp as well as allow monitoring of the gain ratios. The sweep is a complete set of internal flats, cycling through both shutter blades and both gains. The linearity test consists of a series of intflats in F555W, in each gain and each shutter. As in Cycle 10, we plan to continue to take extra visflat, intflat, and earthflat exposures to test the repeatability of filter wheel motions.

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