WFPC2 F343N Filter Throughput Decline

Details WFPC2 F343N Filter Throughput Decline WFPC2 F343N Filter Throughput Decline

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009wfpc.rept....2g&link_type=abstract

Instrument Science Report WFPC2 2009-002, 7 pages

Physics

Hubble Space Telescope, Hst, Space Telescope Science Institute, Wide Field Camera 2, Wfc2

Scientific paper

Observations of the standard star GRW+70D5824 indicate a ~50% decrease in the throughput of the F343N filter during the WFPC2 mission. The decline appears to be linear with time and is approximately uniform across the field of view. Essentially identical results are obtained for the PC1 and WF3 detectors, and no features corresponding to the ~50% throughput decline are seen in external flats. Post-flight laboratory tests on the filter are needed to determine its current spectral properties.

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