System Throughput and SNR / Exposure Time Estimation . ... Figure 6.11 shows the photometric monitoring data for the standard star GRW+70D5824 (a white dwarf classified DA3; B-V = -0.09) in the WF3 and PC1 for the set of filters which are routinely monitored. ... Figure 6.12 shows the throughput decline in all four chips as a function of days since the last decontamination for the F170W filter. ... Figure 6.12: - Throughput for the F170W Filter Following Decontaminations. ... Time. ...
ST-ECF Instrument Science Report WFC3-2008-15 The TV2 ground calibrations of the WFC3 NIR grisms H. Kuntschner, H. Bushouse, J. R. Walsh, M. KЭmmel July 08, 2008 ABS TRACT Based on thermal vacuum tests (TV2; June - August 2007), the performance of the WFC3 near-IR G102 and G141 grisms has been assessed. ... The setup for G141 is identical. ... 10 ST-ECF Instrument Science Report WFC3-2008-15 Figure 5: Instrument efficiency of various orders for the WFC3 G141 grism as function of wavelength. ...
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