Optical Filters . The WFPC2 camera configuration and filter set require a substantial number of apertures for full utilization of its capabilities. ... An additional set of aperture names have been defined for use with the WFPC2 filters which require partial rotations. ... The pixel coordinates of these apertures will be reviewed on a regular basis to reflect changes in CCD and filter cosmetics. ... The aperture name is generally the same as the (rotated) filter name. ...
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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