... WFC3 Data Handbook > Chapter 4: WFC3 Images: Distortion Correction and AstroDrizzle > 4.2 Distortion Corrections and Image Combination . ... In order to produce images that appear uniform for uniform illumination, the WFC3 flat fields include the effect of the variable pixel area across the field. ... AstroDrizzle relies on the Image Distortion Correction Table ( IDCTAB ) and the Detector to Image Distortion Correction ( D2IMFILE, UVIS only) reference files for a description of the WFC3 distortion. ...
ST-ECF Instrument Science Report ACS-2006-02 Wavelength and Flux calibration of the ACS/SBC PR110L and PR130L prisms S. S. Larsen, February 2006 ABSTRACT Wavelength- and flux calibrations are presented for the ACS/SBC PR110L and PR130L slitless spectroscopy modes. ... Wavelength. ... Flux calibration Figure 5: Comparison of sensitivity functions for the SBC prisms derived from the inorbit calibration (solid curves) and the ground calibration from Bohlin et al. 2000 (dashed curves). ...
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... Some of these commands are L A T E X macros, while oth ers belong to plain T E X; no attempt to differen tiate them is made. ``/ --- ordinary space after period. ``! --- negative thin space = \Gamma 1 6 quad; xx``!x yields xxx (math mode). ``'' makes an umlaut, as Ёo. ``# prints a pound sign: #. ``$ prints a dollar sign: $. ``% prints a percent sign: %. ``& prints an ampersand: &. ``' in tabbing environment moves current column to the right of the previous column. ... math mode). ``phi is OE. ...