WFPC File Names - HST
Files names and extensions used for WFPC (W)
|Raw data files
|It contains the WFPC image data with the readout from each CCD detector in each group. Hence from 1 to 4 groups may be present. Keywords in the header are used to select the various processing steps and to specify the names of the necessary reference files.
|The DQF must consist of short integers and have the same dimensions and number of groups as the Science Image file. Each pixel indicates the quality of the corresponding pixel in the Science Image file. Zero valued pixels indicate "good" pixels in the Science Image file and nonzero valued pixels flag various problems or potential problems with their corresponding pixels.
|It contains the two "engineering" column and, for FULL mode, the 12 columns of overclocked pixels. It has the same number of groups as the Science Image file.
|The EED quality file must consist of short integers and have the same dimensions and number of groups as the EED file. Each pixel indicates the quality of the corresponding pixel in the EED file. Zero valued pixels are "good" pixels in the EED file and nonzero valued pixels flag various problems or potential problems with their corresponding pixels.
|Telemetry values and spacecraft operation data.
|Text file containing jitter statistics and other data quality information
|Calibrated data files
|It is in REAL format (although an option is available to provide FITS-like scaling to SHORT or LONG integers). Extreme values resulting from input data values outside of the range of the WF/PC-II AtoD converter (0 to 4095) are edited to limit the range of values in the output image. These pixels are set to the value of the keyword RSDPFILL and flagged in the DQF.
|The DQF for the Calibrated Science Image file follows the same conventions as the Science Image Data Quality file. This contains the result of bitwise ORing, the input DQF, and all DQFs associated with reference files used in the processing of the Science Image file.
|Histogram of science data pixel values.