An algorithm developed by the WFPC IDT to generate flat fields from Earth streak exposures is now implemented in STSDAS. We explain in detail how this algorithm works and possible deficiencies. We also present two associated tools which can be used to modify the flat field obtained from the standard procedure.
Document ID: 19940018011. Accession ID: 94N22484. NASA, Washington, Second Annual Conference on Astronomical Data Analysis Software and Systems. Abstracts; p 53.