! File: 5026C.PROP ! Database: PEPDB ! Date: 23-FEB-1994:16:17:10 coverpage: title_1: WF/PC CYCLE 3 CALIBRATION: RAPID INTERNAL MONITOR proposal_for: CAL/WFC pi_title: DR. pi_fname: JOHN pi_mi: W. pi_lname: MACKENTY pi_inst: STSCI pi_country: USA pi_phone: (410) 338-4559 keywords_1: CALIBRATION, FLAT FIELDS wf_pc: X ! end of coverpage abstract: line_1: This test is to take repeated internal flats to test line_2: for contamination buildup on the optical surfaces or line_3: the reappearance of QEH. line_4: Part 1: INTFLATS in F555W are obtained every 4 days line_5: in both WFC and PC to check for measles or daisies line_6: and to monitor scattered light. line_7: Part 2: Sequential INTFLATS in F439W with PC are line_8: obtained every 7 days to check for QEH. ! ! end of abstract general_form_proposers: lname: MACKENTY fname: JOHN mi: W. inst: STSCI country: USA ! lname: BAGGETT fname: SYLVIA mi: M. inst: STSCI country: USA ! ! end of general_form_proposers block general_form_text: question: 2 section: 1 line_1: line_2: This series of observations is required to monitor line_3: the buildup of possible contamination in the WFPC line_4: and the wearing off of the UVflood (return of QEH). ! question: 3 section: 1 line_1: line_2: These data are taken to monitor the buildup of line_3: contamination on rapid timescales. line_5: NOTE THAT THE PARALLEL SPECIAL REQUIREMENT HAS NOT BEEN USED IN line_6: THIS PROPOSAL. USE OF PARALLEL WITH TIMING (REPEAT, AFTER BY