! $Id: 5254,v 4.1 1994/07/27 16:09:27 pepsa Exp $ coverpage: title_1: GHRS SMOV SIDE 1 ACTIVATION proposal_for: SME/HRS pi_fname: JOE pi_lname: SKAPIK pi_inst: ST SCI pi_country: USA pi_phone: 410-338-4948 hours_par: 0.34 hrs: Y pi_position: GHRS INST ENG ! end of coverpage abstract: line_1: This activity represents a plan for the reactivation line_2: of side 1 of the GHRS. The goal of each step of this line_3: proposal is to verify the stability of the side 1 low line_4: voltage power supply. Each step will be of a longer line_5: duration and/or increased power load. If no problems line_6: are seen in the side 1 low voltage supply during the line_7: execution of these exposure lines, a test of the side line_8: 1 high voltage will be allowed. ! ! end of abstract general_form_proposers: lname: SKAPIK fname: JOE inst: ST SCI country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: GHRS Side 1 Initial Activation line_2: ------------------------------ line_3: Lines 10-11, 20-21, 30-31 line_4: The first step in the reactivation of GHRS side 1 line_5: is to turn on the side 1 low voltage power supply line_6: for 10 minutes. The turn on command will be sent line_7: from the ground and the command link will be maintained line_8: for the duration of the test so the off command can line_9: be sent if telemetry shows a failure in the power line_10: supply. The side 1 low voltage power supply will be line_11: turned off by stored commanding. The GHRS safing line_12: recovery sequence will be included in stored commanding line_13: to clean up from a possible safing event. This activity line_14: will be executed 3 times before moving on to the Short line_15: Stability Check. ! question: 3 section: 2 line_1: GHRS Side 1 Short Stability Check line_2: --------------------------------- line_3: Lines 40-42, 50-52, 60-62 line_4: After Initial Activation has been completed, the line_5: LVPS-1 cycle time will be increased to 1 hour. line_6: The turn on command will be sent from the ground line_7: with the command link maintained for 10 minutes. line_8: If a LVPS-1 failure is seen during this time the line_9: off command will be sent from the ground. Telemetry line_10: will be available for the remainder of the hour. line_11: LVPS-1 will be turned off by stored commanding at line_12: the end of the hour. The GHRS safing recovery sequence line_13: will be included in stored commanding to clean up from line_14: a possible safing event. This activity will be executed line_15: 3 times before moving on to the Extended Stability Check. ! question: 3 section: 3 line_1: GHRS Side 1 Extended Stability Check line_2: ------------------------------------ line_3: Lines 70-72, 80-82, 90-92 line_4: After the Short Stability Check, the LVPS-1 on time line_5: will be increased to 1 day. LVPS-1 will be turned on line_6: with stored commanding during a 10 minute command line_7: uplink. If a LVPS-1 failure is seen during this time line_8: the off command will be sent from the ground. The line_9: side 2 science data interface test will be started at line_10: the beginning of this check to supply additional test line_11: data in the event of side 2 data being routed through line_12: side 1. No other GHRS activity may be scheduled during line_13: this test. LVPS-1 will be turned off by stored commanding line_14: at the end of the day. The GHRS safing recovery sequence line_15: will be included in stored commanding to clean up from line_16: a possible safing event. This activity will be executed line_17: 3 times before moving on to the Initial DEB Activation. ! question: 3 section: 4 line_1: GHRS Side 1 Initial DEB Activation line_2: ---------------------------------- line_3: Lines 100-102, 110-112, 120-122 line_4: After the Extended Stability Check, the side 1 line_5: Detector Electronics Boxes will be turned on to line_6: test the stability of the LVPS-1 at the higher line_7: operating tempertures. LVPS-1 will be turned on line_8: with stored commanding during a 10 minute command line_9: uplink. If a LVPS-1 failure is seen during this time line_10: the off command will be sent from the ground. The line_11: side 2 science data interface test will be started at line_12: the beginning of this check to supply additional test line_13: data in the event of side 2 data being routed through line_14: side 1. No other GHRS activity may be scheduled during line_15: this test. Three hours after the LVPS-1 turn on, each line_16: bank of the DEB will be turned on at three hour intervals. line_17: Three hours is allowed between each power on command so line_18: that the instrument can reach a thermal equilibrum. LVPS-1 line_19: and the DEB's will be turned off by stored commanding line_20: at the end of the 15 hour period. The GHRS safing line_21: recovery sequence will be included in stored commanding line_22: to clean up from a possible safing event. This activity line_23: will be executed 3 times to complete this proposal. ! question: 5 section: 1 line_1: PREREQUISITIES: line_2: Proposal 4753 GHRS Dectector 2 Initial Operations line_3: (Act Sum GHRS-16). ! !end of general form text general_form_address: lname: SKAPIK fname: JOE category: PI inst: ST SCI addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE state: MD zip: 21218 country: USA ! ! end of general_form_address records ! No fixed target records found ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 10.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: RT ANALYSIS; REQ UPLINK; req_2: SEQ 10-11 NO GAP; req_4: CYCLE 4/10-122; comment_1: STOCC TO CMD LVPS1 ON, comment_2: PSTOL: HRSLVNF(1,1) ! linenum: 11.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 6M priority: 1 req_1: RT ANALYSIS comment_1: ATTACH LVPS1 OFF SPECIAL comment_2: COMMANDING HERE, comment_3: ATTACH GHRS SAFE RECOVERY comment_4: SEQUENCE HERE ! linenum: 20.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: RT ANALYSIS; REQ UPLINK; req_2: SEQ 20-21 NO GAP; req_3: AFTER 11 BY 24H +/- 6H; comment_1: STOCC TO CMD LVPS1 ON, comment_2: PSTOL: HRSLVNF(1,1) ! linenum: 21.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 6M priority: 1 req_1: RT ANALYSIS comment_1: ATTACH LVPS1 OFF SPECIAL comment_2: COMMANDING HERE, comment_3: ATTACH GHRS SAFE RECOVERY comment_4: SEQUENCE HERE ! linenum: 30.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: RT ANALYSIS; REQ UPLINK; req_2: SEQ 30-31 NO GAP; req_3: AFTER 21 BY 24H +/- 6H; comment_1: STOCC TO CMD LVPS1 ON, comment_2: PSTOL: HRSLVNF(1,1) ! linenum: 31.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 6M priority: 1 req_1: RT ANALYSIS comment_1: ATTACH LVPS1 OFF SPECIAL comment_2: COMMANDING HERE, comment_3: ATTACH GHRS SAFE RECOVERY comment_4: SEQUENCE HERE ! linenum: 40.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: RT ANALYSIS; REQ UPLINK; req_2: SEQ 40-42 NO GAP; req_3: AFTER 31 BY 1D; comment_1: STOCC TO CMD LVPS1 ON, comment_2: PSTOL: HRSLVNF(1,1) ! linenum: 41.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 50M priority: 1 req_1: RT ANALYSIS comment_1: MONITOR SIDE 1 TELEMETRY ! linenum: 42.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 6M priority: 1 req_1: RT ANALYSIS comment_1: ATTACH LVPS1 OFF SPECIAL comment_2: COMMANDING HERE, comment_3: ATTACH GHRS SAFE RECOVERY comment_4: SEQUENCE HERE ! linenum: 50.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: RT ANALYSIS; REQ UPLINK; req_2: SEQ 50-52 NO GAP; req_3: AFTER 42 BY 24H +/- 6H; comment_1: STOCC TO CMD LVPS1 ON, comment_2: PSTOL: HRSLVNF(1,1) ! linenum: 51.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 50M priority: 1 req_1: RT ANALYSIS comment_1: MONITOR SIDE 1 TELEMETRY ! linenum: 52.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 6M priority: 1 req_1: RT ANALYSIS comment_1: ATTACH LVPS1 OFF SPECIAL comment_2: COMMANDING HERE, comment_3: ATTACH GHRS SAFE RECOVERY comment_4: SEQUENCE HERE ! linenum: 60.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: RT ANALYSIS; REQ UPLINK; req_2: SEQ 60-62 NO GAP; req_3: AFTER 52 BY 24H +/- 6H; comment_1: STOCC TO CMD LVPS1 ON, comment_2: PSTOL: HRSLVNF(1,1) ! linenum: 61.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 50M priority: 1 req_1: RT ANALYSIS comment_1: MONITOR SIDE 1 TELEMETRY ! linenum: 62.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 6M priority: 1 req_1: RT ANALYSIS comment_1: ATTACH LVPS1 OFF SPECIAL comment_2: COMMANDING HERE, comment_3: ATTACH GHRS SAFE RECOVERY comment_4: SEQUENCE HERE ! linenum: 70.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: RT ANALYSIS; req_2: AFTER 62 BY 1D; comment_1: BEGIN SDIF TEST ON SIDE 2, comment_2: ATTACH LVPS1 ON SPECIAL comment_3: COMMANDING HERE ! linenum: 71.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 15M priority: 1 req_1: AFTER 70 BY 26H +/- 2H; req_2: SEQ 71-72 NO GAP; comment_1: END SDIF TEST ON SIDE 2, comment_2: TEST DURATION DEFINED BY INSTRUCTION comment_3: FOR PREVIOUS LINE. ! linenum: 72.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 6M priority: 1 comment_1: ATTACH GHRS SAFE RECOVERY comment_2: SEQUENCE HERE ! linenum: 80.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: RT ANALYSIS; req_2: AFTER 72 BY 4D +/- 2D; comment_1: BEGIN SDIF TEST ON SIDE 2, comment_2: ATTACH LVPS1 ON SPECIAL comment_3: COMMANDING HERE ! linenum: 81.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 15M priority: 1 req_1: AFTER 80 BY 26H +/- 2H; req_2: SEQ 81-82 NO GAP; comment_1: END SDIF TEST ON SIDE 2, comment_2: TEST DURATION DEFINE BY INSTRUCTION comment_3: FOR PREVIOUS LINE. ! linenum: 82.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 6M priority: 1 comment_1: ATTACH GHRS SAFE RECOVERY comment_2: SEQUENCE HERE ! linenum: 90.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: RT ANALYSIS; req_2: AFTER 82 BY 4D +/- 2D; comment_1: BEGIN SDIF TEST ON SIDE 2, comment_2: ATTACH LVPS1 ON SPECIAL comment_3: COMMANDING HERE ! linenum: 91.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 15M priority: 1 req_1: AFTER 90 BY 26H +/- 2H; req_2: SEQ 91-92 NO GAP; comment_1: END SDIF TEST ON SIDE 2, comment_2: TEST DURATION DEFINE BY INSTRUCTION comment_3: FOR PREVIOUS LINE ! linenum: 92.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 6M priority: 1 comment_1: ATTACH GHRS SAFE RECOVERY comment_2: SEQUENCE HERE ! linenum: 100.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: RT ANALYSIS; req_2: AFTER 92 BY 1D; comment_1: BEGIN SDIF TEST ON SIDE 2, comment_2: ATTACH LVPS1 AND DEB1 ON comment_3: SPECIAL COMMANDING HERE ! linenum: 101.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 15M priority: 1 req_1: AFTER 100 BY 17H +/- 2H; req_2: SEQ 101-102 NO GAP; comment_1: END SDIF TEST ON SIDE 2, comment_2: TEST DURATION DEFINED BY INSTRUCTION comment_3: FOR PREVIOUS LINE. ! linenum: 102.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 6M priority: 1 comment_1: ATTACH GHRS SAFE RECOVERY comment_2: SEQUENCE HERE ! linenum: 110.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: RT ANALYSIS; req_2: AFTER 102 BY 85H +/- 6H; comment_1: BEGIN SDIF TEST ON SIDE 2, comment_2: ATTACH LVPS1 AND DEB1 ON comment_3: SPECIAL COMMANDING HERE. ! linenum: 111.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 15M priority: 1 req_1: AFTER 110 BY 17H +/- 2H; req_2: SEQ 111-112 NO GAP; comment_1: END SDIF TEST ON SIDE 2, comment_2: TEST DURATION DEFINED BY INSTRUCTION comment_3: FOR PREVIOUS LINE. ! linenum: 112.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 6M priority: 1 comment_1: ATTACH GHRS SAFE RECOVERY comment_2: SEQUENCE HERE ! linenum: 120.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: RT ANALYSIS; req_2: AFTER 112 BY 85H +/- 6H; comment_1: BEGIN SDIF TEST ON SIDE 2, comment_2: ATTACH LVPS1 AND DEB1 ON comment_3: SPECIAL COMMANDING HERE ! linenum: 121.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 15M priority: 1 req_1: AFTER 120 BY 17H +/- 2H; req_2: SEQ 121-122 NO GAP; comment_1: END SDIF TEST ON SIDE 2, comment_2: TEST DURATION DEFINED BY INSTRUCTION comment_3: FOR PREVIOUS LINE. ! linenum: 122.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 6M priority: 1 comment_1: ATTACH GHRS SAFE RECOVERY comment_2: SEQUENCE HERE ! ! end of exposure logsheet ! No scan data records found