! $Id: 4815,v 4.1 1994/07/27 14:54:37 pepsa Exp $ coverpage: title_1: COSTAR DOB/FOS M2 MIRROR ARM DEPLOYMENT proposal_for: SME/COS pi_fname: JOHN pi_mi: R pi_lname: TROELTZSCH pi_inst: BALL AEROSPACE pi_country: USA pi_phone: 303 939-5781 keywords_1: COSTAR, SMOV hours_pri: 10.07 num_pri: 1 fos: Y realtime: Y ! end of coverpage abstract: line_1: This proposal describes the activities needed to deploy the Deployable line_2: Optical Bench (DOB) from its stowed position to its operational line_3: position and verify that the deployment will not cause damage to the line_4: other instruments. line_5: The deployment of the DOB is done in two stages in order to prevent line_6: contact between the FOS M2 mirror arm and the other structures within line_7: the Hub region. If the DOB was deployed directly to the operational line_8: position, the FOS M2 mirror could not be deployed safely. An line_9: intermediate position is used to allow the arm to clear both the COSTAR line_10: enclosure and the other structures within the Hub region. As it is line_11: critical that the arm be completely deployed before moving the DOB to line_12: the operational position, a set of check images are taken with the FOS line_13: just before and after the arm deployment. If the deployment was line_14: successful, the FOS will show no signal in the after image. line_16: This proposal requires a mix of real-time activities performed by the line_17: STOCC and stored command activities performed by the STScI SMS. line_18: The implementation of this proposal requires careful attention to the line_19: implementation details as deployment of the FOS M2 mirror could result line_20: in physical damage to the HST instruments as defined in the CARD. ! ! end of abstract general_form_proposers: lname: TROELTZSCH fname: JOHN mi: R inst: BALL AEROSPACE country: USA ! lname: HARTIG fname: GEORGE inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! ! end of general_form_proposers block general_form_text: question: 2 section: 1 line_1: This test will satisfy the following COSTAR ORV Requirements: line_3: 1. Deploy the FOS M2 mirror arm. line_4: 2. Deploy the DOB to the nominal operating position. line_5: 3. Safely perform deployment activities within the pre-defined line_6: COSTAR mechanical envelope. line_8: This test implements SMOV activity P0020. ! question: 3 section: 1 line_1: The following activities will take place during this proposal. line_3: 1. Deploy the DOB to the FOS SAFE position for FOS M2 arm line_4: deployment. line_5: 2. Perform an FOS flux check to verify the FOS apertures are line_6: clear. line_7: 3. Deploy the FOS M2 mirror arm. line_8: 4. Perform FOS flux check as secondary verification of arm line_9: deployment. line_10: 5. Move DOB to the pre-launch best focus nominal position. line_12: This test requires a mix of real-time activities performed line_13: by the STOCC and stored command activities performed by the line_14: STSCI via SMS commanding. line_16: The activities in this proposal involve many COSTAR CARD line_17: items. This proposal requires careful attention during line_18: proposal implementation and execution to ensure the CARD line_19: is correctly implemented. ! question: 3 section: 2 line_1: This test will begin with the COSTAR instrument in HOLD mode. line_2: The DOB will start positioned slightly deployed from the launch line_3: position where the COSTAR functional test left it. All of the line_4: mirror arms will be stowed. The main heaters will be enabled line_5: and the arm heaters will be off. The COSTAR Safing Processor line_6: will be running. line_8: The first step is to deploy the DOB to the FOS SAFE position. line_9: This will be done by the STOCC using PSTOL procedures. The line_10: operate converter will be turned on, the arm heaters will be line_11: enabled, the DOB will be enabled, and the step rate will be set. line_12: A series of seven 2047 move commands will be issued to move line_13: the DOB to a position near the FOS SAFE position. The DOB line_14: secondary postion sensor will be enabled and a series of small line_15: DOB movements will be commanded. After each movement the line_16: secondary position readout will be checked. Once the FOS line_17: SAFE position has been reached and verified based on the DOB line_18: commanded number of steps, the potentiometer, and the secondary line_19: position sensor, the DOB and operate converter will be turned line_20: off placing the COSTAR back into HOLD mode. ! question: 3 section: 3 line_1: Next, an FOS flux measurement will be made as a baseline for line_2: comparison to the post arm deployment flux check. An FOS target line_3: acquisition will be executed to acquire a point source, and line_4: an aperture map will be made. These exposure lines must be line_5: performed using the old FOS aperture locations, not the new COSTAR line_6: FOS aperture positions. line_8: COSTAR will then be transitioned to OPERATE mode via stored line_9: commands, and the stored command block (PKYM2DPY) will be line_10: activated. This block does the following: line_11: 1. Enable FOS M2 arm mechanism line_12: 2. Wait on event flag for ground permission to proceed line_13: 3. Deploy FOS M2 arm line_16: Next, an FOS flux measurement will be made for comparison to line_17: the pre-arm deployment flux check. This check should be made at line_18: the pointing which resulted from the earlier target acquisition. line_19: This means the HST should remain on the target during the arm line_20: deployment. These exposure lines must be performed using the ! question: 3 section: 4 line_1: old FOS aperture locations, not the new COSTAR FOS aperture line_2: positions. line_4: Once the FOS M2 mirror arm has been successfully deployed, line_5: further FOS M2 arm commanding must be prohibited by removing line_6: (or disabling) the arm deploy block from the database. The line_7: next step is to patch the DOB position lower limit in the line_8: flight safing AP mechanism position check table to protect line_9: the FOS arm from accidental stowing if the DOB is command in line_10: the wrong direction. line_12: The FOS M2 arm must be either fully deployed or stowed prior line_13: to moving on to complete the DOB deployment. If this condition line_14: is satisfied, the DOB will be commanded to its pre-launch best line_15: focus position by the STOCC using PSTOL procedures. The line_16: operate converter will be turned on, the DOB will be enabled, line_17: the step rate will be set, and a series of move commands will line_18: be issued to move the DOB to its best focus position. The DOB line_19: and operate converter will then be turned off placing the COSTAR line_20: back into HOLD mode. ! question: 5 section: 1 line_1: Prerequisites: line_2: 1. COSTAR to Hold Mode (prop 4811) completed. line_5: 2. Collimation (prop 4823) successfully completed. line_8: Real-time Requirements: line_10: Three contacts should be planned for the DOB deployment to line_11: the SAFE position. Two contacts should be planned for the line_12: rest of the real-time activities. This will allow additional line_13: attempts in case a contact is not successful. line_15: 1. Real-time command and telemetry links are required by the line_16: MOC for the two DOB deployment activities. line_18: 2. Real-time command and telemetry links are required by the line_19: MOC to set the event flag to deploy the FOS M2 line_20: mirror arm. ! question: 5 section: 2 line_1: 3. A real-time science down link is required to analyze the line_2: FOS flux check data to evaluate FOS M2 mirror arm deployment. line_4: 4. A real-time command and telemetry link is required to patch line_5: the DOB position lower limit in the flight software after line_6: successful FOS M2 arm deployment. line_8: Special Pointing Requests: line_9: 1. The FOS flux checks and the FOS M2 arm deployment should line_10: occur in the same alignment using coarse track lock. ! question: 7 section: 1 line_1: Engineering data will be reduced using the ESS and the COSTAR line_2: data analysis system to generate standard sorts and plots. line_4: Sorts and plots will be used to: line_5: 1. Verify DOB deployment to FOS M2 SAFE position line_6: 2. Verify FOS M2 mirror arm deployment line_7: 3. Verify DOB deployment to pre-launch best focus position line_8: 4. Verify COSTAR electrical performance. line_10: FOS science data will be analyzed in OSS to verify FOS M2 line_11: Arm deployment. line_13: Certain Data Base Updates: line_14: 1. Disabling of FOS arm deployment block following successful line_15: arm deployment. line_16: 2. Change to new FOS aperture locations to reflect FOS M2 line_17: mirror arm deployment. line_18: 3. Change the DOB lower safing limit following FOS M2 mirror line_19: deployment. line_21: Possible Data Base Updates: line_22: 1. Telemetry calibration curves line_23: 2. Telemetry limits ! !end of general form text general_form_address: lname: Troeltzsch fname: John mi: R category: PI inst: Ball Aerospace addr_1: P. O. Box 1062 city: Boulder state: CO zip: 80306 country: USA phone: 303 939-5781 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NGC188-255 name_2: GSSSXXXX-XXXX descr_1: J,701,707 pos_1: RA=00H 44M 21.171S +/- 0.01S, pos_2: DEC=+85D 26' 29.10" +/- 0.1" equinox: 2000 pm_or_par: Y pos_epoch_bj: J pos_epoch_yr: 2000.00 ra_pm_val: -0.003858 ra_pm_unct: 0.004194 dec_pm_val: -0.0140 dec_pm_unct: 0.0050 fluxnum_1: 1 fluxval_1: V = 13.42 +/- 0.1 fluxnum_2: 2 fluxval_2: B = 13.61 +/- 0.1 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 2 time_per_exp: 30M priority: 1 req_1: REQ UPLINK;RT ANALYSIS; req_2: CYCLE 3 / 1.0-10.0 comment_1: DEPLOY DOB TO FOS SAFE POSITION comment_2: EXECUTE PSTOL KHOLDOP, KENDOB,KDOBMOV, comment_3: KDOBLED, KDSDOB, KOPHOLD comment_4: COMMAND OPPORTUNITY 1. ! linenum: 2.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 2 time_per_exp: 30M priority: 1 req_1: REQ UPLINK;RT ANALYSIS; comment_1: DEPLOY DOB TO FOS SAFE POSITION comment_2: EXECUTE PSTOL KHOLDOP, KENDOB, comment_3: KDOBMOV, KDOBLED, KDSDOB,KOPHOLD comment_4: COMMAND OPPORTUNITY 2 comment_5: AFTER 1.0 BY 1.5H +/- 0.5H comment_6: MOVED BECAUSE OF TRANS CONFLICTS ! linenum: 3.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 2 time_per_exp: 30M priority: 1 req_1: REQ UPLINK;RT ANALYSIS; comment_1: DEPLOY DOB TO FOS SAFE POSITION comment_2: EXECUTE PSTOL KHOLDOP, KENDOB, comment_3: KDOBMOV, KDOBLED, KDSDOB, KOPHOLD comment_4: COMMAND OPPORTUNITY 3 comment_5: AFTER 2.0 BY 1.5H +/- 0.5H; comment_6: MOVED BECAUSE OF TRANS CONFLICTS ! linenum: 4.000 targname: NGC188-255 config: FOS/RD opmode: ACQ/BINARY aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 1.1S fluxnum_1: 1 fluxnum_2: 2 priority: 1 req_1: ONBOARD ACQ FOR 4.5; req_2: AFTER 3.0 BY 9H +/- 1H; comment_1: USE PRE-COSTAR APERTURE LOCATIONS FOR comment_2: FOS ! linenum: 4.500 targname: NGC188-255 config: FOS/RD opmode: ACQ aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 1.0M fluxnum_1: 1 fluxnum_2: 2 priority: 1 req_1: RT ANALYSIS; comment_1: USE PRE-COSTAR APERTURE LOCATIONS FOR comment_2: FOS ! linenum: 5.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 20M priority: 1 req_1: REQ UPLINK;RT ANALYSIS; req_2: AFTER 4.5 BY 1H +/- 1H; req_3: SEQ 5-6; comment_1: SET EVENT FLAG TO DEPLOY FOS M2 comment_2: USE PSTOL: MEVFLAG comment_3: COSTAR IN OPERATE, EXECUTE comment_4: INSTRUCTION CKDEPLOY comment_6: COMMAND OPPORTUNITY 1. ! linenum: 5.500 targname: NGC188-255 config: FOS/RD opmode: ACCUM aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 1.0M fluxnum_1: 1 fluxnum_2: 2 priority: 1 comment_1: DUMMY FOR FGS REACQ ! linenum: 6.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 20M priority: 1 req_1: REQ UPLINK;RT ANALYSIS; req_2: AFTER 5.0 BY 1H +/- 0.5H; comment_1: SET EVENT FLAG TO DEPLOY FOS M2 comment_2: USE PSTOL: MEVFLAG comment_3: COSTAR IN OPERATE, EXECUTE comment_4: INSTRUCTION CKDEPLOY comment_6: COMMAND OPPORTUNITY 2. ! linenum: 7.000 targname: NGC188-255 config: FOS/RD opmode: ACQ aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 1.0M fluxnum_1: 1 fluxnum_2: 2 priority: 1 req_1: RT ANALYSIS; req_2: AFTER 6.0 BY 1H +/- 1.0H; comment_1: USE PRE-COSTAR APERTURE LOCATIONS FOR comment_2: FOS ! linenum: 8.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 10M priority: 1 req_1: REQ UPLINK;RT ANALYSIS; req_2: AFTER 7.0 BY 1.0H +/- 0.5H; comment_1: PATCH DOB POS LOW SAFE LIMIT comment_2: USE PSTOL: KDOBSLIM comment_3: DO ONLY IF FOS M2 DEPLOYED. ! linenum: 9.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 30M priority: 1 req_1: REQ UPLINK;RT ANALYSIS; req_2: AFTER 8.0 BY 1H +/- 0.5H; comment_1: DEPLOY DOB TO NOMINAL POSITION comment_2: USE PSTOL: KHOLDOP, KENDOB, KDOBMOV, comment_3: KDSDOB, KOPHOLD comment_4: COMMAND OPPORTUNITY 1 ! linenum: 10.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 30M priority: 1 req_1: REQ UPLINK;RT ANALYSIS; req_2: AFTER 9.0 BY 1.5H +/- 0.5H; comment_1: DEPLOY DOB TO NOMINAL POSITION comment_2: USE PSTOL: KHOLDOP, comment_3: KENDOB,KDOBMOV,DSDOB,KOPHOLD, comment_4: COMMAND OPPORTUNITY 2. ! ! end of exposure logsheet ! No scan data records found