! File: 3865C.PROP ! Database: PEPDB ! Date: 19-FEB-1994:22:15:19 coverpage: title_1: JPL K-SPOT STABILITY TEST proposal_for: ENG/WFC pi_fname: DAVID pi_mi: B. pi_lname: GALLAGHER pi_inst: JET PROPULSION LABORATORY pi_country: USA pi_phone: (818) 354-2631 keywords_1: K-SPOTS,WFPC,STABILITY hours_pri: 0.50 num_pri: 22 wf_pc: Y pi_position: WFPC2 DESIGN TEAM ! end of coverpage abstract: line_1: The purpose of this test is to provide on-orbit data to line_2: investigate rotational shifts in the K-spot images observed line_3: since launch. ! ! end of abstract general_form_proposers: lname: GALLAGHER fname: DAVID title: PI mi: B. inst: JPL country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: This proposal will take a series of K-SPOT exposures to line_2: investigate any possible K-spot location dependancy on line_3: number of steps in the pyramid rotation command. line_4: To accomplish this the WFPC microprocessor RAM subroutine line_5: which controls the movement of the pyramid rotator line_6: mechanism must be patched. The pyramid motor, now, is line_7: stepped 332 times to rotate from WFC to PC, or PC to WFC. line_8: The patch will cause the pyramid rotation motor to be line_9: stepped 340 times. line_10: - Four KSPOT exposures will be taken, two WFC and two PC line_11: to establish a "pre-patch" reference for the KSPOT line_12: positions (Exposure Lines 1 through 4). line_13: - The WFPC RAM program will be patched via stored commands. line_14: - The RAM patch *MUST* be verified by examining the RAM line_15: content as reported in the generic engineering downlink line_16: telemetry. If the RAM is not correctly patched then the line_17: WFPC *MUST* be safed from the ground during a generic line_18: forward link. A 4-6 hour gap has been allotted for the line_19: collection and evaluation of the RAM image from line_20: engineering telemetry, and for a Real-Time initiated line_21: safing if the need arises. (Exposure Line 5). line_22: - Three sets of four K-SPOT exposures are taken on line_23: alternate cameras(WFC and PC). The exposures are to be ! question: 3 section: 2 line_1: spaced by at least 30 minutes so as not to overheat the line_2: pyramid rotation motor. (Exposure Lines 6 through 17). line_3: - The RAM is to be re-patched with the original values line_4: which were altered in exposure line 5. The same line_5: engineering data collection, evaluation, and RT safing line_6: opportunity scenario as described for line 5 applies line_7: here as well. (Exposure Line 18) line_8: - Four K-SPOT images, two WFC, two PC, will be taken line_9: following the restoration of the original RAM program line_10: to be compared with the original baseline K-SPOT line_11: images. (Exposure lines 19 through 22). line_13: Note: In each of the pairs of exposure line specified for line_14: a given camera (eg. lines 1 and 2), it is intended that the line_15: second of each of these exposures produce a data readout line_16: from the CCDS which are opposite the camera selected by line_17: the positioning of the pyramid. This will produce K-SPOT line_18: images along the diagonals of the CCDS. ! question: 5 section: 1 line_1: NO OTHER WFPC ACTIVITIES MAY BE INTERLEAVED FROM THE START line_2: OF THE EXECUTION OF EXPOSURE LINE 5 THROUGH THE START OF line_3: EXECUTION OF EXPOSURE LINE 19. line_5: Special Note for SPSS: In order to achieve the required line_6: diagonal K-SPOT image frames, PMDB changes must be made to line_7: qelogsheet AFTER the calendar is created, but BEFORE an line_8: SMS is generated. For WFC exposure lines which contain the line_9: comment "READOUT ALL 4 PC CHIPS" change qelosgheet:config line_10: from WFC to PC after the calendar is generated. For PC line_11: exposure lines which contain the comment "READOUT ALL 4 line_12: WFC CHIPS" change qelosheet:config from PC to WFC after line_13: the calendar is generated. line_15: Note for SPSS: Special commanding instruction/activity line_16: linkage will be required (qgactinst:instr_name) for line_17: exposure lines 5 and 18. line_19: Generic return link engineering telemetry will be required line_20: to verify the integrety of the WFPC RAM patches performed line_21: on exposure lines 5 and 18. This proposal carries NO line_22: RT-ANALYSIS requirements, as the 5H +/-1H spacings are line_23: inserted to collect the WFPC RAM content from the generic ! question: 5 section: 2 line_1: return link engineering data. line_3: Generic forward service (uplink) opportunities will be line_4: used to safe the WFPC in the event that either of the line_5: two WFPC RAM verifications fail. This proposal carries line_6: NO REQUIRES UPLINK requirements, the use of a generic line_7: forward service during the 5H +/- 1 H spacings will be line_8: sufficient. ! question: 7 section: 1 line_1: The data obtained under this proposal will be reduced line_2: in the JPL data analysis facilities by J.Hester. ! !end of general form text general_form_address: lname: GALLAGHER fname: DAVID mi: B. category: PI inst: JET PROPULSION LABORATORY ! lname: GALLAGHER fname: DAVID mi: B. category: PI inst: JET PROPULSION LABORATORY addr_1: M/S 179-225 addr_2: 4800 OAK GROVE DRIVE city: PASADENA state: CA zip: 91109 country: USA phone: (818) 354-2631 from_date: 08-AUG-91 to_date: 08-AUG-93 ! ! end of general_form_address records ! No fixed target records found ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: KSPOTS config: WFC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: DEF priority: 1 param_1: PRE-FLASH=NO req_1: SEQ 1-22; req_2: CYCLE 1 / 1-22 ! linenum: 2.000 targname: KSPOTS config: WFC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: 0.5S priority: 1 param_1: PRE-FLASH=NO comment_1: READOUT ALL 4 PC CHIPS. SEE GF-5. ! linenum: 3.000 targname: KSPOTS config: PC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: DEF priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 30M ! linenum: 4.000 targname: KSPOTS config: WFC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: 0.3S priority: 1 param_1: PRE-FLASH=NO comment_1: READOUT ALL 4 PC CHIPS. SEE GF-5. ! linenum: 5.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 5M priority: 1 req_1: SEQ 5-19 WITHIN 24H comment_1: SPECIAL COMMANDING INSTRUCTION TO comment_2: PATCH RAM LOAD CHANGING . comment_3: PYRAMID STEPS FROM 332 TO 340 REAL- comment_4: TIME ENGINERING EVALUATION REQUIRED comment_5: - SEE GF-3.NO WFPC ACTIVITES MAY BE comment_6: INTERLEAVED UNTIL START OF LINE 19. ! linenum: 6.000 targname: KSPOTS config: WFC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: DEF priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 5 BY 5H +/- 1H ! linenum: 7.000 targname: KSPOTS config: WFC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: 0.5S priority: 1 param_1: PRE-FLASH=NO comment_1: READOUT ALL 4 PC CHIPS. SEE GF-5. ! linenum: 8.000 targname: KSPOTS config: PC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: DEF priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 6 BY 30M ! linenum: 9.000 targname: KSPOTS config: PC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: 0.3S priority: 1 param_1: PRE-FLASH=NO comment_1: READOUT ALL 4 WFC CHIPS. SEE GF-5. ! linenum: 10.000 targname: KSPOTS config: WFC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: DEF priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 8 BY 30M ! linenum: 11.000 targname: KSPOTS config: WFC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: 0.5S priority: 1 param_1: PRE-FLASH=NO comment_1: READOUT ALL 4 PC CHIPS. SEE GF-5. ! linenum: 12.000 targname: KSPOTS config: PC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: DEF priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 10 BY 30M ! linenum: 13.000 targname: KSPOTS config: PC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: 0.3S priority: 1 param_1: PRE-FLASH=NO comment_1: READOUT ALL 4 WFC CHIPS. SEE GF-5. ! linenum: 14.000 targname: KSPOTS config: WFC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: DEF priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 12 BY 30M ! linenum: 15.000 targname: KSPOTS config: WFC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: 0.5S priority: 1 param_1: PRE-FLASH=NO comment_1: READOUT ALL 4 PC CHIPS. SEE GF-5. ! linenum: 16.000 targname: KSPOTS config: PC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: DEF priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 14 BY 30M ! linenum: 17.000 targname: KSPOTS config: PC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: 0.3S priority: 1 param_1: PRE-FLASH=NO comment_1: READOUT ALL 4 WFC CHIPS. SEE GF-5. ! linenum: 18.000 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 5M priority: 1 comment_1: SPECIAL COMMANDING INSTRUCTION comment_2: TO PATCH RAM LOAD comment_3: CHANGING PYRAMID STEPS FROM 340 comment_4: TO 332. REAL-TIME ENGINERRING comment_5: EVALUATION REQUIRED - SEE GF-3. ! linenum: 19.000 targname: KSPOTS config: WFC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: DEF priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 18 BY 5H +/- 1H ! linenum: 20.000 targname: KSPOTS config: WFC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: 0.5S priority: 1 param_1: PRE-FLASH=NO comment_1: READOUT ALL 4 PC CHIPS. SEE GF-5. ! linenum: 21.000 targname: KSPOTS config: PC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: DEF priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 19 BY 30M ! linenum: 22.000 targname: KSPOTS config: PC opmode: IMAGE aperture: ALL sp_element: NONE num_exp: 1 time_per_exp: 0.3S priority: 1 param_1: PURGE=YES, param_2: PRE-FLASH=NO comment_1: READOUT ALL 4 WFC CHIPS. SEE GF-5. ! ! end of exposure logsheet ! No scan data records found