! File: 2183C.PROP ! Database: PEPDB ! Date: 17-FEB-1994:02:45:33 coverpage: title_1: MOVING TARGET TRACKING VERIFICATION TEST proposal_for: OV/OLT pi_fname: RODGER pi_lname: DOXSEY pi_inst: STSCI pi_country: USA pi_phone: 301-338-4750 hours_pri: 4.20 num_pri: 18 wf_pc: X time_crit: X ! end of coverpage abstract: line_1: TEST OBJECTIVE: line_2: Verify that the on-board parallax computation works properly for solar system line_3: distance targets specified by a user supplied ephemeris. Verify that the line_4: type-48 and type-51 commands executed by the on-board PGS software routines line_5: work properly for tracking moving targets specified by a user supplied line_6: ephemeris. Finally, verify that both the parallax and type-48 commands and the line_7: parallax and type-51 commands work properly together. ! ! end of abstract general_form_proposers: lname: BROWN fname: BOB inst: ST SCI country: USA ! lname: NURRE fname: JERRY inst: MSFC country: USA ! lname: CALDWELL fname: JOHN inst: SUNY country: USA ! lname: DOXSEY fname: RODGER inst: ST SCI country: USA ! lname: STOCKMAN fname: PETER inst: ST SCI country: USA ! ! end of general_form_proposers block general_form_text: question: 2 section: 1 line_1: The moving target tests proposed for this moving target tracking test verifies line_2: the operation of the on-board moving target software through the use of user line_3: supplied ephemerides against a static astrometric starfield (NGC188). The line_4: first two test check out the parallax correction flight software. Two parallax line_5: values are chosen, one at 0.5A.U. relative to the earth, the other at 1.0 A.U. line_6: Each of three consecutive 10 minute PC exposures are actually composed of line_7: alternating periods of the shutter being open (20 seconds) and closed (100 line_8: seconds). The PC CCDs are readout only after the last of the 5 shutter open line_9: periods. line_11: This method of PC exposure produces a sequence of 5 staggered streaks of the line_12: star field. This data together with the PCS/FGS telemetry data is reduced to line_13: check the validity of the parallax corrections. Short exposure guard frames line_14: use a fixed target close to the endpoints of the user supplied ephemeris for line_15: each test. These bracket the series of 10 minute exposures and provide the line_16: basic reference data for the astrometric star field. line_17: The third test uses a user supplied ephemeris that simulates a distant solar line_18: system object with relatively simple non-linear motion against a static line_19: astrometric star field. The SMS will require use of the type-48 command with line_20: simplified secondary planetary motion coefficients to control the PCS. No line_21: parallax corrections are performed. The exposures follow the same format as line_22: described above for the parallax tests. ! question: 2 section: 2 line_1: The fourth test uses a user supplied ephemeris that simulates a distant solar line_2: system object with relatively simple linear motion against a static astrometric line_3: star field. The SMS will require use of the type-51 command with profiled slew line_4: rate and acceleration parameters to control the PCS. No parallax corrections line_5: ar performed. The exposures follow the same format as described above for the line_6: parallax tests. line_8: The fifth test uses a user supplied ephemeris that simulates a solar system line_9: object with a complex non-linear motion against a static astrometric star line_10: field. Such an ephemeris, for example, might simulate a solar system satellite line_11: undergoing maximum elongation as seen from the earth. The SMS will require use line_12: of the type-48 command as in the third test and a parallax correction for 0.5 line_13: A.U. The exposures follow the same format as described above for the parallax line_14: tests. line_16: The sixth test uses a user supplied ephemeris that simulates a solar system line_17: object with a complex linear motion against a static astrometric star field. line_18: It is difficult to imagine a naturally occurring object that would undergo such line_19: motion. However, this test will serve as an approximation to more complex line_20: motion through the use of a piece-wise continuous ephemeris over very short line_21: time periods. The SMS will require use of the type-51 command as in the fourth line_22: test and a parallax correction of 0.5 A.U. The exposures follow the same line_23: format as described above for the parallax tests. ! question: 3 section: 1 line_1: Test Procedure: line_2: --------------- line_3: The general observing strategy is as follows: line_5: 1) Take a short exposure with the WF/PC in PC mode. line_7: 2) Start the ST moving (via one of the following: parallax, polynomials, line_8: parallax and polynominals, profiled slew or parallax and profiled slew). line_10: 3) Take three 10 minute PC exposures. line_11: Use the Take Data Flag and the WF/PC Applications Processor (AP) to open line_12: and close the shutter five times during each exposure. This will provide line_13: reference times in the data headers and create gaps in the star trails line_14: during the PC exposure. The star trails will be analyzed later to verify line_15: proper tracking. line_17: 4) Stop the ST motion. line_19: 5) Take a second short PC exposure. line_21: A more detailed test procedure follows: ! question: 3 section: 2 line_1: * Configure the WF/PC * line_3: 1) Configure the WF/PC to the Planetary Camera mode (PC - IMAGE) line_4: 2) Select all 4 PC CCDs for the field of view (ALL) line_5: 3) Select the V filter (F569W) line_7: * Test 1 - Parallax Setting No. 1 * line_9: 4) Start no gap sequence of activity line_10: 5) Acquire Target Field No. 1 line_11: 6) Set parallax flag for no correction line_12: 7) Take a 1 second PC guard frame exposure then readout (READ=YES) line_13: 8) Set parallax for distance of 0.5A.U. line_14: 9) Take 20 second PC exposure with no readout (READ=NO) line_15: 10) Wait 100 seconds line_16: 11) Repeat steps 9 and 10 three times line_17: 12) Take 20 second PC exposure with readout (READ=OUT) line_18: 13) Repeat steps 9 through 12 two times line_19: 14) Repeat steps 6 and 7 line_20: 15) End no gap sequence of activity ! question: 3 section: 3 line_1: * Test 2 - Parallax Setting No. 2 * line_3: 16) Start no gap sequence of activity line_4: 17) Acquire Target Field No. 2 line_5: 18) Repeat steps 6 and 7 line_6: 19) Set parallax for distance of 1.0A.U. line_7: 20) Repeat steps 9 through 14 line_8: 21) End no gap sequence of activity line_10: * Test 3 - Test of type-48 Command * line_12: 22) Start no gap sequence of activity line_13: 23) Acquire Target Field No. 3 line_14: 24) Repeat steps 6 and 7 line_15: 25) Turn off 38-type parallax correction flag line_16: 26) Repeat steps 9 through 14 (use of tyep-48 commands with simplified line_17: secondary planetary motion coefficients for simple motion) line_18: 27) End no gap sequence of activity ! question: 3 section: 4 line_1: * Test 4 - Test of type-51 Command * line_3: 28) Start no gap sequence of activity line_4: 29) Acquire Target Field No. 4 line_5: 30) Repeat steps 6 and 7 line_6: 31) Turn off 38-type parallax correction flag line_7: 32) Repeat steps 9 through 14 (use of type-51 commands with profiled slew rate line_8: and acceleration parameters for simple motion) line_9: 33) End no gap sequence of activity line_11: * Test 5 - Combine Parallax Test and use of Type-48 Command * line_13: 34) Start no gap sequence of activity line_14: 35) Acquire Target Field No. 5 line_15: 36) Repeat steps 6 and 7 line_16: 37) Set parallax for distance of 0.5A.U. line_17: 38) Repeat steps 9 through 14 (use of type-48 commands with simplified line_18: secondary planetary motion coefficients for complex motion) line_19: 39) End no gap sequence of activity ! question: 3 section: 5 line_1: * Test 6 - Combine Parallax Test and use of Type-51 Command * line_3: 40) Start no gap sequence of activity line_4: 41) Acquire Target Field No. 6 line_5: 42) Repeat steps 6 and 7 line_6: 43) Set parallax for distance of 0.5A.U. line_7: 44) Repeat steps 9 through 14 (use of type-51 commands with profiled slew rate line_8: and acceleration parameters for complex motion) line_9: 45) End no gap sequence of activity ! question: 4 section: 0 line_1: Submitted as an Observatory Level Test ! question: 5 section: 0 line_1: Special scheduling request: Time-critical observations line_3: Since all targets will be in the form of user supplied ephemerides, the line_4: observations for this OLT will be time-critical. line_6: Test Prerequisites: line_8: - No observations performed during SAA passage line_9: - Optical image quality should be near Level 1 (lambda/8) line_10: - FGS/FGS OV alignments completed line_11: - Acceptable errors of <= +/-0.5 arc seconds for OV phase line_12: - WF/PC: line_13: - Functional checkout line_14: - Cooled to nominal operating temperature line_15: - Preliminary focus setting established line_16: - Geometrical tests completed (OV phase) line_17: - Schedule this OLT during the early to mid OV mission phase line_18: - Schedule test after the Raster/Dwell Scan Verification Test line_19: - Mini-OFAD verification would be highly desireable but not necessary line_20: - Require off-line access to the downlinked PCS/FGS engineering data ! question: 7 section: 0 line_1: Real Time Data Analysis Requirements: line_3: - Not anticipated at this time line_5: Off Line Data Analysis Requirements: line_7: - PASS FGS/SI attitude determination algorithms will be used to reduce line_8: FGS star selector encoder readings to yield the spacecraft attitude line_9: in approximately 5 second intervals throughout the observations. ! question: 8 section: 0 line_1: All ephemerides used in this OLT will be supplied by the proposal team. Note line_2: that the type-38 parallax correction flag is turned off during tests 3 and 4. line_3: Distances specified for these tests must be very large. Also, the type of line_4: command for PCS maneuvering (type-48 or -51) must accompany the appropriate line_5: ephemeris so that the science scheduling team can flag the SMS accordingly. ! question: 9 section: 0 line_1: Results of this OLT will be documented in an STScI Technical Report with line_2: distribution to appropriate personnel. Portions of this test will be presented line_3: at the HST symposium following the SV mission phase. Test results may also be line_4: sumbitted for publication in an appropriate technical journal. ! !end of general form text general_form_address: lname: DOXSEY fname: RODGER category: PI inst: STSCI addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE state: MD zip: 21218 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NGC188-FIELD1A descr_1: FIELD WITHIN NGC188 equinox: 1988 comment_1: TARGET POSITION CORRESPONDS TO comment_2: FIRST POSITION OF USER SUPPLIED comment_3: EPHEMERIS NO.1. fluxnum_1: 1 fluxval_1: V=13 +/-1.0 ! targnum: 2 name_1: NGC188-FIELD1B descr_1: FIELD WITHIN NGC188 equinox: ^ comment_1: TARGET POSITION CORRESPONDS TO comment_2: FIRST POSITION OF USER SUPPLIED comment_3: EPHEMERIS NO.1. fluxval_1: ^ ! targnum: 3 name_1: NGC188-FIELD2A descr_1: FIELD WITHIN NGC188 equinox: ^ comment_1: TARGET POSITION CORRESPONDS TO comment_2: FIRST POSITION OF USER SUPPLIED comment_3: EPHEMERIS NO. 2. fluxval_1: ^ ! targnum: 4 name_1: NGC188-FIELD2B descr_1: FIELD WITHIN NGC188 equinox: ^ comment_1: TARGET POSITION CORRESPONDS TO comment_2: LAST POSITION OF USER SUPPLIED comment_3: EPHEMERIS NO. 2. fluxval_1: ^ ! targnum: 5 name_1: NGC188-FIELD3A descr_1: FIELD WITHIN NGC188 equinox: ^ comment_1: TARGET POSITION CORRESPONDS TO comment_2: FIRST POSITION OF USER SUPPLIED comment_3: EPHEMERIS NO. 3. fluxval_1: ^ ! targnum: 6 name_1: NGC188-FIELD3B descr_1: FIELD WITHIN NGC188 equinox: ^ comment_1: TARGET POSITION CORRESPONDS TO comment_2: LAST POSITION OF USER SUPPLIED comment_3: EPHEMERIS NO. 3. fluxval_1: ^ ! targnum: 7 name_1: NGC188-FIELD4A descr_1: FIELD WITHIN NGC188 equinox: 1988 comment_1: TARGET POSITION CORRESPONDS TO comment_2: FIRST POSITION OF USER SUPPLIED comment_3: EPHEMERIS NO. 4. fluxnum_1: 1 fluxval_1: V=13 +/- 1.0 ! targnum: 8 name_1: NGC188-FIELD4B descr_1: FIELD WITHIN NGC188 equinox: ^ comment_1: TARGET POSITION CORRESPONDS TO comment_2: LAST POSITION OF USER SUPPLIED comment_3: EPHEMERIS NO. 4. fluxval_1: ^ ! targnum: 9 name_1: NGC188-FIELD5A descr_1: FIELD WITHIN NGC188 equinox: ^ comment_1: TARGET POSITION CORRESPONDS TO comment_2: FIRST POSITION OF USER SUPPLIED comment_3: EPHEMERIS NO. 5. fluxval_1: ^ ! targnum: 10 name_1: NGC188-FIELD5B descr_1: FIELD WITHIN NGC188 equinox: ^ comment_1: TARGET POSITION CORRESPONDS TO comment_2: FIRST POSITION OF USER SUPPLIED comment_3: EPHEMERIS NO. 5. fluxval_1: ^ ! targnum: 11 name_1: NGC188-FIELD6A descr_1: FIELD WITHIN NGC188 equinox: ^ comment_1: TARGET POSITION CORRESPONDS TO comment_2: FIRST POSITION OF USER SUPPLIED comment_3: EPHEMERIS NO. 6. fluxval_1: ^ ! targnum: 12 name_1: NGC188-FIELD6B descr_1: FIELD WITHIN NGC188 equinox: ^ comment_1: TARGET POSITION CORRESPONDS TO comment_2: LAST POSITION OF USER SUPPLIED comment_3: EPHEMERIS NO. 6. fluxval_1: ^ ! ! end of fixed targets solar_system_targets: targnum: 101 name_1: TEST-OBJ1 descr_1: SOLAR-SYSTEM TARGET-TEST OBJECT-1 lev1_1: POSITION DEFINED BY A USER lev1_2: SUPPLIED EPHEMERIS FOR TEST lev1_3: OBJECT-1 IN THE DIRECTION OF lev1_4: CLUSTER NGC188.DISTANCE IS 0.5 AU comment_1: TYPE-38 PARALLAX CORRECTION FLAG comment_2: MUST BE ON FOR THIS TARGET. fluxnum_1: 1 fluxval_1: V=13.0 +/- 1.0 ! targnum: 102 name_1: TEST-OBJ2 descr_1: SOLAR-SYSTEM TARGET-TEST OBJECT-2 lev1_1: POSITION DEFINED BY A USER lev1_2: SUPPLIED EPHEMERIS FOR TEST lev1_3: OBJECT-2 IN THE DIRECTION OF lev1_4: CLUSTER NGC188.DISTANCE IS 1.0 AU comment_1: TYPE-38 PARALLAX CORRECTION FLAG comment_2: MUST BE ON FOR THIS TARGET. fluxval_1: ^ ! targnum: 103 name_1: TEST-OBJ3 descr_1: SOLAR-SYSTEM TARGET-TEST OBJECT-3 lev1_1: POSITION DEFINED BY A USER lev1_2: SUPPLIED EPHEMERIS FOR TEST lev1_3: OBJECT-3 IN THE DIRECTION OF lev1_4: CLUST.NGC188.DISTANCE VERY LARGE. comment_1: TYPE-38 PARALLAX CORRECTION FLAG comment_2: MUST BE OFF FOR THIS TARGET. comment_3: USE TYPE-48 COMMAND FOR PCS comment_4: MANEUVERING. fluxval_1: ^ ! targnum: 104 name_1: TEST-OBJ4 descr_1: SOLAR-SYSTEM TARGET-TEST OBJECT-4 lev1_1: POSITION DEFINED BY A USER lev1_2: SUPPLIED EPHEMERIS FOR TEST lev1_3: OBJECT-4 IN THE DIRECTION OF lev1_4: CLUST.NGC188.DISTANCE VERY LARGE. comment_1: TYPE-38 PARALLAX CORRECTION FLAG comment_2: MUST BE OFF FOR THIS TARGET. comment_3: USE TYPE-51 COMMAND FOR PCS comment_4: MANEUVERING. fluxnum_1: 1 fluxval_1: V = 13.0 +/- 1.0 ! targnum: 105 name_1: TEST-OBJ5 descr_1: SOLAR-SYSTEM TARGET-TEST OBJECT-5 lev1_1: POSITION DEFINED BY A USER lev1_2: SUPPLIED EPHEMERIS FOR TEST lev1_3: OBJECT-5 IN THE DIRECTION OF lev1_4: CLUST.NGC188.DISTANCE IS 0.5 AU. comment_1: TYPE-38 PARALLAX CORRECTION FLAG comment_2: MUST BE ON FOR THIS TARGET. comment_3: USE TYPE-48 COMMAND FOR PCS comment_4: MANEUVERING. fluxnum_1: 1 fluxval_1: V=13.0 +/-1.0 ! targnum: 106 name_1: TEST-OBJ6 descr_1: SOLAR-SYSTEM TARGET-TEST OBJECT-6 lev1_1: POSITION DEFINED BY A USER lev1_2: SUPPLIED EPHEMERIS FOR TEST lev1_3: OBJECT-6 IN THE DIRECTION OF lev1_4: CLUST.NGC188.DISTANCE IS 0.5 AU. comment_1: TYPE-38 PARALLAX CORRECTION FLAG comment_2: MUST BE ON FOR THIS TARGET. comment_3: USE TYPE-51 COMMAND FOR PCS comment_4: MANEUVERING. fluxval_1: ^ ! ! end of solar system targets ! No generic target records found exposure_logsheet: linenum: 1.000 sequence_1: DEFINE sequence_2: GUARD targname: # config: PC opmode: IMAGE aperture: ALL sp_element: F569W num_exp: 1 time_per_exp: 1S fluxnum_1: 1 priority: 1 comment_1: GUARD FRAME EXPOSURE. ! linenum: 5.000 sequence_1: DEFINE sequence_2: NORMAL targname: # config: PC opmode: IMAGE aperture: ALL sp_element: F569W num_exp: 1 time_per_exp: 20S fluxnum_1: 1 priority: 1 param_1: READ=NO req_1: SEQ 5-9 NO GAP comment_1: 1 OF 5 PC STAR TRAIL EXPOSURES. ! linenum: 6.000 sequence_1: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ fluxnum_1: ^ priority: ^ param_1: ^ req_1: AFTER 5 BY 120S +/- 1S comment_1: 2 OF 5 PC STAR TRAIL EXPOSURES. ! linenum: 7.000 sequence_1: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ fluxnum_1: ^ priority: ^ param_1: ^ req_1: AFTER 6 BY 120S +/- 1S comment_1: 3 OF 5 PC STAR TRAIL EXPOSURES. ! linenum: 8.000 sequence_1: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ fluxnum_1: ^ priority: ^ param_1: ^ req_1: AFTER 7 BY 120S +/-1S comment_1: 4 OF 5 PC STAR TRAIL EXPOSURES. ! linenum: 9.000 sequence_1: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ fluxnum_1: ^ priority: ^ param_1: READ=YES req_1: AFTER 8 BY 120S +/-1S comment_1: 5 OF 5 PC STAR TRAIL EXPOSURES. ! linenum: 30.000 sequence_1: USE sequence_2: GUARD targname: NGC188-FIELD1A req_1: SEQ 30-34 NO GAP; req_2: AT TBD-PII ! linenum: 31.000 sequence_1: USE sequence_2: NORMAL targname: TEST-OBJ1 comment_1: PARALLAX SET TO 0.5 A.U. ! linenum: 32.000 sequence_1: USE sequence_2: NORMAL targname: ^ comment_1: PARALLAX SET TO 0.5 A.U. ! linenum: 33.000 sequence_1: USE sequence_2: NORMAL targname: ^ comment_1: PARALLAX SET TO 0.5 A.U. ! linenum: 34.000 sequence_1: USE sequence_2: GUARD targname: NGC188-FIELD1B ! linenum: 40.000 sequence_1: USE sequence_2: GUARD targname: NGC188-FIELD2A req_1: SEQ 40-44 NO GAP; req_2: AT TBD-PII ! linenum: 41.000 sequence_1: USE sequence_2: NORMAL targname: TEST-OBJ2 comment_1: PARALLAX SET TO 1.0 A.U. ! linenum: 42.000 sequence_1: USE sequence_2: NORMAL targname: ^ comment_1: PARALLAX SET TO 1.0 A.U. ! linenum: 43.000 sequence_1: USE sequence_2: NORMAL targname: ^ comment_1: PARALLAX SET TO 1.0 A.U. ! linenum: 44.000 sequence_1: USE sequence_2: GUARD targname: NGC188-FIELD2B ! linenum: 50.000 sequence_1: USE sequence_2: GUARD targname: NGC188-FIELD3A req_1: SEQ 50-54 NO GAP; req_2: AT TBD-PII ! linenum: 51.000 sequence_1: USE sequence_2: NORMAL targname: TEST-OBJ3 comment_1: SIMPLE NON-LINEAR MOTION WITH comment_2: DISTANCE SET TO INFINITY. ! linenum: 52.000 sequence_1: USE sequence_2: NORMAL targname: ^ comment_1: SIMPLE NON-LINEAR MOTION WITH comment_2: DISTANCE SET TO INFINITY. ! linenum: 53.000 sequence_1: USE sequence_2: NORMAL targname: ^ comment_1: SIMPLE NON-LINEAR MOTION WITH comment_2: DISTANCE SET TO INIFINITY. ! linenum: 54.000 sequence_1: USE sequence_2: GUARD targname: NGC188-FIELD3B ! linenum: 60.000 sequence_1: USE sequence_2: GUARD targname: NGC188-FIELD4A req_1: SEQ 60-64 NO GAP; req_2: AT TBD-PII ! linenum: 61.000 sequence_1: USE sequence_2: NORMAL targname: TEST-OBJ4 comment_1: SIMPLE LINEAR MOTION WITH DISTANCE comment_2: SET TO INFINITY. ! linenum: 62.000 sequence_1: USE sequence_2: NORMAL targname: ^ comment_1: SIMPLE LINEAR MOTION WITH DISTANCE comment_2: SET TO INFINITY. ! linenum: 63.000 sequence_1: USE sequence_2: NORMAL targname: ^ comment_1: SIMPLE LINEAR MOTION WITH DISTANCE comment_2: SET TO INFINITY. ! linenum: 64.000 sequence_1: USE sequence_2: GUARD targname: NGC188-FIELD4B ! linenum: 70.000 sequence_1: USE sequence_2: GUARD targname: NGC188-FIELD5A req_1: SEQ 70-74 NO GAP; req_2: AT TBD-PII ! linenum: 71.000 sequence_1: USE sequence_2: NORMAL targname: TEST-OBJ5 comment_1: COMPLEX NON-LINEAR MOTION WITH comment_2: DISTANCE SET TO 0.5 A.U. ! linenum: 72.000 sequence_1: USE sequence_2: NORMAL targname: ^ comment_1: COMPLEX NON-LINEAR MOTION WITH comment_2: DISTANCE SET TO 0.5 A.U. ! linenum: 73.000 sequence_1: USE sequence_2: NORMAL targname: ^ comment_1: COMPLEX NON-LINEAR MOTION WITH comment_2: DISTANCE SET TO 0.5 A.U. ! linenum: 74.000 sequence_1: USE sequence_2: GUARD targname: NGC188-FIELD5B ! linenum: 80.000 sequence_1: USE sequence_2: GUARD targname: NGC188-FIELD6A req_1: SEQ 80-84 NO GAP; req_2: AT TBD-PII ! linenum: 81.000 sequence_1: USE sequence_2: NORMAL targname: TEST-OBJ6 comment_1: COMPLEX LINEAR MOTION WITH DISTANCE comment_2: SET TO 0.5 A.U. ! linenum: 82.000 sequence_1: USE sequence_2: NORMAL targname: ^ comment_1: COMPLEX LINEAR MOTION WITH DISTANCE comment_2: SET TO 0.5 A.U. ! linenum: 83.000 sequence_1: USE sequence_2: NORMAL targname: ^ comment_1: COMPLEX LINEAR MOTION WITH DISTANCE comment_2: SET TO 0.5 A.U. ! linenum: 84.000 sequence_1: USE sequence_2: GUARD targname: NGC188-FIELD6B ! ! end of exposure logsheet ! No scan data records found