UVCS MISSION LOG ---------------- Date: 15 March 2006 ----- Last revision: 21 March 2006 (Wu) -------------- File Name: 2006.03.17.a.log ---------- Compiled by: M. Uzzo, R. Wu ------------ UVCS Activity: UVCS in Soft Safe Configuration with OVI Detector ------------- Powered On and High Voltage Powered Off Recover UVCS from Soft Safe Configuration Load and Start Flat Field Count Rate Study for March 17 2006 Load OVI Detector Diagnostic for March 17 2006 Load Dark Count Study for March 17 - 20 2006 SOHO Activity: -------------- EOF Staff: L. Gardner: Lead Scientist ---------- M. Uzzo: Commander, Planner Y.-K. Ko R. Wu Command file: 06.03.17.14:26:06.cmd.log Activity: --------- 1) Thermal Equilibration of UVCS in Soft Safe Configuration Sequence: none SCI_SPEC: UVCS is recovered from Hard Safe Configuration into a Soft Safe configuration in order to allow UVCS temperatures to return to nominal. Detector High Voltage remains ramped down and turned off OVI Slitwidth is 100 microns, instrument is rolled to the nominal North East (30475 Engineering Units), and Mirror / Occulter is set at 1.5 Solar Radii with 1.5 mm overocculting. UVCS Aperture Door is opened at this time. Internal Mirror / Occulter Heater set to 0% duty cycle. FOT told to continue to use UVCS ESR Limit Table. Expected Limit Violation sheets submitted to FOT via SOC for any expected limit violations during this time. OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2006.03.17.17:00 end: 2006.03.17.19:49 ONUMs = 22285 Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 64.3 Degrees (30475) - Mirror/Occulter: 1.5 Ro 1.5 mm overocculting - LYA Slit: 100 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 164600 - LYA HIGH VOLTAGE RAMPED DOWN AND POWERED OFF - OVI HIGH VOLTAGE RAMPED DOWN AND POWERED OFF - VLD HIGH VOLTAGE RAMPED DOWN AND POWERED OFF - LYA DETECTOR POWERED OFF - VLD DETECTOR POWERED OFF - OVI mask: msk_000303_OVI in slot 3 Fits Files: GAP between 03/17/06|04:14:49(14943) and 03/17/06|07:14:32(15818) 2) UVCS Recovery from Soft Safe Configuration Sequence: Manual SCI_SPEC: Note: Times are approximate. OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2006.03.17.19:49 end: 2006.03.17.19:54 ONUMs = 22285 Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 64.3 Degrees (30475) - Mirror/Occulter: 1.5 Ro 1.5 mm overocculting - LYA Slit: 100 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 164600 - OVI MCP Voltage: 200 - OVI mask: msk_000303_OVI in slot 3 Fits Files: 3) Flat Field Count Rate Study Sequence: 06.03.17_UnderOcc.tcl SCI_SPEC: Instrument Diagnostics OBS_PROG: Determine count rate resulting from instrument parameters for a OVI detector flat field of the primary path SCI_OBJ: OBJ: Coronal Hole CMP_NAME: CMP_NUM: Duration: start: 2006.03.17.20:19 end: 2006.03.17.20:40 ONUMs = 22286 (10 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 180 degrees (51551) - Mirror/Occulter: 1.7 Ro 10.29 mm exposed mirror - LYA Slit: 100 um - OVI Slit: 150 um - LYA GRTPOS: 100000 - OVI GRTPOS: 230000 - OVI MCP Voltage: 200 - OVI mask: OVI_MPM_230 in slot 4 Fits Files: q06.03.17.20:19:03.ovi.dat 4) OVI Detector Diagnostic Sequence: 06.01_OVI_164_chk.tcl SCI_SPEC: Instrument Diagnostics OBS_PROG: Spatial Resolution SCI_OBJ: OBJ: Coronal Hole CMP_NAME: CMP_NUM: Duration: start: 2006.03.17.20:41 end: 2006.03.17.21:42 ONUMs = 22287 (12 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 180 degrees (51551) - Mirror/Occulter: 1.75 Ro 1.5 mm overocculting - LYA Slit: 100 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 164600 - OVI MCP Voltage: 200 - OVI mask: OVI_chk_1xfull in slot 6 Fits Files: q06.03.17.20:39:57.ovi.dat 5) Dark Count Study Sequence: 06.03.17_DarkCount.tcl SCI_SPEC: Conduct long duration instrument profile study of the dark count rate. OBS_PROG: Calibration SCI_OBJ: Calibration...Instrument Profile Calibration OBJ: Coronal Hole CMP_NAME: CMP_NUM: Duration: start: 2006.03.17.21:45 end: 2006.03.20.19:40 ONUMs = 22288 (240 exps) 22289 (240 exps) 22290 (240 exps) 22291 (240 exps) 22292 (240 exps) 22293 (240 exps) 22294 (240 exps) 22295 (240 exps) 22296 (110 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 180 degrees (51551) - Mirror/Occulter: 5.0 Ro 0.8 mm exposed mirror - LYA Slit: 100 um - OVI Slit: 150 um - LYA GRTPOS: 100000 - OVI GRTPOS: 230000 - OVI MCP Voltage: 200 - OVI mask: OVI_MPM_230 in slot 4 Fits Files: q06.03.17.21:44:33.ovi.dat q06.03.18.06:00:33.ovi.dat q06.03.18.14:16:33.ovi.dat q06.03.18.22:32:33.ovi.dat q06.03.19.06:48:33.ovi.dat q06.03.19.15:04:33.ovi.dat q06.03.19.23:20:33.ovi.dat q06.03.20.07:36:33.ovi.dat q06.03.20.15:52:33.ovi.dat