UVCS MISSION LOG ---------------- Date: 29 November 2005 ----- Last revision: 16 December 2005 (Wu) -------------- File Name: 2005.12.15.a.log ---------- Compiled by: M. Uzzo, R. Wu ------------ UVCS Activity: Recover UVCS from a Modified Hard Safe Configuration -------------- into a Soft Safe Configuration Conduct OVI Stimulus Pulse Test UVCS in Soft Safe Configuration with OVI Detector Powered On and High Voltage Powered Off SOHO Activity: 15 December 2005 SK/MM/Roll TIMELINE -------------- Last Update: 12 December 2005, 17:30 UT Standard Disclaimer: All times are in UT and are estimates. Total Fuel Usage = 0.0723 kg OCD (offpoint flag, SVM times, ESR flags) due on Monday, 12 December SORR on Monday 12 December Limit violation sheets for safing due Wednesday morning 14 December Thursday 15 December 2005 --------------------------- D43 02:15 - 05:45 D46 02:15 - 07:15 D45 05:30 - 07:15 D65/D66 11:50 - 16:20 D24 16:00 - 23:45 D34 00:45 - 03:20 SOC here by 14:00 SWAN safed by FOT, remove SWAN from ESR warning flag list ~14:30 MDI loop opened by FOT with warning ~14:55 Experiment offpoint flag function disabled SK/MM/Roll - SK ~10 minutes, MM ~27 minutes, Roll ~26 minutes Burns should be complete by ~17:30 Experiment offpoint flags enabled for LASCO and MDI MDI loop closed by FOT after asking permission ~21:00 SWAN recovered by FOT, return SWAN to ESR warning flag list - 2 hours after last burn, then do recovery load (SWA051212101.DEL) ~21:00 Per SOC direction run Script U-O5 for UVCS recovery. Friday 16 December 2005 --------------------------- D63/D66 08:30 - 12:25 D24 20:10 - 23:25 D34 23:35 - 06:10 CDS recovery ~20:30 LASCO and CDS added to ESR flag list SVM reserve time ~21:00 UVCS recovery Part 2 (10 mins of dedicated) ~22:00 LASCO recovery at ~22:15 CDS, LASCO, & UVCS load ~22:30 EOF Staff: R. Wu: Lead Scientist ---------- M. Uzzo: Commander, Planner Y.-K. Ko Command file: 05.12.15. .cmd.log Activity: --------- 1) UVCS Recovery from Modified Hard Safe Configuration Sequence: Manual SCI_SPEC: UVCS is recovered from Hard Safe Configuration into a Soft Safe configuration in order to allow UVCS temperatures to return to nominal. OVI Detector powered on. Detector High Voltage remains ramped down and turned off OVI Slitwidth is 100 microns, instrument is rolled to the nominal West (35156 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. SOHO Roll Manuever performed between approximately 18:41 and 19:05 UT. FOT component of UVCS recovery, including enabling of the Experiment Offpoint and ESR Warning Flags, completed at approximately 22:11 UT, TSU Substitution Heater (Circuit #84) turned off at approximately 2212 UT. OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2005.12.15.17:00 end: 2005.12.15.22:25 ONUMs = 49127 Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0, 180 Degrees - Roll: 90, 270 Degrees (35156) - Mirror/Occulter: 1.5 Ro 1.5 mm overocculting - LYA Slit: 100 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 229000 - LYA HIGH VOLTAGE RAMPED DOWN DOWN AND POWERED OFF - OVI HIGH VOLTAGE RAMPED DOWN DOWN AND POWERED OFF - VLD HIGH VOLTAGE RAMPED DOWN DOWN AND POWERED OFF - LYA DETECTOR POWERED OFF - VLD DETECTOR POWERED OFF - OVI mask: OVI_Syn_230 in OVI slot 1 Fits Files: 2) UVCS OVI Stimulus Pulse Test Sequence: Manual SCI_SPEC: OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2005.12.15.22:29 end: 2005.12.15.22:33 ONUMs = 22033 (2 exps) Instrument configuration: - Pointing: Sun Center - Spacecraft Roll: 180 Degrees - Roll: 270 Degrees (35156) - Mirror/Occulter: 1.5 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 229000 - LYA HIGH VOLTAGE RAMPED DOWN DOWN AND POWERED OFF - OVI HIGH VOLTAGE RAMPED DOWN DOWN AND POWERED OFF - VLD HIGH VOLTAGE RAMPED DOWN DOWN AND POWERED OFF - LYA DETECTOR POWERED OFF - VLD DETECTOR POWERED OFF - OVI mask: msk_000303_OVI in OVI slot 3 Fits Files: q05.12.15.22:27:42.ovi.dat 3) 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 East (35156 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. FOT component of UVCS recovery, including enabling of the Experiment Offpoint and ESR Warning Flags, completed at approximately ? UT OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2005.12.15.22:33 end: 2005.12.16.17:00 ONUMs = 22033 Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 270 Degrees (35156) - Mirror/Occulter: 1.5 Ro 1.5 mm overocculting - LYA Slit: 100 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 229000 - LYA HIGH VOLTAGE RAMPED DOWN DOWN AND POWERED OFF - OVI HIGH VOLTAGE RAMPED DOWN DOWN AND POWERED OFF - VLD HIGH VOLTAGE RAMPED DOWN DOWN AND POWERED OFF - LYA DETECTOR POWERED OFF - VLD DETECTOR POWERED OFF - OVI mask: msk_000303_OVI in OVI slot 3 Fits Files: GAP between 12/15/05|23:40:45(14615) and 12/16/05|00:57:03( 5552) GAP between 12/16/05|03:15:50( 2511) and 12/16/05|08:34:27( 346) GAP between 12/16/05|12:20:24( 5679) and 12/16/05|20:13:11( 1942)