UVCS MISSION LOG ---------------- Date: 07 June 2006 ----- Last revision: 08 June 2006 (Wu) -------------- File Name: 2006.06.07.a.log ---------- Compiled by: R. Wu, M. Uzzo ------------ UVCS Activity: Recover UVCS from Modified Hard Safe Configuration -------------- into Soft Safe Configuration Conduct LyA Stimulus Pulse Test Thermal Equilibration of UVCS in Soft Safe Configuration SOHO Activity: Received via email from SOC Monday, 05 June 2006 -------------- 14:23:34 UT: SK/MM/Roll FINAL TIMELINE Last Update: 2 Jun 2006 1440 UT by T. Siili Standard Disclaimer: All times are in UT and are estimates. Total Fuel Usage = 0.096179 kg (FDF estimate) CELIAS has been e-mailed on 31 Jun 2006 by TS. CELIAS does not safe. OCD (offpoint flag, SVM times, ESR flags) due 1 Jun 2006 SORR on 2 Jun 2006 1300 UT Limit violation sheets for safing due 5 Jun 2006 Wed 7 Jun 2006 --------------------------- D54 0545 1145 D27 1330 1730 D14 1330 1730 D43 2310 0325 D46 2310 0325 SVM Reserve time ~1115 UVCS recovery part 1 at ~1400 CDS recovery at ~1500 CDS and LASCO returned to the ESR flag warning list CDS load ~1515 LASCO recovery at ~1615 LASCO load Thu 8 Jun 2006 --------------------------- D65 0550 0750 D66 0550 0750 D27 1315 1900 D14 1315 1900 UVCS recovery part 2 on D27&D14 pass as early as possible, FOT activities (SVM) permitting EOF Staff: M. Uzzo: Lead Scientist --------- M. Uzzo: Commander, Planner Y.-K. Ko R. Wu Command file: 06.05.31.13:05:57.cmd.log Activity: --------- 1) Recover UVCS 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. Detector High Voltage remains ramped down and turned off OVI and LyA Slitwidth is 100 microns, instrument is rolled to nominal East (35156 Engineering Units) to protect detector electronics. The Mirror is moved to 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 (255). OVI Detecor Timing and Charge Thresholds set. FOT told to continue to use UVCS ESR Limit Set. FOT component of UVCS recovery, including enabling of the ESR Warning Flags and Experiment Offpoint, completed at approximately 14:02 and 14:07, respectively UT. TSU Substitution Heater (Circuit #84) OFF at 14:10 UT OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2006.06.07.14:02 end: 2006.06.07.14:31 ONUMs = 22499 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: 210000 - 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 - OVI DETECTOR POWERED OFF - VLD DETECTOR POWERED OFF - LYA mask: LYA_chk_1xfull in slot 6 - OVI mask: OVI_str_4x4 in slot 5 Fits Files: 2) LYA Stimulus Pulse Test Sequence: TakeUV_TxN.tcl SCI_SPEC: OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2006.06.07.14:31 end: 2006.06.07.14:35 ONUMs = 22500 (2 exp) 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: 210000 - LYA MCP Voltage: 0 - OVI MCP Voltage: 0 - LYA mask: msk_000303 in slot 3 - OVI mask: OVI_Eclipse06_215 in slot 6 Fits Files: q06.06.07.14:29:42.lya.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 and LyA 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 open. 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 ESR Warning Flags and Experiment Offpoint, completed at approximately 14:02 and 14:07, respectively UT. TSU Substitution Heater (Circuit #84) OFF at 14:10 UT OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2006.06.07.14:35 end: 2006.06.08.14:18 ONUMs = 22500 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: 210000 - LYA HIGH VOLTAGE RAMPED DOWN AND POWERED OFF - OVI HIGH VOLTAGE RAMPED DOWN AND POWERED OFF - VLD HIGH VOLTAGE RAMPED DOWN AND POWERED OFF - OVI DETECTOR POWERED OFF - VLD DETECTOR POWERED OFF - LYA mask: LYA_chk_1xfull in slot 6 - OVI mask: OVI_str_4x4 in slot 5 Fits Files: GAP between 06/07/06|17:29:52(16223) and 06/07/06|23:15:43( 290) GAP between 06/08/06|00:33:58( 7814) and 06/08/06|00:39:54( 8377) GAP between 06/08/06|03:24:39( 7831) and 06/08/06|05:55:17( 5918) GAP between 06/08/06|07:49:42( 527) and 06/08/06|13:18:48(15754)