UVCS MISSION LOG ---------------- Date: 15 September 2004 ----- Last revision: 21 October 2004 (Wu) -------------- File Name: 2004.09.20.a.log ---------- Compiled by: M. Uzzo, R. Wu ------------ UVCS Activity: UVCS in Modified Hard Safe configuration for Keyhole -------------- SOHO Activity: Received in email from SOC Friday, 17 September 2004 -------------- 19:43 UT: 21 SEPTEMBER 2004 SK/MM/Roll TIMELINE Last Update: 17 September 2004 18 UT Standard Disclaimer: All times are in UT and are estimates. Total Fuel Usage = 25.5g (0.025kg) OCD (offpoint flag, SVM times, ESR flags) due Wednesday 15 September SORR on Friday 17 September Limit violation sheets for safing due by Monday morning 20 September MONDAY -- 20 September 2004 --------------------------- D65/D66 0730-1615 D15/D27 2045-0035 UVCS already safed SVM Reserve Time at ~13 UT LASCO safes at ~14 UT CDS safes at ~15 UT ESR flag disabled for CDS and LASCO TUESDAY -- 21 September 2004 ---------------------------- D54 0725-0945 D24 1450-0015 CELIAS STOF safed by FOT, TBC SWAN safed by FOT, remove SWAN from ESR warning flag list, TBC MDI loop opened by FOT with warning (~15:30 UT) Experiment offpoint flag function disabled Roll/SK/MM - 26 minute roll (~16 UT), ~3 minutes SK, ~46 minutes MM Burns should be complete by ~18 UT Experiment offpoint flags enabled for LASCO and MDI MDI loop closed by FOT after asking permission SWAN recovered by FOT, return SWAN to ESR warning flag list - 2 hours after last burn, then do recovery load, TBC Uplink Patch CELIAS STOF recovered by FOT - 6 hours after last burn, TBC WEDNESDAY -- 22 September 2004 ------------------------------ D63/D66 1230-1650 D15/D27 2035-0025 Possible patch test on D63/D66, TBC CDS recovery at ~21 UT ESR flag enabled for CDS and LASCO CDS load LASCO recovery at ~22:30 UT LASCO load THURSDAY -- 23 September 2004 ----------------------------- D54 0720-0945 D54 1315-1645 D24 2130-0015 EOF Staff: R. Wu: Lead Scientist ---------- M. Uzzo: Commander, Planner Y.-K. Ko Command file: No Commanding Activity: --------- 1) UVCS in Modified Hard Safe Configuration Sequence: SCI_SPEC: Following completion of Science Observations, UVCS is placed into a modified Hard Safe configuration in preparation for the SOHO Keyhole Period. Detector High Voltage is ramped down and then turned off, OVI Slit is set to 100 microns, instrument is rolled to the nominal East (35156 Engineering Units), and Mirror is moved to 1.5 Solar Radii with 1.5 mm overocculting. UVCS Aperture Door is also closed 708 steps, Internal Mirror / Occulter Heater set to 100% duty cycle. Internal Spectrometer Heater is not turned on. In addition to "traditional" Hard Safe configuration, all UVCS Detector Power are turned off. FOT use ESR Limit Table, and turn on TSU Substitution Heater (Circuit #84) and set duty cycle to default 60%. Experiment Offpoint, and ESR Flags disabled for Keyhole. Roll profile from 15:35 to 16:02 UT, 21 September 2004 OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2004.09.20.17:00 end: 2004.09.21.15:54 ONUMs = 46277 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: 128000 - 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 - OVI DETECTOR POWERED OFF - VLD DETECTOR POWERED OFF - OVI mask: OVI_Syn_230 in slot 1 Fits Files: 2) UVCS in Modified Hard Safe Configuration Sequence: SCI_SPEC: Following completion of Science Observations, UVCS is placed into a modified Hard Safe configuration in preparation for the SOHO Keyhole Period. Detector High Voltage is ramped down and then turned off, OVI Slit is set to 100 microns, instrument is rolled to the nominal East (35156 Engineering Units), and Mirror is moved to 1.5 Solar Radii with 1.5 mm overocculting. UVCS Aperture Door is also closed 708 steps, Internal Mirror / Occulter Heater set to 100% duty cycle. Internal Spectrometer Heater is not turned on. In addition to "traditional" Hard Safe configuration, all UVCS Detector Power are turned off. FOT use ESR Limit Table, and turn on TSU Substitution Heater (Circuit #84) and set duty cycle to default 60%. Experiment Offpoint, and ESR Flags disabled for Keyhole. Roll profile from 15:35 to 16:02 UT, 21 September 2004 OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2004.09.21.15:54 end: 2004.09.21.17:00 ONUMs = 46277 Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 90 Degrees (35156) - Mirror/Occulter: 1.5 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 100 um - LYA GRTPOS: 128000 - 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 - OVI DETECTOR POWERED OFF - VLD DETECTOR POWERED OFF - OVI mask: OVI_Syn_230 in slot 1 Fits Files: