UVCS MISSION LOG ---------------- Date: 16 June 2005 ----- Last revision: 21 June 2005 (Wu) -------------- File Name: 2005.06.16.a.log ---------- Compiled by: R. Wu ------------ UVCS Activity: UVCS in Modified Hard Safe configuration for Keyhole -------------- SOHO Activity: Received from SOC via email on Tuesday, -------------- 14 Jun 2005 15:14 UT Last Update: 14 June 2005 15 UT Standard Disclaimer: All times are in UT and are estimates. Total Fuel Usage = 0.03403 kg OCD (offpoint flag, SVM times, ESR flags) due on Monday, 13 June SORR on Tuesday 14 June Limit violation sheets for safing due Thursday morning 16 June Thursday 16 June 2005 --------------------- D43/D46 02:50 - 05:50 D54 13:00 - 14:55 D14/D16 15:05 - 00:20 UVCS already safed SVM Reserve Time D54 LASCO safes at 15:30 SUMER safes at ~15:45 SUMER RPR to be removed from ESR and offpoint flag warning list LASCO removed from ESR flag list CDS safes at 19:00 CDS removed from ESR flag warning list Friday 17 June 2005 ------------------- D43 03:30 - 06:00 D/L only D63/D66 12:30 - 15:00 D24 14:40 - 02:15 SOC here by 12:30 SWAN safed by FOT, remove SWAN from ESR warning flag list MDI loop opened by FOT with warning ~13:35 Experiment offpoint flag function disabled SK/MM/Roll - SK ~5 minutes, MM ~35 minutes, Roll ~26 minutes Burns should be complete by ~15:55 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 (SWA050613102.DEL) EOF Staff: R. Wu: Lead Scientist ---------- 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. OVI Slit is set to 100 microns, instrument is rolled to the nominal East (35156 Engineering Units). Detector High Voltage is ramped down and then turned off, 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 detectors are powered off. FOT use ESR Limit Table, TSU Substitution Heater (Circuit #84) powered on, using duty cycle of 50%. Experiment Offpoint, and ESR Flags disabled for Keyhole. SOHO Spacecraft Roll done during this time. OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2005.06.16.17:00 end: 2005.06.17.16:45 ONUMs = 48237 Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 - 180 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: 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. OVI Slit is set to 100 microns, instrument is rolled to the nominal East (35156 Engineering Units). Detector High Voltage is ramped down and then turned off, 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 detectors are powered off. FOT use ESR Limit Table, TSU Substitution Heater (Circuit #84) powered on, using duty cycle of 50%. Experiment Offpoint, and ESR Flags disabled for Keyhole. OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2005.06.17.16:45 end: 2005.06.17.17:00 ONUMs = 48237 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: