UVCS MISSION LOG ---------------- Date: 28 July 2009 ----- Last revision: 24 August 2009 (Wu) -------------- File Name: 2009.08.12.a.log ---------- Compiled by: M. Uzzo, R. Wu ------------ UVCS Activity: UVCS in Modified Hard Safe Configuration -------------- SOHO Activity: MANEUVER TIMELINE FOR 11 AUGUST 2009 SK/MM/Roll -------------- Standard Disclaimer: All times are in UT and are estimates. Total Fuel Usage: .0060kg OCD (offpoint flag, SVM times, ESR flags) not needed SORR on Friday 7 August 2009 Limit violation sheets for safing due Monday 10 August TUESDAY 11 AUGUST 2009 ---------------------- D43/D45 01:00 - 04:05 D24 13:55 - 21:30 SOCs here at 13:00 LASCO safes (~30 minutes) at ~14:30 LASCO will perform closed door calibrations today from 17-22 CDS safes (use TSTOL c_fl_submode_prep, c_fl_shutdoors from Maneuver Prep Script) at 15:00 SWAN safed by FOT: run n_fl_llockin, go to ESR limit set MDI loop opened by FOT with warning ~14:45 Experiment offpoint flag function disabled SK/MM: SK (30 seconds), MM (35 minutes) Burns should be complete by ~16:05 Experiment offpoint flags enabled for LASCO and MDI MDI loop closed by FOT after asking permission from MDI SWAN recovered by FOT (2 hours after last burn): go to nominal limit set, run n_fl_llockout, send n_fl_manrec WEDNESDAY 12 AUGUST 2009 ------------------------ D34 01:45 - 05:15 D15/D27 13:50 - 16:50 SOCs here at 13:00 EIT post bakeout calibrations at ~14:00 EIT resumes observations at ~16:00 EIT load for the roll LASCO and CDS will recover after the roll on Thursday, along with UVCS THURSDAY 13 AUGUST 2009 ----------------------- D43/D34 01:15 - 04:15 (D34 ends at 03:45) D65 10:00 - 13:15 D24 13:50 - 21:30 LASCO already safed for roll MDI loop opened by FOT with warning ~14:20 Experiment offpoint flag disabled SWAN cross-calibration for roll - send n_fl_roll no later than 6 minutes before roll (done in Profile in CRP Script) Roll (~26 minutes) Experiment offpoint flag enabled for MDI and LASCO MDI loop closed by FOT after asking permission ~17:00 Start SWAN observations by sending n_fl_manrec CDS recovery (use TSTOL c_fl_opendoors from Maneuver End Script) UVCS recovery - 30 minutes NRT first to open door then FOT do their part LASCO recovery (~30 minutes) - wait until 1 hour after CDS and UVCS doors open CDS & LASCO load UVCS will do their final recovery and resume observations on Friday morning EOF Staff: R. Wu: Lead Scientist ---------- M. Uzzo: Commander, Planner Command file: No Commanding Activity: --------- 1) UVCS in Modified Hard Safe Configuration Sequence: None SCI_SPEC: Following completion of Science Observations, UVCS is placed into a modified Hard Safe configuration in preparation for the SOHO High Gain Antenna Keyhole Period of July/August 2009. OVI and LyA Slits are set to 100 microns, instrument is rolled to nominal East (35156 Engineering Units). Detector High Voltage is ramped down and then turned off. The 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 (64). FOT using ESR Limit Set, TSU Substitution Heater (Circuit #84) powered on and set to 50% duty cycle. UVCS removed from Experiment Offpoint and ESR warning lists for Keyhole. OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2009.08.12.16:00 end: 2009.08.13.14:44 ONUMs = 25673 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_VEX_4x1 in slot 2 - OVI mask: OVI_chk_1xfull in slot 6 Fits Files: GAP between 08/12/09|16:45:38( 3759) and 08/13/09|01:29:05( 4891) GAP between 08/13/09|04:10:51( 4055) and 08/13/09|10:02:49( 5102) GAP between 08/13/09|13:10:40( 6767) and 08/13/09|13:52:49(10812)