UVCS MISSION LOG ---------------- Date: 27 November 2006 ----- Last revision: 07 December 2006 (Wu) -------------- File Name: 2006.12.06.a.log ---------- Compiled by: M. Uzzo, R. Wu ------------ UVCS Activity: UVCS in Modified Hard Safe Configuration ------------- SOHO Activity: Received via email from SOC, Thursday, 30 November 2006: -------------- Last Update: 30 November 2006 15 UT EBZ Standard Disclaimer: All times are in UT and are estimates. Total Fuel Usage = 101.1 grams (FDF estimate) OCD (offpoint flag, SVM times, ESR flags) due Thursday 30 November SORR on Dec 01 at 11 am Limit violation sheets for safing due on Monday 04 December Wednesday 06 Dec 2006 --------------------- D34 05:20-07:20 D27/D14 17:45-20:15 SVM Reserve time on D34 CDS recovery ~17:45 CDS and LASCO returned to the ESR flag warning list CDS load ~18:00 LASCO recovery ~19:00 (1 hour after CDS doors open) LASCO load and CDS loading continues if needed EOF Staff: R. Wu: Lead Scientist ---------- R. Wu: Commander Y.-K. Ko M. Uzzo 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 December 2006. 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: 2006.12.06.17:00 end: 2006.12.07.17:00 ONUMs = 22924 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_303_8x2 in slot 3 Fits Files: GAP between 12/06/06|07:19:42( 3895) and 12/06/06|17:49:19(15226) GAP between 12/06/06|20:17:03(13043) and 12/07/06|08:24:42( 1028) GAP between 12/07/06|10:19:41(12079) and 12/07/06|20:23:50( 4578)