UVCS MISSION LOG ---------------- Date: 08 December 2006 ----- Last revision: 18 December 2006 (Wu) -------------- File Name: 2006.12.11.a.log ---------- Compiled by: M. Uzzo, R. Wu ------------ UVCS Activity: Recover UVCS from Modified Hard Safe Configuration -------------- into Soft Safe Configuration Conduct OVI Stimulus Pulse Test Load OVI Detector Mask OVI_FF_RED_4x1 into OVI Slot 2 Thermal Equilibration of UVCS in Soft Safe Configuration Recover UVCS from Soft Safe Configuration Load and Start Theta Ophiuchis Vignetting Study for 11 - 12 December 2006 Ramp Down and Power off OVI Detector Turn on LYA Detector Conduct LYA Stimulus Pulse Test Load LYA Detector Mask LYA_str_4x1 into LYA Slot 2 Ramp Up LYA Detector HV Load Streamer Study LYA Observation for 12 December 2006 SOHO Activity: -------------- EOF Staff: L. Gardner / M. Uzzo: Lead Scientist ---------- M. Uzzo: Commander, Planner R. Wu Command file: 06.12.11.13:55:08.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 instrument is rolled to nominal East (35156 Engineering Units). The Mirror stays at 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 14:50 UT. TSU Substitution Heater (Circuit #84) OFF at 14:53 UT Note: Recovery times (below) are approximate. OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2006.12.11.14:58 end: 2006.12.11.15:13 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: 75 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 - OVI mask: OVI_chk_1xfull in slot 6 Fits Files: 2) OVI Stimulus Pulse Test Sequence: TakeUV_TxN.tcl SCI_SPEC: OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2006.12.11.15:13 end: 2006.12.11.15:17 ONUMs = 22925 (2 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 270 degrees (35156) - Mirror/Occulter: 1.5 Ro 1.5 mm overocculting - LYA Slit: 75 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 210000 - LYA MCP Voltage: 0 - OVI MCP Voltage: 0 - OVI mask: OVI_303_8x2 in slot 3 Fits Files: q06.12.11.15:12:18.ovi.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. Instrument is rolled to the nominal West (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 ? and ? UT, respectively. TSU Substitution Heater (Circuit #84) OFF at ? UT OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2006.12.11.15:17 end: 2006.12.11.21:14 ONUMs = 22925 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 - VLD DETECTOR POWERED OFF - OVI mask: OVI_303_8x2 in slot 3 Fits Files: 4) UVCS Recovery from Soft Safe Configuration Sequence: Manual SCI_SPEC: Completion of recovery of UVCS from modified hard safe configuration. OVI Detector High Voltage is powered on and ramped up at this time. Note: Recovery times (below) are approximate. OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2006.12.11.21:14 end: 2006.12.11.21:20 ONUMs = 22925 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 - OVI MCP Voltage: 200 - OVI mask: OVI_303_8x2 in slot 3 Fits Files: 5) Vignetting with Theta Ophiuchis Sequence: Manual, TakeOVIexp.tcl SCI_SPEC: Instrument Tests. Measure efficiency as a function of aperture width using occulter widths of: mm: 49.05, 4.75, 40.35, 2.37, 10.29, 30.86, 20.57 EU: 28382, 41167, 30905, 41848, 39577, 33651, 36618 Note: 60.12mm (25162) dropped for 2006 OBS_PROG: Calibration SCI_OBJ: Calibration...Vignetting Function OBJ: Theta Oph (star) CMP_NAME: CMP_NUM: Duration: start: 2006.12.11.21:29 end: 2006.12.12.03:26 ONUMs = 22926 (153 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 307 - 311 Degrees (9114 - 9842) - Mirror: 9.73 - 9.10 Ro - Occwidth: 49.05, 4.75, 40.35, 2.37, 10.29, 30.86, 20.57 mm - LYA Slits: 100 um - OVI Slits: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 45000, 237000 - OVI MCP Voltage: 200 - OVI mask: Star_4x2 in slot 1 Fits Files q06.12.11.15:59:06.ovi.dat 6) LYA Stimulus Pulse Test Sequence: TakeUV_TxN.tcl SCI_SPEC: OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2006.12.12.03:37 end: 2006.12.12.03:41 ONUMs = 22930 (2 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 311 Degrees (9842) - Mirror/Occulter: 9.1 Ro 20.57 mm - LYA Slit: 50 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 Fits Files: q06.12.12.03:35:48.lya.dat 7) Streamer Study Sequence: 06.12_StrObsLYA.tcl, sw = 2 SCI_SPEC: A comprehensive study of several streamer properties including the outflow velocities, abundances, electron densities and temperatures. The spatial distribution of these physical properties are analyzed at multiple heights within several streamers examined over the course of the solar cycle. OBS_PROG: Primary: Spectral Resolution Sub Obj: Spatial Resolution SCI_OBJ: Primary: Coronal Dynamics...Outflow Velocities Sub Obj: Abundances OBJ: Streamer CMP_NAME: CMP_NUM: Duration: start: 2006.12.12.04:25 end: 2006.12.12.19:17 ONUMs = 22931 (288 exps) 22932 (144 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 60 Degrees (62474) - Mirror/Occulter: 2.50 Ro 1.5 mm overocculting - LYA Slit: 150 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 210000 - LYA MCP Voltage: 195 - LYA mask: LYA_str_8x1 in slot 1 Fits Files: q06.12.12.04:23:59.lya.dat q06.12.12.14:19:43.lya.dat GAP between 12/12/06|16:17:38( 924) and 12/12/06|16:22:12( 1366) GAP between 12/12/06|20:06:17( 6506) and 12/12/06|20:07:51( 6660)