UVCS MISSION LOG ---------------- Date: 24 October 2008 ----- Last revision: 29 October 2008 (Wu) -------------- File Name: 2008.10.24.a.log ---------- Compiled by: R. Wu ------------ UVCS Activity: Ramp Down and Power off OVI Detector -------------- Turn on LYA Detector Conduct LYA Stimulus Pulse Test Ramp Up LYA Detector HV Load and Start LYA Detector Dark Rate Diagnostic for 24 October 2008 Load LYA Detector Dark Rate Characterization for 24 - 25 October 2008 Load Suprathermal Seed Particle Observations for 25 - 26 October 2008 Load Suprathermal Seed Particle Observations for 26 - 27 October 2008 Load LYA Detector Dark Rate Diagnostic for 27 October 2008 Load LYA Detector HV Calibration for 27 - 28 October 2008 UVCS in SAFE Mode with LyA Filter Engaged Following LyA Detector Current Excursion Beyond UVCS Onboard Safety Table Setpoint UVCS Commanded to Soft Safe Configuration UVCS in Soft Safe Configuration SOHO Activity: -------------- EOF Staff: L. Gardner: Lead Scientist ---------- M. Uzzo: Commander, Planner R. Wu: Commander Command file: 08.10.24.11:53:12.cmd.log Activity: --------- 1) LYA Stimulus Pulse Test Sequence: TakeUV_TxN.tcl SCI_SPEC: Calibration OBS_PROG: Calibration SCI_OBJ: Calibration OBJ: CMP_NAME: CMP_NUM: Duration: start: 2008.10.24.14:48 end: 2008.10.24.14:52 ONUMs = 24878 (2 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 0 Degrees (18762) - Mirror/Occulter: 5.0 Ro 1.5 mm overocculting - LYA Slit: 100 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 210000 - LYA MCP Voltage: 0 - OVI MCP Voltage: 0 - LYA mask: LYA_303_8x2 in slot 3 Fits Files: q08.10.24.14:45:51.lya.dat 2) LYA Detector Dark Rate Diagnostic Sequence: LYA_dark_chk.tcl SCI_SPEC: Determine Dark count rate for LYA detector. Instrument rolled to coronal hole, 5.0 Ro with 0.8 mm exposed mirror. Script engages LyA filter and then disengages it at end. OBS_PROG: Calibration SCI_OBJ: Calibration OBJ: Coronal Hole CMP_NAME: CMP_NUM: Duration: start: 2008.10.24.15:24 end: 2008.10.24.15:54 ONUMs = 24879 (6 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 0 Degrees (18762) - Mirror/Occulter: 5.0 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 210000 - LYA Filter Engaged - LYA MCP Voltage: 200 (Nominal + 5) - LYA mask: LYA_chk_1xfull in slot 6 Fits Files: q08.10.24.15:14:28.lya.dat 3) Proton Velocity Distribution Measurements Dark Count Observation Sequence: 08.02_LYA_DarkCount.tcl, n45min = 32, n15min = 0 SCI_SPEC: OBS_PROG: Primary: Spectral Resolution Sub_Obj: Sensitivity SCI_OBJ: Primary: Plasma Properties...Density Sub_Obj: Plasma Properties...Proton Temperature OBJ: Coronal Hole CMP_NAME: CMP_NUM: Duration: start: 2008.10.24.15:56 end: 2008.10.24.19:34 ONUMs = 24880 (43 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 0 Degrees (18762) - Mirror/Occulter: 5.0 Ro 0.8 mm exposed mirror - LYA Slit: 50 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 210000 - LYA Filter Engaged - LYA MCP Voltage: 200 (Nominal + 5) - LYA mask: LYA_wing_100 in slot 5 Fits Files: q08.10.24.15:55:45.lya.dat 4) UVCS in SAFE Mode Sequence: SCI_SPEC: OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2008.10.24.19:34 end: 2008.10.24.20:39 ONUMs = 24880 Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 0 Degrees (18762) - Mirror/Occulter: 5.0 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 210000 - LYA Filter Engaged - LYA MCP Voltage: 0 - OVI MCP Voltage: 0 - OVI mask: OVI_HV_8x2 in slot 4 - LYA mask: LYA_wing_100 in slot 5 Fits Files: 5) UVCS Commanded to Soft Safe Configuration Sequence: Manual SCI_SPEC: Instrument put into OPS mode, exposure left in buffer transmitted, and LyA Filter disengaged. OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2008.10.24.20:39 end: 2008.10.24.22:01 ONUMs = 24880 Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 0 Degrees (18762) - Mirror/Occulter: 5.0 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 210000 - LYA MCP Voltage: 0 - OVI MCP Voltage: 0 - OVI mask: OVI_HV_8x2 in slot 4 - LYA mask: LYA_wing_100 in slot 5 Fits Files: 6) UVCS in Soft Safe Configuration Sequence: SCI_SPEC: OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2008.10.24.22:01 end: 2008.10.25.16:00 ONUMs = 24880 Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: 0 Degrees (18762) - Mirror/Occulter: 5.0 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 100 um - LYA GRTPOS: 100000 - OVI GRTPOS: 210000 - LYA MCP Voltage: 0 - OVI MCP Voltage: 0 - OVI mask: OVI_HV_8x2 in slot 4 - LYA mask: LYA_wing_100 in slot 5 Fits Files: