UVCS MISSION LOG ---------------- Date: 05 September 2004 ----- Last revision: 21 October 2004 (Wu) -------------- File Name: 2004.09.05.a.log ---------- Compiled by: Y.-K. Ko ------------ UVCS Activity: Load and Start Streamer Study for 05 September 2004 -------------- Load Streamer Study for 05 - 06 September 2004 Load Streamer Study for 06 September 2004 Load Streamer Study for 06 September 2004 Load Mini-Synoptic for 06 - 07 September 2004 Load OVI Synoptic for 07 September 2004 SOHO Activity: Received in email from SOC, Sunday, -------------- 5 September 2004 10:52:50 UT: At 06:34 UT on Sunday 5 September 2004, SOHO went into CRP mode due to an Attitude Control Unit (ACU) anomaly. The cause is yet to be determined. The star tracker had reset itself, but it checked out fine during recovery. Only minimal pointing excursions (about the same magnitude as normal daily variations due to thermal causes) were experienced in X and Y. The roll excursion was about 0.05 degrees. SOHO was back in Normal Mode at 09:45 UT. During the recovery, OBT was routinely distributed to MDI, UVCS, SWAN, CEPAC, CELIAS and GOLF. There should be no impact to instruments other than this. Received in email from SOC, Sunday, 5 September 2004 12:38:49 UT: ACU anomaly did not trigger an offpoint flag. EOF Staff: M. Uzzo: Lead Scientist, Planner ---------- Y.-K. Ko: Commander R. Wu Command file: 04.09.05.16:44:02.cmd.log Activity: --------- 1) Streamer Properties Over the Solar Cycle Sequence: 04.09_StrObs.tcl, sw = 17 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: 2004.09.05.18:56 end: 2004.09.05.20:36 ONUMs = 21585 (8 exps) 21586 (40 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 60 Degrees (62474) - Mirror/Occulter: 1.75 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 50 um - LYA GRTPOS: 128000 - OVI GRTPOS: 187680, 223500 - OVI MCP Voltage: 200 - OVI mask: msk_000303_OVI in slot 3 OVI_str_188_225 in slot 5 Fits Files: q04.09.05.18:54:29.ovi.dat q04.09.05.19:12:05.ovi.dat 2) Streamer Properties Over the Solar Cycle Sequence: 04.09_StrObs.tcl, sw = 5 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: 2004.09.05.20:38 end: 2004.09.06.07:07 ONUMs = 21587 (32 exps) 21588 (272 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 60 Degrees (62474) - Mirror/Occulter: 5.0 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 100 um - LYA GRTPOS: 128000 - OVI GRTPOS: 187680, 223500 - OVI MCP Voltage: 200 - OVI mask: msk_000303_OVI in slot 3 OVI_str_188_225 in slot 5 Fits Files: q04.09.05.20:36:30.ovi.dat GAP between 09/06/04|01:31:13(13862) and 09/06/04|01:32:17(13967) q04.09.05.21:43:40.ovi.dat 3) Streamer Properties Over the Solar Cycle Sequence: 04.09_StrObs.tcl, sw = 5 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: 2004.09.06.07:08 end: 2004.09.06.17:38 ONUMs = 21587 (32 exps) ; same obsnum as in item 2)! 21588 (272 exps) ; same obsnum as in item 2)! Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 60 Degrees (62474) - Mirror/Occulter: 5.0 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 100 um - LYA GRTPOS: 128000 - OVI GRTPOS: 187680, 223500 - OVI MCP Voltage: 200 - OVI mask: msk_000303_OVI in slot 3 OVI_str_188_225 in slot 5 Fits Files: q04.09.06.07:07:22.ovi.dat q04.09.06.08:14:32.ovi.dat 4) Streamer Properties Over the Solar Cycle Sequence: 04.09_StrObs.tcl, sw = 17 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: 2004.09.06.17:39 end: 2004.09.06.19:20 ONUMs = 21591 (8 exps) 21592 (40 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 60 Degrees (62474) - Mirror/Occulter: 1.75 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 50 um - LYA GRTPOS: 128000 - OVI GRTPOS: 187680, 223500 - OVI MCP Voltage: 200 - OVI mask: msk_000303_OVI in slot 3 OVI_str_188_225 in slot 5 Fits Files: q04.09.06.17:38:25.ovi.dat q04.09.06.17:55:59.ovi.dat