UVCS MISSION LOG ---------------- Date: 17 May 2004 ----- Last revision: 06 July 2004 (Wu) -------------- File Name: 2004.05.17.a.log ---------- Compiled by: Y.-K. Ko ------------ UVCS Activity: Load and Start Coronal Hole/Streamer Boundary -------------- Observations for 17 - 18 May 2004 Load Mini-Synoptic for 18 May 2004 SOHO Activity: -------------- EOF Staff: D. Spadaro: Lead Scientist ---------- Y.-K. Ko: Commander, Planner D. H. Phillips M. Uzzo Command file: 04.05.17.17:38:58.cmd.log Activity: --------- 1) Observations of a Coronal Hole/Streamer Boundary Sequence: 04.05_DS11.tcl SCI_SPEC: The purpose of this investigation is to detect the behaviour of some parameters (line intensity, line width, line ratio) across the streamer edges, in order to study in more detail the critical regions where the magnetic field lines change from a closed to open configuration. This will be done on a range of heliocentric distance spanning from 1.6 to 5 Rsun, in order to cover also the very important streamer cusp area. It should be possible to build up maps of the streamer boundaries according to the values measured for the above parameters, in order to provide new data for theoretical models of streamers and of slow solar wind acceleration. OBS_PROG: Primary: Spatial Coverage Sub Obj: Spatial Resolution SCI_OBJ: Coronal Structure...Fine Structure Coronal Dynamics...Outflow Velocities OBJ: Streamer Boundary CMP_NAME: Coronal Hole/Streamer Boundary Canpaign UVCS/CDS/LASCO/SUMER(TBC) CMP_NUM: 7050 Duration: start: 2004.05.17.17:44 end: 2004.05.18.12:32 ONUMs = 21209 (92 exps) 21210 (71 exps) 21211 (72 exps) 21212 (92 exps) Instrument configuration: - Pointing: Sun Center - Spacecraft Roll: 0 Degrees - Roll: 215, 225, 240, 235 degrees (57923, 59743, 62473, 61563) - Mirror/Occulter: 1.6, 1.75, 1.9, 2,1, 2,3, 2,6 Ro 1.5 mm overocculting - LYA Slit: 50 um - OVI Slit: 50 um (1.6 - 1.9 Ro), 75 um (2.1 Ro), 100 um (2.3, 2.6 Ro) - LYA GRTPOS: 128000 - OVI GRTPOS: 228700 - OVI MCP Voltage: 200 - VLD DETECTOR POWERED OFF - OVI mask: OVI_DS1_229 in slot 5 Fits Files: q04.05.17.17:42:23.ovi.dat q04.05.17.23:01:10.ovi.dat q04.05.18.03:07:21.ovi.dat q04.05.18.07:16:17.ovi.dat 2) Mini-Synoptic Sequence Load and Start Sequence: SynopticD:Start SCI_SPEC: Synoptic studies. VLD & LYA HV & Power off / OVI voltage at 200, LYA grating position now at 128000 "permanently". OBS_PROG: Synoptic SCI_OBJ: Synoptic OBJ: Entire Corona CMP_NAME: CMP_NUM: Duration: start: 2004.05.18.13:04 end: 2004.05.18.18:06 ONUMs = 45160 (9 exps) 45161 (9 exps) 45162 (35 exps) 45163 (9 exps) 45164 (9 exps) 45165 (9 exps) 45166 (35 exps) 45167 (9 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 0 Degrees - Roll: W: ms, NW: ms, N: mc, NE: ms, E: ms, SE: ms, S: mc, SW: ms - Mirror/Occulter: ls: 3.00, 2.50, 2.10, 1.90, 1.75, 1.60 Ro lc: 2.10, 1.90, 1.75, 1.60 Ro os: 3.00, 2.10, 1.90, 1.75, 1.60 Ro oc: 1.90, 1.75, 1.60 Ro ms: 2.10, 1.75, 1.60 Ro mc: 1.90, 1.75, 1.60 Ro 1.5 mm overocculting (1.60 Ro) 2.0 mm overocculting (1.75, 1.90, 2.10, 2.50, 3.00 Ro) - LYA Slits: 50 um - OVI Slits: 150 um (LyA Synoptic) 200 um (OVI, and Mini Synoptic) - LYA GRTPOS: 128000 - OVI GRTPOS: 177596 (LyA Synoptic) 229000 (OVI, and Mini Synoptic) - OVI MCP Voltage: 200 - VLD DETECTOR POWERED OFF - OVI mask: OVI_Syn_178 in slot 2 (LyA Synoptic) OVI_Syn_230 in slot 1 (OVI, and Mini Synoptic) Fits Files: z04.05.18.13:03:50.ovi.dat z04.05.18.13:28:46.ovi.dat z04.05.18.13:53:42.ovi.dat z04.05.18.15:12:22.ovi.dat z04.05.18.15:37:18.ovi.dat z04.05.18.16:02:14.ovi.dat z04.05.18.16:27:11.ovi.dat z04.05.18.17:45:51.ovi.dat