UVCS MISSION LOG 
				----------------

	Date:	        20 May 2004
	-----

 	Last revision:	06 Julyy 2004 (Wu)
	--------------

	File Name: 	2004.05.20.a.log
	----------

	Compiled by:	Y.-K. Ko
	------------

	UVCS Activity: 	Load masks OVI_spc303_2x6 in Slot 3
	--------------	           Star_5x2 in Slot 4
                        Load and Start Coronal Hole/Streamer Boundary 
                        Observations for 20 - 21 May 2004
                        Load OVI Synoptic for 21 May 2004

	SOHO Activity:	
        --------------  

	EOF Staff:	D. Spadaro: Lead Scientist
	---------- 	Y.-K. Ko: Commander, Planner 
			M. Uzzo
                        R. Wu

	Command file:	04.05.20.19:57:14.cmd.log

	Activity:
	---------

	1) Observations of a Coronal Hole/Streamer Boundary

	Sequence: 04.05_DS22.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

	CMP_NUM:  7050

	Duration: start: 2004.05.20.20:22
                    end: 2004.05.21.04:52

	ONUMs =	21217 (150 exps) 

	Instrument configuration:

		- Pointing:  Sun Center

		- Spacecraft Roll:  0 Degrees

		- Roll: 235 degrees (61563)
 
		- Mirror/Occulter:  4.0, 4.5 Ro
                                    2.0 mm overocculting

		- LYA Slit:    50 um
		- OVI Slit:   200 um 

		- LYA GRTPOS: 128000
		- OVI GRTPOS: 228700

		- OVI MCP Voltage: 200 

		- VLD DETECTOR POWERED OFF

		- OVI mask:   OVI_DS1_229 in slot 5

	Fits Files:

q04.05.20.20:20:30.ovi.dat

	2) OVI 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: 2004.05.21.05:25
		    end: 2004.05.21.19:39

	ONUMs = 45190 (49 exps)
		45191 (49 exps) 
		45192 (47 exps)
		45193 (48 exps)
		45194 (49 exps)
		45195 (49 exps)
		45196 (47 exps)
		45197 (49 exps)

	Instrument configuration:

		- Pointing:  Sun center

                - Spacecraft Roll:  0 Degrees

		- Roll:	W: os, NW: os, N: oc, NE: os, 
			E: os, SE: os, S: oc, SW: os

		- 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:

z04.05.21.05:24:32.ovi.dat
z04.05.21.07:13:12.ovi.dat
z04.05.21.09:01:52.ovi.dat
z04.05.21.10:45:20.ovi.dat
z04.05.21.12:34:00.ovi.dat
z04.05.21.14:22:40.ovi.dat
z04.05.21.16:11:20.ovi.dat
z04.05.21.17:54:47.ovi.dat