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

	Date:		23 April 2007
	-----

 	Last revision:	27 April 2007 (Wu)
	--------------

	File Name: 	2007.04.23.a.log
	----------

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

	UVCS Activity:	Flush and Abort IQ
	--------------	Transmit OVI Exposure
                        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 Diagnostic for 
			23 April 2007
			Load Streamer Study LyA Observations 
                        for 23 - 24 April 2007
			Load Streamer Study LyA Observations 
                        for 24 April 2007

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

	EOF Staff:	L. Strachan: Lead Scientist
	----------	Y.-K. Ko: Commander
			M. Uzzo: Planner
			R. Wu

	Command file:	07.04.23.13:43:19.cmd.log
			07.04.24.11:48:00.cmd.log

	Activity:
	---------

	1) LYA Stimulus Pulse Test

	Sequence: TakeUV_TxN.tcl

	SCI_SPEC: Calibration

	OBS_PROG: Calibration

	SCI_OBJ:  Calibration

	OBJ:      Coronal Hole

	CMP_NAME:

	CMP_NUM:

	Duration: start: 2007.04.23.17:25
		    end: 2007.04.23.17:29

	ONUMs = 23290 (2 exps)

	Instrument configuration:

		- Pointing:  Sun center

                - Spacecraft Roll:  0 Degrees

		- Roll: 198.1 Degrees (54846)

		- Mirror/Occulter:  1.8 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:   msk_000303 in slot 3

	Fits Files:

q07.04.23.17:22:31.lya.dat

	2) LYA Detector Diagnostic

	Sequence: LYA_100_chk.tcl

	SCI_SPEC: Calibration

	OBS_PROG: Spatial Resolution

	SCI_OBJ:  Calibration

	OBJ:      Coronal Hole

	CMP_NAME: 

	CMP_NUM:  

	Duration: start: 2007.04.23.17:42
                    end: 2007.04.23.18:12

	ONUMs =	23291 (6 exps) 

	Instrument configuration:

		- Pointing:  Sun center

		- Spacecraft Roll:  0 Degrees

		- Roll: 180 Degrees (51551)

		- Mirror/Occulter:  1.75 Ro
				    1.5 mm overocculting

		- LYA Slit:   100 um
		- OVI Slit:   100 um 

		- LYA GRTPOS: 100000
		- OVI GRTPOS: 210000

		- LYA MCP Voltage: 195 

		- LYA mask:   LYA_chk_1xfull in slot 6

	Fits Files:

q07.04.23.17:39:01.lya.dat

	3) Streamer Study LyA Observations

	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: 2007.04.23.18:22
		    end: 2007.04.24.09:14

	ONUMs = 23292 (287 exps)   
		23293 (144 exps)   

	Instrument configuration:

		- Pointing:  Sun center

                - Spacecraft Roll:  0 Degrees

		- Roll:	90 Degrees (35156)

		- Mirror/Occulter:  2.5 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:

q07.04.23.18:21:06.lya.dat
q07.04.24.04:16:51.lya.dat

	4) Streamer Study LyA Observations

	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: 2007.04.24.09:16
		    end: 2007.04.24.11:50

	ONUMs = 23294 (75 exps) ; aborted 
		23295 (144 exps) ; not run

	Instrument configuration:

		- Pointing:  Sun center

                - Spacecraft Roll:  0 Degrees

		- Roll:	90 Degrees (35156)

		- Mirror/Occulter:  2.5 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:

q07.04.24.09:14:59.lya.dat