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

	Date:		02 September 2009
	-----

 	Last revision:	09 September 2009 (Wu)
	--------------

	File Name: 	2009.09.04.a.log
	----------

	Compiled by:	M. Uzzo, R. Wu
	------------

	UVCS Activity:  OVI Detector Dark Rate Diagnostic for 04 September 2009 
	--------------	Coronal Hole Detector Background Study for 
		 	04 - 06 September 2009

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

	EOF Staff:	J. Kohl: Lead Scientist
	----------	M. Uzzo: Commander, Planner
			R. Wu

	Command file:   09.08.31.13:07:54.cmd.log
			09.09.03.12:31:28.cmd.log

	Activity:
	---------

	1) OVI Detector Dark Rate Diagnostic

	Sequence: OVI_dark_chk.tcl

	SCI_SPEC: Determine Dark count rate for OVI detector. Instrument 
		  rolled to coronal hole, 5.0 Ro with 0.8 mm exposed mirror. 
		  Script engages OVI filter and then disengages it at end.

	OBS_PROG: Calibration

	SCI_OBJ:  Calibration

	OBJ:      Coronal Hole

	CMP_NAME: 

	CMP_NUM:  

	Duration: start: 2009.09.04.18:02
                    end: 2009.09.04.19:03

       	ONUMs =	25774 (12 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:    50 um 

		- LYA GRTPOS: 100000
		- OVI GRTPOS: 210000

		- OVI Filter Engaged

		- OVI MCP Voltage: 205 

		- OVI mask:   OVI_chk_1xfull in slot 6

	Fits Files:

q09.09.04.18:01:48.ovi.dat

	2) Coronal Hole Detector Background Study
   
	Sequence: 09.08_hole_BG.tcl, n = 17, m = 0, r = 0, e = 0 

	SCI_SPEC: Determine the dark background of the OVI detector
		  to provide correction for the coronal hole study. 

	OBS_PROG: Primary: Spectral Resolution
		  Sub_Obj: Calibration

	SCI_OBJ:  Calibration...Instrument Profile

	OBJ:      Coronal Hole

	CMP_NAME: 

	CMP_NUM:  

	Duration: start: 2009.09.04.19:05
		    end: 2009.09.06.17:55

	ONUMs =	25775 (320 exps)
		25776 (320 exps)
		25777 (320 exps)
		25778 (320 exps)
		25779 (80 exps)

	Instrument configuration:

		- Pointing:  Sun center

		- Spacecraft Roll:  0 Degrees

		- Roll:	0 Degrees (18762)

		- Mirror/Occulter:  5.0 Ro
				    2.37 mm exposed mirror

		- LYA Slit:   100 um
		- OVI Slit:    50 um 

		- LYA GRTPOS: 100000
		- OVI GRTPOS: 232100
		
		- OVI Filter Engaged

		- OVI MCP Voltage: 205

		- OVI mask:   OVI_Hole_BG in slot 1

	Fits Files:

q09.09.04.19:04:31.ovi.dat
q09.09.05.06:05:51.ovi.dat
q09.09.05.17:07:11.ovi.dat
q09.09.06.04:08:31.ovi.dat
q09.09.06.15:09:51.ovi.dat