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

	Date:		21 Sep 2010
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 	Last revision:	15 Apr 2011 (RR)
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	File Name: 	2010.09.21.a.log
	----------

	Compiled by:	R. Rosati
	------------

	UVCS Activity:  Raised LYA detector MCP voltage from 200 to 210 after
	--------------	uploading new limit table with modified LYA MCP HV limit.
			Determined performance of LYA detector after raising
			MCP HV.
	
				
	SOHO Activity:	
	--------------

	EOF Staff:	R. Rosati: Lead Scientist
	----------	R. Rosati: Commander
		
			

	Command file:   10.09.21.15:46:33.cmd.log
	-------------


	Activity:
	---------



	1) LYA Detector Performance Comparison between MCP HV setting of 200 and 210
   
	Sequence: TakeLYAexp 1 1 2

	SCI_SPEC: To measure dark background for the LYA detector using original HV
		  as a basis for comparison

	OBS_PROG: Calibration


	SCI_OBJ:  Calibration...Instrument Profile



	OBJ:	Streamer

	CMP_NAME: 

	CMP_NUM:  

	Duration: start: 2010.09.21.15:33
		    end: 2010.09.21.16:34

	ONUMs = 26581 (30 exps)


	Instrument configuration:

		- Pointing:  Sun center

		- Spacecraft Roll:  0 Degrees

		- Roll:	145 Degrees (8744)

		- Mirror/Occulter:  2.7 Ro
				    1.5 mm overocculting


		- LYA Slit:   25 um
		- OVI Slit:   75 um 

		- LYA GRTPOS: 83040
		- OVI GRTPOS: 96700
			      

		- LYA MCP Voltage: 200

		- LYA mask: LYA_wing_100 in slot 5

	Fits Files:

q10.09.21.19:30:10.lya.dat




	2) LYA Detector Performance Comparison between MCP HV setting of 200 and 210
   
	Sequence: TakeLYAexp 1 1 2

	SCI_SPEC: To measure dark background for the LYA detector using increased HV
		  as a basis for comparison

	OBS_PROG: Calibration


	SCI_OBJ:  Calibration...Instrument Profile



	OBJ:	Streamer

	CMP_NAME: 

	CMP_NUM:  

	Duration: start: 2010.09.21.16:48
		    end: 2010.09.21.17:50

	ONUMs = 26582 (30 exps)


	Instrument configuration:

		- Pointing:  Sun center

		- Spacecraft Roll:  0 Degrees

		- Roll:	145 Degrees (8744)

		- Mirror/Occulter:  2.7 Ro
				    1.5 mm overocculting


		- LYA Slit:   25 um
		- OVI Slit:   75 um 

		- LYA GRTPOS: 83040
		- OVI GRTPOS: 96700
			      

		- LYA MCP Voltage: 210

		- LYA mask: LYA_wing_100 in slot 5

	Fits Files:

q10.09.21.20:47:29.lya.dat




	3) LYA Detector Performance Comparison between MCP HV setting of 200 and 210
   
	Sequence: TakeLYAexp 1 1 2

	SCI_SPEC: To measure dark background for the LYA detector using original HV
		  as a basis for comparison

	OBS_PROG: Calibration


	SCI_OBJ:  Calibration...Instrument Profile



	OBJ:	Streamer

	CMP_NAME: 

	CMP_NUM:  

	Duration: start: 2010.09.21.17:59
		    end: 2010.09.21.19:01

	ONUMs = 26583 (30 exps)


	Instrument configuration:

		- Pointing:  Sun center

		- Spacecraft Roll:  0 Degrees

		- Roll:	145 Degrees (8744)

		- Mirror/Occulter:  2.7 Ro
				    1.5 mm overocculting


		- LYA Slit:   25 um
		- OVI Slit:   75 um 

		- LYA GRTPOS: 83040
		- OVI GRTPOS: 96700
			      

		- LYA MCP Voltage: 200

		- LYA mask: LYA_wing_100 in slot 5

	Fits Files:

q10.09.21.21:57:43.lya.dat