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

	Date:		12 July 2010
	-----

 	Last revision:	5 Apr 2010 (RR)
	--------------

	File Name: 	2010.07.12.a.log
	----------

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

	UVCS Activity:  Ramp down and turn off OVI detector
	--------------	Turn on and ramp up Lya detector
			Conduct LyA Stimulus Pulse Test
			Natural solar eclipse observations coordinated with
			ground-based observation
			
	
	SOHO Activity:	
	--------------

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

	Command file:   10.07.12.15:35:34.cmd.log

	Activity:
	---------

        1) OVI detector ramped down and turned off
   
        Sequence: Manual

        SCI_SPEC: Following completion of the OVI observations on the east limb prior
		  to a solar eclipse, the OVI MCP is ramped down and turned off.


        OBS_PROG: 

        SCI_OBJ:   

        OBJ:

        CMP_NAME: 

        CMP_NUM:  

        Duration: start: 2010.07.12.11:41
                    end: 2010.07.12.11:53

        ONUMs = 

   
        Instrument configuration:

                - Pointing:  Sun center

                - Spacecraft Roll:  180 Degrees

                - Roll:  175 Degrees (3280)
                         

                - Mirror/Occulter:  1.7 Ro
                                    1.5 mm overocculting

                - LYA Slit:    50 um
                - OVI Slit:    75 um 

                - LYA GRTPOS: 67000
                - OVI GRTPOS: 96700

                - LYA DETECTOR POWERED OFF
                - OVI DETECTOR POWERED OFF

                - LYA mask:

        Fits Files:




        2) LyA detector turn on, LyA Stimulus Pulse Test conducted, ramped up HV
   
        Sequence: Manual, TakeLYA_TxN 120 2 

        SCI_SPEC: After switching off OVI detector, the LyA detector is turned on
                  a stimulus pulse test is completed, then HV ramped up


        OBS_PROG:


        SCI_OBJ:



        OBJ:

        CMP_NAME: 

        CMP_NUM:  

        Duration: start: 2010.07.12.11:15
                    end: 2010.07.12.11:19

        ONUMs = 26506 (2 exps)

        Instrument configuration:

                - Pointing:  Sun center

                - Spacecraft Roll:  180 Degrees

                - Roll: 90 Degrees (18762)

                - Mirror/Occulter:  5.0 Ro
                                    0.8 mm exposed mirror


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

                - LYA GRTPOS: 67000
                - OVI GRTPOS: 96700

                - LyA MCP Voltage: 0

                - LyA mask:

        Fits Files:

q10.07.12.15:13:16.lya.dat



        3) LyA Detector Dark Rate Diagnostic
   
        Sequence: LYA_dark_chk 26507 18762

        SCI_SPEC: Determine Dark count rate for LyA 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: 2010.07.12.12:15
                    end: 2010.07.12.13:16

        ONUMs = 26507 (12 exps)

        Instrument configuration:

                - Pointing:  Sun center

                - Spacecraft Roll:  180 Degrees

                - Roll: 90 Degrees (18762)

                - Mirror/Occulter:  5.0 Ro
                                    0.8 mm exposed mirror


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

                - LYA GRTPOS: 67000
                - OVI GRTPOS: 96700

                - LyA Filter Engaged

                - LyA MCP Voltage: 200

                - LyA mask: LYA_chk_1xfull in slot 6

        Fits Files:

q10.07.12.16:15:16.lya.dat




	2) East limb streamer LyA observation at 2.45 Ro
   
	Sequence: 09.07_Silvano 26508 2378 4

	SCI_SPEC: Observe streamer on east limb during prior to solar eclipse in
		  coordination with ground-based observation

	OBS_PROG: Temporal Coverage...Spectral Coverage


	SCI_OBJ:  Primary: Coronal Structure...Large-Scale Structure
                  Sub Obj: Plasma Properties...Density 
                  Sub Obj: Abundances

	OBJ:	Streamer

	CMP_NAME: 

	CMP_NUM:  

	Duration: start: 2010.07.12.13:27
		    end: 2010.07.12.21:01

	ONUMs = 26508 (8 exps)
		26510 (16 exps)


	Instrument configuration:

		- Pointing:  Sun center

		- Spacecraft Roll:  180 Degrees

		- Roll:	175 Degrees (1468)
			180 Degrees (2378)
			185 Degrees (3288)


		- Mirror/Occulter:  1.8 Ro
				    1.5 mm overocculting

				    1.95 Ro
				    1.5 mm overocculting

				    2.20 Ro
				    1.5 mm overocculting

				    2.45 Ro
				    1.5 mm overocculting

				    2.7 Ro
				    1.5 mm overocculting



		- LYA Slit:   50 um
		- OVI Slit:   75 um 

		- LYA GRTPOS: 67000
		- OVI GRTPOS: 96700


		- LYA MCP Voltage: 215

		- LYA mask: LYA_VEX_4x1 in slot 2

	Fits Files:

q10.07.12.17:20:26.lya.dat
q10.07.12.23:05:51.lya.dat