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

	Date:		16 February 2005
	-----

 	Last revision:	17 February 2005 (MU)
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	File Name: 	2005.02.16.a.log
	-----------

	Compiled by:	M. Uzzo
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	UVCS Activity:  Load and Start Star Calibration using 38 Aquarius for 
	--------------		16 - 17 February 2005
			Load and Start Vignetting Function Measurement for 
				17 February 2005
	
	SOHO Activity:  
	--------------  

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

	Command file:	05.02.16.14:26:05.cmd.log

	Activity:
	--------

	1) Star Calibration of 38 AQR

	Sequence: Manual and TakeOVIexps.tcl

	SCI_SPEC: Star Observations to determine mirror degradation through 
		  comparison of stellar intensity at various occulter settings
		  from this study and a similar study of the same star in 1996.

	OBS_PROG: Calibration

	SCI_OBJ:  Calibration

	OBJ:      Star...38 Aqr

	CMP_NAME:

	CMP_NUM:

	Duration: start: 2005.02.16.17:47
		    end: 2005.02.17.03:46

	ONUMs = 22122 (48 exps)
		22123 (142 exps)
		22124 (58 exps)

	Instrument configuration:

		- Pointing:  Sun center

                - Roll: 94.6, 95.2, 95.8 degrees (3215, 3325, 3434)
 
                - Mirror/Occulter: From 9.9 to 8.0 Ro
				   Occulter @ 11mm, 21mm & 49mm
 
                - LYA Slits:   50 um
                - OVI Slits:  150 um
 
                - LYA GRTPOS: 128000
                - OVI GRTPOS: 210000, 180000, 110000

		- OVI MCP Voltage: 200 
 
                - OVI mask:   Star_5x2 in slot 2
 
	Fits Files:

q05.02.16.17:03:50.ovi.dat
q05.02.16.20:07:21.ovi.dat
q05.02.17.01:38:21.ovi.dat

	2) Detector Characterization: Vignetting Function Measurement : Part 1

	Sequence: 05.02_cal_occ.tcl  r=4

	SCI_SPEC: Vignetting function tests.  Observe signal in OVI channel 
		  as a function of occulter position for several fixed mirror 
		  positions:

		    mirror 2.5 Ro  scan occulter 1.3 - 2.3 Ro (0.8-8.7 mm)
		    mirror 3.5 Ro    "      "    2.1 - 3.3 Ro (7.12-16.62mm)
		    mirror 4.5 Ro    "      "    3.0 - 4.3 Ro (14.24-24.53mm)

		  This test is to determine the change of mirror efficiency 
		  with time. 

	OBS_PROG: Calibration

	SCI_OBJ:  Calibration...Vignetting 
		  
	OBJ:      Streamer

	CMP_NAME: 

	CMP_NUM:  

	Duration: start: 2005.02.17.03:51
                    end: 2005.02.17.12:18

	ONUMs =	22125 (99 exps)

	Instrument configuration:

		- Pointing:  Sun center

		- Spacecraft Roll:  180 Degrees

		- Roll: 140 Degrees (11480)

                - Mirror/Occulter:  4.5 Ro:
				    24.53, 14.24, 16.62, 18.99, 20.57, 24.53,
				    14.24, 16.62, 18.99, 20.57, 24.53mm

                - LYA Slit:    50 um
                - OVI Slit:   150 um

                - LYA GRTPOS: 128000
                - OVI GRTPOS: 188100

		- OVI MCP Voltage: 200 

                - OVI mask:   msk_000303_OVI in slot 3

	Fits Files:

q05.02.17.03:50:40.ovi.dat