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

	Date:		26 June 2008
	-----

 	Last revision:	21 August 2008 (Wu)
	--------------

	File Name: 	2008.08.20.a.log
 	----------

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

	UVCS Activity:	UVCS in Modified Hard Safe Configuration 
	--------------	

	SOHO Activity:	21 Aug 2008 SK/MM/Roll TIMELINE
	--------------	Last Update: 18 Aug 2008 at 17:05 by TS

		Standard Disclaimer:  All times are in UT and are estimates.
		Total Fuel Usage: 0.059 kg TS 15 Aug
		OCD (offpoint flag, SVM times, ESR flags) due: 18 Aug 2008 (TBC)
		SORR on: 20 Aug 2008 13:00 UT
		Limit violation sheets for safing due: 19 Aug 2008 at 16:00 UT

		WEDNESDAY -- 20 AUG 2008
		------------------------
		D65     06:35 - 10:25
		D43/D46 21:10 - 01:10
		SOCs here at 12 UT
		SUMER already safed
		UVCS already safed as of 5 Aug 2008
		LASCO safes, EIT does post-bakeout calibrations & loads for 
		roll (~30 min) at: ~21:20 UT
		CDS safes using TSTOLs c_fl_submode_prep and c_fl_shutdoors 
		at: ~21:50 UT
		CDS removed from ESR flag warning list (Maneuver Prep Script)
		SVM Reserve Time: ~22:00 UT

		THURSDAY -- 21 AUG 2008
		---------------------------
		D65    06:30 - 10:45
		D24    14:00 - 22:00
		D43/46 21:50 - 01:00
		SOCs here at 13 UT
		SWAN safed by FOT: run n_fl_llockin, go to ESR limit set
		MDI loop opened by FOT with warning: ~14:45 UT
		Experiment offpoint flag function disabled
		EIT will observe the roll
		Manoeuvre order and duration: SK, MM, 26 minute roll
		Burns should be complete by: ~16:05 UT
		Experiment offpoint flags enabled for LASCO and MDI
		MDI loop closed by FOT after asking permission: ~18:45 UT
		SWAN recovered by FOT (2 hours after last burn): go to nominal
		limit set, run n_fl_llockout, send n_fl_manrec

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

	Command file:	No Commanding

	Activity:
	---------

	1) UVCS in Modified Hard Safe Configuration

	Sequence: None

	SCI_SPEC: Following completion of Science Observations, UVCS 
		  is placed into a modified Hard Safe configuration in 
		  preparation for the SOHO High Gain Antenna Keyhole 
		  Period of May 2008.

		  OVI and LyA Slits are set to 100 microns, instrument 
		  is rolled to nominal East (35156 Engineering Units).  
		  Detector High Voltage is ramped down and then turned off.  
		  The Mirror is moved to 1.5 Solar Radii with 1.5 mm 
		  overocculting.  UVCS Aperture Door is also closed 708 steps, 
		  Internal Mirror / Occulter Heater set to 100% duty cycle 
		  (64).  
		  		  
		  FOT using ESR Limit Set, TSU Substitution Heater (Circuit 
		  #84) powered on and set to 50% duty cycle.  UVCS removed 
		  from Experiment Offpoint and ESR warning lists for Keyhole.

	OBS_PROG: 

	SCI_OBJ:  

	OBJ:      

	CMP_NAME: 

	CMP_NUM:  

	Duration: start: 2008.08.20.16:00
		    end: 2008.08.21.16:00

	ONUMs =	24653

	Instrument configuration:

		- Pointing:  Sun center

		- Spacecraft Roll: 180 Degrees

		- Roll: 270 Degrees (35156)

		- Mirror/Occulter:  1.5 Ro
                                    1.5 mm overocculting

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

                - LYA GRTPOS: 100000
		- OVI GRTPOS: 210000

		- LYA HIGH VOLTAGE RAMPED DOWN AND POWERED OFF
		- OVI HIGH VOLTAGE RAMPED DOWN AND POWERED OFF
		- VLD HIGH VOLTAGE RAMPED DOWN AND POWERED OFF

		- LYA DETECTOR POWERED OFF
		- OVI DETECTOR POWERED OFF
		- VLD DETECTOR POWERED OFF

		- LYA mask:   LYA_wing_100   in slot 5
		- OVI mask:   OVI_chk_1xfull in slot 6

	Fits Files:

GAP between 08/20/08|10:24:48(16306) and 08/20/08|21:17:29(13474)
GAP between 08/21/08|01:05:41( 2639) and 08/21/08|06:32:37( 1276)
GAP between 08/21/08|10:44:44( 9119) and 08/21/08|14:02:45(11756)