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

	Date:		23 June 2009
	-----

 	Last revision:	15 July 2009 (Wu)
	--------------

	File Name: 	2009.06.23.a.log
	----------

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

	UVCS Activity:	Recover UVCS from Modified Hard Safe Configuration 
	--------------	Conduct OVI Stimulus Pulse Test
			Load and Test PATROL Sequence and Function 
			Thermal Equilibration of UVCS in Soft Safe 
			Configuration
			
	SOHO Activity:	
        --------------  

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

	Command file:	09.06.23.14:47:42.cmd.log

	Activity:
	---------

	1) Recover UVCS from Modified Hard Safe Configuration

	Sequence: Manual

	SCI_SPEC: UVCS is recovered from Hard Safe Configuration into a Soft 
		  Safe configuration in order to allow UVCS temperatures to 
		  return to nominal.  
		  
		  Detector High Voltage remains ramped down and turned off
		  instrument is rolled to nominal East (35156 Engineering 
		  Units).  The Mirror stays at 1.5 Solar Radii with 1.5 mm 
		  overocculting.  UVCS Aperture Door is opened at this time, 
		  Internal Mirror / Occulter Heater set to 0% duty cycle 
		  (255).  OVI Detecor Timing and Charge Thresholds set.
 
		  FOT told to continue to use UVCS ESR Limit Set.

		  FOT component of UVCS recovery, including enabling of the 
		  ESR Warning at 16:45 UT and Experiment Offpoint Flags at, 
		  16:48 UT, and the TSU Substitution Heater (Circuit #84) OFF  
		  completed at approximately 16:51 UT

		  UVCS NRT portion of recovery begins at approximately 
		  17:00 UT.  Long pause in NRT due to "emergency" NASCOM
		  router maintenance touted to have "no impact" on ops.

		  Note: Recovery times (below) are approximate.

	OBS_PROG: 

	SCI_OBJ:  

	OBJ:      

	CMP_NAME: 

	CMP_NUM:  


	Duration: start: 2009.06.23.16:58
		    end: 2009.06.23.18:51

	ONUMs =	25566

	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 ON
		- VLD DETECTOR POWERED OFF

		- LYA mask:   Star_4x2_LYA in slot 4
		- OVI mask:   OVI_Hole_237 in slot 2

	Fits Files:


	2) OVI Stimulus Pulse Test

	Sequence: TakeUV_TxN.tcl

	SCI_SPEC: 

	OBS_PROG: 

	SCI_OBJ:  

	OBJ:

	CMP_NAME:

	CMP_NUM:

	Duration: start: 2009.06.23.18:51
		    end: 2009.06.23.18:55

	ONUMs = 25570 (2 exps)

	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 MCP Voltage: 0 
		- OVI MCP Voltage: 0 

		- OVI mask:   OVI_303_8x2 in slot 3

	Fits Files:

q09.06.23.18:49:48.ovi.dat

	3) PATROL Function Test

	Sequence: Manual

	SCI_SPEC: Load test exposures in PStart and have the FOT send the 
		  PATROL start command. Purpose is to detemine if this 
		  function could be used to SAFE UVCS by SOHO in response 
		  to ESR.

		  First test involves sending UCMDPAN (nominal PATROL
		  command) while UVCS is in PREOPS mode.

		  Second test involves sending UCMDPAN (nominal PATROL
		  command) and UCMDPAR (redundant PATROL command) while 
		  UVCS is in STBY mode.

		  Third test involves sending UCMDPAN (nominal PATROL
		  command) and UCMDPAR (redundant PATROL command) while 
		  UVCS is in OPS mode.

	OBS_PROG: 

	SCI_OBJ:  

	OBJ:

	CMP_NAME:

	CMP_NUM:

	Duration: start: 2009.06.23.19:20
		    end: 2009.06.23.19:50

	ONUMs = 25571 (6 exps)

	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 MCP Voltage: 0 
		- OVI MCP Voltage: 0 

		- OVI mask:   OVI_303_8x2 in slot 3

	Fits Files:

q09.06.23.19:11:44.ovi.dat

	4) Thermal Equilibration of UVCS in Soft Safe Configuration

	Sequence: none

	SCI_SPEC: UVCS is recovered from Hard Safe Configuration into a Soft 
		  Safe configuration in order to allow UVCS temperatures to 
		  return to nominal.  
		  
		  Detector High Voltage remains ramped down and turned off.
		  Instrument is rolled to the nominal East (35156 Engineering
	          Units), and Mirror / Occulter is set at 1.5 Solar Radii 
                  with 1.5 mm overocculting. UVCS Aperture Door is open. 
		  Internal Mirror / Occulter Heater set to 0% duty cycle. 

		  FOT told to continue to use UVCS ESR Limit Table.

		  Expected Limit Violation sheets submitted to FOT via SOC
		  for any expected limit violations during this time.  

	OBS_PROG: 

	SCI_OBJ:  

	OBJ:      

	CMP_NAME: 

	CMP_NUM:  

	Duration: start: 2009.06.23.19:50
		    end: 2009.06.24.18:42

	ONUMs = 25571

	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 ON
		- VLD DETECTOR POWERED OFF

		- OVI mask:   OVI_303_8x2 in slot 3

	Fits Files: