SMOV STATUS & PLANNING MEETING -  2 MAY 97
			http://www.stsci.edu/smov/

NOTE:  The next meeting is May 5, 8:30 AM. 


STATUS REPORTS

1.  Observatory Status - All systems nominal.


2.  WFPC2 Status - Proceeding nominally with Cycle 6 science and
	remaining SMOV monitors.  
 

3.  NICMOS Status

	- Engineering Status

	  Today's temps:

	  	Detector 1 Mounting Cup temperature is stable at 61.14 degK.
	  	VCS temperature is 98.5 degK and has recendtly been 
			showing an increase in temperature of about 0.2
			 degK/day.

		A very small temperature increase was displayed by a 
		cold well monitor at the aft end of the inner tank.
		This change is not understood, since this area should be
		the most thermally stable.  
 
  	- Science Status

	The latest C3 focus monitoring results show a return towards the 
	nominal position at a rate similar the report prior to the last
	one, which had indicated a slowing down.  (The last report however
	suffered from large uncertainties due to breathing/occultation
	effects.)  The motion back towards nominal continues at a rate of
	approximately 0.1 mm/day (PAM space).  The current focus in PAM space 
	is 15.1mm.  (The latest focus monitoring report from Chris Burrows
	is attached.)


4.  STIS Status

	- Engineering Status  

		The MAMA high-voltage testing (7105) continued nominally
		yesterday.  The FUV MAMA was ramped to full voltage and
		everything looked good.  Valid event ration was nominal.
		Data suggest the lamp+optics+detector combination shows
		little deviation from last August's ground testing.  The next
		step is Sunday with a partial ramp-up of the NUV MAMA.

		The CCB experinced another CEB partial reset early on day
		118 (April 28).   Although the CCD was in Operate Mode when
		it occurred, the partial reset had the same signature as the
		previous one with the detector in Standby (Protect) Mode.  A
		change in the set of appropriate monitors has been
		discussed in order assure earlier operational detection of
		any future reset.
	
 	- Science Status

		The CCD peak-up test 7071 and the aperture location test
		7051 were lost to the reset.  Another visit of 7071, using
		a smaller slit, occurs next week and, if successful,
		will obviate the need to repeat the lost visit.  7051 will
		be repeated in an upcoming SMS.


5.  FGS status

	    -  FRR for FGS-1r commissioning occurred on Thursday, 1 May,
		@GSFC and confirmed the plans to proceed with using
		FGS-1R as a third guider starting in SMS139.  Alignment
		matrices for FGS-1R only will be implemented at this time.


6.  FOC/COSTAR status- The FOC SMOV program is complete.  The SMOV TTRB has
	enabled the resumption of FOC science. 


PLANNING REPORTS

1.  Status of Upcoming SMSs

	- SMS118 - Currently executing.

	- SMS125 - 
		 - Final Mode products have been reviewed and signed off.

	- SMS132 - Final Mode products will be available for review 
		   next week.

	- SMS139 - Calendar building complete.  Will contain
		   regular MAMA operations and the first use of FGS-1R
		   as a guider.  The MAMA rules for SAA avoidance are
		   in place.  Awaiting cmd instructions for MAMA LVPS/HVPS
		   management.  The MAMA operations in this SMS are
		   being scheduled in the SAA-free orbits, while the CCD and
		   NICMOS activities are being fit into the SAA-impacted
		   orbits.

	- SMS146 - Calendar building to start on Monday.


2.  Replans

	STIS

	- No significant replans at this time.

	NICMOS

	- No significant replans have yet been identified.


OPERATIONS STATUS

1.  OPUS - No new problems to report.
 
2.  Archive -  No new problems to report.


OTHER

	Chris Blades relayed the Project's exhortation to continued ERO 	scheduling on a high-priority basis.

==============================================================
Attached:  Latest focus monitoring results from Chris Burrows.


Return-path: 
Date: Thu, 01 May 1997 04:49:28 -0500 (EST)
From: CHRIS X4913 RM 323 
Subject: Latest nicmos focus data
To: biagetti@stsci.edu, axon@stsci.edu, bergeron@stsci.edu,
 eric.mentzell@gsfc.nasa.gov, burrows@stsci.edu, krist@stsci.edu,
 sparks@stsci.edu, blades@stsci.edu, gerald_repass@gsfc.nasa.gov,
 grepass@hst.nasa.gov, rthompson@as.arizona.edu,
 John.H.Campbell.1@gsfc.nasa.gov, gmorrow@hst.nasa.gov,
 David.S.Leckrone.1@gsfc.nasa.gov, Preston.M.Burch.1@gsfc.nasa.gov,
 J.Keith.Kalinowski.1@gsfc.nasa.gov, David.A.Ratzow.1@gsfc.nasa.gov,
 ed.weiler@hq.nasa.gov, ochs_bill@mnb2.fss-moses.lockheed.com,
 Paul.H.Geithner.1@gsfc.nasa.gov, Gerald.D.Repass.1@gsfc.nasa.gov,
 hrsleckrone@hrs.gsfc.nasa.gov, blades@poppc.stsci.edu, long@stsci.edu,
 lallo@stsci.edu, CBiagetti@worldnet.att.net, gschneid@as.arizona.edu
X-VMS-To: @SYS$LOGIN:NICMOS.DIS
X-VMS-Cc: BURROWS

NICMOS Focus results        
--------------------

Chris Burrows 						 1 May 1997

The latest NICMOS focus run was on 29th April. There was a complete sweep in 
all three cameras.  This dataset is consistent with small internal errors, and 
shows that the camera focus continues to improve. Breathing corrections are not 
yet available, but an estimated breathing correction based on the breathing in 
similar orbits has been applied, and improves the consistency of the results.
 
The new datapoint implies that the 26 April dataset (which was inconsistent) is 
probably best interpreted by using the focus values obtained after the target 
occultation, and disregarding the values from the first orbit.

Detector space motions.
-----------------------
Date		Camera 1	Camera 2	Camera 3
4-Mar-97	4.68(2.06)	4.73(0.90)	6.36(0.11)
11-Mar-97	8.58(1.89)	8.49(0.69)	8.81(0.03)
19-Mar-97	7.27(1.86)	8.19(0.91)	9.84(0.04)
28-Mar-97	11.44(2.79)	10.23(1.16)	10.05(0.10)
4-Apr-97	10.51(1.88)	9.90(0.62)	10.04(0.03)
15-Apr-97	13.91(1.36)	10.04(0.34)	9.67(0.03)
18-Apr-97					9.39(0.02)
23-Apr-97	10.29(2.35)	8.46(0.68)	9.11(0.04)
26-Apr-97                                       9.08(0.10)
29-Apr-97	10.74(2.05)	8.70(0.63)	8.84(0.03)<--- New numbers	


The corresponding best focus positions in PAM space.  
						
4-Mar-97	3.29(0.22)	2.15(0.31)	-9.63(0.22)
11-Mar-97	2.88(0.20)	0.84(0.24)	-14.79(0.05)
19-Mar-97	2.71(0.20)	0.62(0.31)	-17.25(0.08)
28-Mar-97	2.27(0.29)	-0.08(0.40)	-17.69(0.21)
4-Apr-97	2.37(0.20)	0.03(0.22)	-17.67(0.07)  
15-Apr-97	2.01(0.14)	-0.02(0.12)	-16.89(0.07)
18-Apr-97					-16.30(0.05)
23-Apr-97	2.39(0.25)	0.53(0.23)	-15.70(0.08)
26-Apr-97					-15.65(0.21)
29-Apr-97	2.34(0.22)	0.45(0.22)	-15.14(0.07)<-- New data

Almost all of the data since 4 April (5 out of the 6 datasets) is consistent with an 
improvement at a rate of about 0.1mm per day in PAM space focus for camera 3. 

More precisely, a least squares fit is 

Focus=-17.77+0.103(days since 4th April)  

The only anomaly is that this formula predicts 16.63 on the 15th April, which is 
somewhat inconsistent with the measurement then.


Thanks to : 

Eddie Bergeron for helping us get and read calibrated data quickly
John Krist who did all the phase retrieval runs (a huge effort)
Matt Lallo for breathing data.
Al Holm for HST sun and target rise data
Eric Mentzell for help with the PAM positions

biagetti@stsci.edu

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