SMOV Status & Planning Meeting Notes
9/03/09
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Summary – Data analysis of WFC3, COS, and STIS SMOV calibrations continue, with
no major problems. COS science is planned to be enabled starting in SMS257 (Sep. 14),
while COS SMOV calibrations continue through most of Sep. The NICMOS Cooling System
(NCS) control set point has been raised in order to achieve thermal control stability and
NICMOS SMOV is due to begin also in SMS 257. It will extend into November. ERO
observations are complete and data processing is underway for a Sep. 9 public release.
o Details below and in the referenced attachments
o This meeting also included an ACS analysis update.
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Observatory Status
o
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All subsystems are nominal
SI Status
o
WFC3
 Science (SDeustua)
 Data analyses are ongoing
o 11552 Characterization of IR Grisms
o 11549 UVIS/IR Pointing Stability
o Other features
 For details, see the attached WFC3_SMOV_report_09_03.ppt
 WFC3 SMOV visits are 99% complete
o Four visits of 11432 UVIS Flats remain
 Scheduled to complete on Sep. 11
o
COS

o
Science (TKeyes)
 Recent Results and Ongoing Analyses
o 11489 FUV Spectroscopic Resolution and Focus Verification
 Visit 2A failed to a single guidestar
 No Take-data-flag during target acq routing
 May need to repeat the visit
o FUV Internal Flat Field Exposures
 “Divot” and “clod” no longer appear, after recent
high-voltage adjustment
o NUV Structural / Thermal Stability Verification
o Target Acquisition Parameter Updates
 COS SMOV program
o 85% of the visits are complete
o Remaining activities to schedule in SMS257 and 264
o Plan to enable GO/GTO science in SMS257
 New CALCOS and reference files to be delivered by
then
FGS/OTA (ABradley)
 Nominal
o
o
o
ACS


STIS

Science (DLennon)
 Finalizing the CCD time-dependent sensitivity reference files
 Continuing to work on the equivalent MAMA reference files
o As discussed in previous SMOV meetings these are rather
close to the old extrapolated values.
NICMOS/NCS
 Engineering (Scott Swain Flash Report of 9/02/09, 11:29 am)
 NCS PID Control Setpoint Adjustment (S. Swain, 09/02/09, 11:29am)
o OR 18695-0 to adjust the NCS PID control setpoint
temperature was successfully completed at 145/15:00:21
UTC.
 The Prime (inactive – dewar) setpoint was changed
from 77.19 K to 79.8 K
 Alternate (active – weighted-average neon) setpoint
was changed from 72.39 K to 75.0 K.
o The Compressor speed was seen to ramp back immediately
to accommodate the requested increase in temperature.
o The control point temperature is in the process of settling
into its new commanded setpoint.
o SI and TCS will be continuing to monitor as the system
approaches stability.
o Many thanks to all involved in the successful completion of
this activity.

o
ACS SMOV is complete.
David Golimowski provided a detailed summary of ACS SMOV events and
analyses results
 See the attached ACSSMOV_summary.ppt
o 11515 ACS light leak test detected an unexpected streak
(See 8/21/09 meeting notes)
 Determined to be caused by scattering from CCD
surface and reflection from window and beveled
edges of camera housing (not light from another SI)
 Recognized as the same problem seen by
WFC3 in thermal vac testing
o WFC3 was corrected on the ground
ERO


Science (TWiklind)
 NICMOS SMOV to commence in SMS 257 on Sep. 15
o DC Tranfer Test
o Dark Monitoring
o Filter Wheel Test
 For more details, see the attached
NICMOS_SMOV_Report_20090903.ppt
All ERO visits are complete.
Data processing is underway for a Sep. 9 public release.
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P&S Status
o
o
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Calendar/SMS builds
 250 – to be delivered today
 257 – building process has started
Replans
 None
Operations
o
FOT

Nominal
o
PACOR
 Nominal
o
OPUS (TEllis)
 We had another Q/S split COS dataset (laay01ko) over the weekend
 which held up the association of which it and 4 other exposures were
members.
 These exposures were from proposal 11480 and weren't being fasttracked
 but the available files were manually FTPed to avoid further delay.
 Monday morning the Q/S split exposure was processed successfully
using the new MRGCOS process that became available with the
installation of the 2009.2k quick-fix.
 On Monday a new WFC3 flat field reference file delivery with CCDAMP=ANY
 allowed us to process 3 WFC3 associations (ibbq01010, 020, and
030)
o for proposal 11934 which previously errored in calibration
 due to no flat field reference files being available for
the amplifiers that were used.
 No fast-tracking for the remainder of this week.
o
Archive
 Nominal