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Goddard
Space Flight Center
Hubble Project - Code S
Excerpts from Weekly Report
 Fri
| Apr. 19, 2002
The Advanced Camera for Surveys (ACS) commissioning
activity continued on schedule without any anomalies. Early
Release Observations of astronomical targets taken with the
Advanced Camera for Surveys still set for the first week in
May.
The Near Infrared Camera and Multi-Object Spectrometer (NICMOS)
Cooling System (NCS) achieved the desired operational temperature
and has been stable for several days. The NICMOS instrument
was put into operate mode on April 19 in preparation for the
filter wheel test and the detector bias frame test. These
tests will be completed early next week.
The Power Control Unit (PCU) that was removed from HST during
SM3B, was returned to GSFC for analysis. It was concluded
that a problem with battery load sharing on the removed PCU
was fixed on the PCU that was installed in HST on SM3B.
Goddard
Space Flight Center
Hubble Project - Code S
Excerpts from Weekly Report
Fri
| Apr. 12, 2002
The HST Servicing Mission 3B (SM3B) observatory verification
activities continued to be nominal during the past week. All HST subsystem performance continued to be nominal during
the week.
The Near Infrared Camera/Multi-Object Spectrometer (NICMOS)
Cooling System achieved a temperature of 70 degrees Kelvin
inside the NICMOS cryostat, which has enabled the NCS control
law to take active control and stabilize the cryostat internal
temperature.
The Rigid Array Carrier, Second Axial Carrier, and Flight
Support System were loaded into their shipping containers
at KSC and began the trip back to Goddard on April 10.
The Super Lightweight Interchangeable Carrier (SLIC) Wide-field
Scientific Instrument Protective Enclosure (WSIPE) CDR was
successfully completed April 11.
Early Release Observations of astronomical targets taken with the Advanced Camera for Surveys still set for the first week in May.
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