PROGRESS REPORT
September 24 – October 23, 2000
Accomplishments / Status
Summary: Overall, 38% of the work from the Restart Review to delivery has been completed. The primary focus of this reporting period has been 1) solid modeling design and deflection analysis of the Post-Slit Optical Bench, 2) detailed design and fabrication of the optical benches, 3) design and fabrication of the Slit/Decker mechanisms, 4) detailed design of the Prism, Grating, and Camera Turrets, and 5) 2-D design of the Filter Wheel mechanism.
Next
Milestone:
The next major project milestone is the release of the Post-Slit optical bench
for fabrication on November 20, 2000.
Earned
Value:
BCWS $ 1,951,505
SPI
0.59
BCWP $ 1,145,941
CPI
1.01
ACWP $ 1,138,279
Project
Management:
(38% completed) The project plan be
viewed on the GNIRS web site at: http://www.noao.edu/ets/gnirs/
under Management, Planning. The
scheduled delivery date of the completed GNIRS instrument has not changed.
Systems
Engineering:
(96%) The activity in work included 1) structural analysis, and 2) systems
engineering input to the design process. The
Project Scientist with part time support from a staff support scientist is
assigned to this task.
Structural
Analysis. Earl Pearson has been
working to determine beam position on the detector as a function of bench
deflection for both the OIWFS and Post-Slit benches.
This work is planned to be completed by the November 15th
Quarterly Review.
Mechanical
Design: (31%)
Activities included optical bench detailing, slit/decker mechanism design, focus
mechanism design, grating turret design, prism turret design, and filter wheel
detail design.
The
Slit/Decker mechanism assembly draft is 100% complete.
The
focus mechanism 3-D design is 85% complete.
Filter
Wheel Assembly mechanism 2-D drafting is 78% complete and only checking remains
before release to fabrication.
The
Acquisition Mirror mechanism 2-D drafting is 35% complete.
This assembly is on hold.
The
Pre-Slit and Post-Slit bench assemblies are in 2-D detailing as needed for
fabrication.
Mechanical
Fabrication:
The
camera drive spindle hub fabrication is 45% complete.
OIWFS
Bench, Pre-Slit bench. The OIWFS
bench is in fabrication in the NOAO Instrument Shop.
The Pre-slit bench is in fabrication at a selected vendor.
The
Motor Drive Assembly assembly/test is 9% complete.
Electronics
Design:
(31%) Activities in this work package include 1) dewar and mechanism wiring
design definition, 2) array interface wiring definition, 3) cold stationing
definition, 4) thermal enclosure wiring definition, and 5) OIWFS electronics
wiring and packaging definition.
Work
on defining dewar wiring, ALADDIN array interfacing details, and detailed
mechanism wiring is in process.
Software
Development:
(24%) The Components Controller Software is 42% complete, Lab support software
is 6% complete, and the high level EPICS software is 1% complete.
Procurement:
(44%) Major activities in this Work Package include optics work at RMI, and
monitoring vendor fabrication.
Problems / Solutions
The OIWFS opto-mechanical and electrical components have not been received as scheduled/promised by the IfA. A cost and schedule impact Change Order has been submitted to Gemini.
Key Personnel
Ron
George has joined the GNIRS project as an Electronics Technician, and reports to
Jerry Penegor, the project EE.
A Drafting Technician will be joining the GNIRS team on October 30th.
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