GNIRS
PROGRESS REPORT
June
21– July 25, 2002
Accomplishments
/ Status
Summary:
94% of the work from the Restart Review to delivery has been completed.
Progress was made on radiation shield assembly rework, bench assembly,
fit checks and wiring, and slit mechanism cold testing.
The
post-slit bench has been successfully fit checked into the bulkhead assembly.
The dewar mount truss has been fit checked to the ISS on the Flexure Rig in
our new facility. The last SR camera lens has been accepted and integrated
into the camera. Flexure testing has set for late August following completion
of instrument assembly and initial testing. The slit mechanism cold test is
nearly complete. Following successful completion of this test, the relevant
bearings in the other cold mechanisms will be replaced and those mechanisms
functionally warm tested before installation back into the post-slit bench.
All
testing is scheduled to complete and the instrument ship to Chile in the first
quarter of 2003. All planned schedule contingency has been used.
Next
Milestone: The next major
project milestones are:
- Slit mechanism cold testing completion
- July
- Top assembly integration completion - August
- Flexure testing - late August
Earned Value:
|
|
October
|
November
|
December
|
January
|
February
|
March
|
April
|
May
|
June
|
July
|
|
BCWS |
$3,145,000 |
$3,192,781 |
$3,236,748 |
$3,304,286 |
$3,344,496 |
$3,413,125 |
$3,462,160 |
$3,504,878 |
$3,546,177 |
$3,567,153 |
|
BCWP |
$2,573,084 |
$2,617,408 |
$2,884,471 |
$2,911,411 |
$2,930,888 |
$2,970,031 |
$3,035,216 |
$3,156,912 |
$3,173,288 |
$3,202,553 |
|
ACWP |
$2,938,004 |
$3,122,731 |
$3,313,415 |
$3,383,383 |
$3,453,168 |
$3,537,018 |
$3,756,257 |
$3,858,289 |
$3,956,665 |
$4,068,240 |
|
SPI |
0.82 |
0.82 |
0.89 |
0.88 |
0.88 |
0.87 |
0.88 |
0.90 |
.89 |
.90 |
|
CPI |
0.88 |
0.84 |
0.87 |
0.85 |
0.85 |
0.84 |
0.81 |
0.82 |
.80 |
.79 |
This table reflects planned and actual charges to the project as of July 25, 2002. We have spent $1,528,693 in capital to date.
Project Management: (95% complete)
The project plan may be viewed on the GNIRS web site at: http://www.noao.edu/ets/gnirs/ under Management, Planning. The current estimated delivery of the GNIRS instrument is November 29, 2002.
Systems Engineering: (100% of planned work)
Mechanical Design, Fabrication, Assembly and Test: (96%
overall) The major activity in this work package has been mechanism testing
and rework.
Mechanisms:
(96% complete overall).
|
|
March |
April |
May
|
June
|
July
|
Status
|
|
Slit |
99% |
99% |
99% |
90% |
98% |
Rework
and Cold test |
Benches: (100% complete overall). Benches are complete. Bench wiring is in process, but is considered an integration activity.
Fixed Assemblies: (90% complete overall). Only the Thermal Distribution Assembly is left, which will be closed out when it is sized and installed into the dewar.
|
|
March
|
April |
May
|
June
|
July
|
Status
|
|
Thermal
Distribution Assembly |
75% |
75% |
75% |
90% |
90% |
Fit
check |
Electronics:
(89% complete overall). Basic work
is complete.
|
|
March |
April |
May
|
June
|
July
|
Status
|
|
External
Cabling |
36% |
36% |
36% |
- |
99% |
Used
in mechanism test; need only termination at one end |
|
Bulkhead
Internal Cabling |
58% |
58% |
69% |
- |
99% |
Assembly |
|
Documentation
|
95% |
95% |
95% |
95% |
95% |
|
Software Development: (100% complete overall). The work includes adjustments to the software during testing
|
|
May
|
June
|
July
|
|
Array
and Instrument Controller checkout |
88% |
90% |
100% |
Alignment and Integration: (46% complete overall)
|
|
March
|
April
|
May
|
June
|
July
|
|
Telescope
Simulator |
69% |
88% |
93% |
99% |
99% |
|
I.
Dewar and Structure |
- |
- |
- |
- |
- |
|
II.
Mechanical Integration |
- |
43% |
43% |
43% |
80% |
|
III.
Warm Tests |
- |
- |
- |
9% |
- |
|
IV.
Cold Tests |
- |
- |
- |
- |
- |
Deliverables: (54% complete overall)
Work
in this area has focused on the outlines for the Hardware and Software
Maintenance manuals.
|
|
March
|
April
|
May
|
June
|
July
|
Comments
|
|
Instrument
Hardware |
- |
- |
- |
- |
- |
|
|
Training
|
- |
- |
- |
- |
- |
|
|
Manuals |
15% |
15% |
16% |
22% |
22% |
Manual
outlines complete. Draft
Software manual 89% complete |
|
As-Built
Fabrication Drawings |
- |
- |
- |
- |
- |
|
Procurement: (99% complete overall).
|
|
Mar |
April |
May
|
June
|
July
|
Comments
|
|
Optics
|
98% |
99% |
99% |
99% |
100% |
|
Problems / Solutions
Slit mechanism rework and testing, radiation shield rework and instrument assembly have taken longer than planned.
Key Personnel
No
changes.
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|
|
|
National Optical Astronomy Observatories,
950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726,
Phone: (520) 318-8000, Fax: (520) 318-8360