March 24 – April 23, 2001
Accomplishments / Status
Summary: Overall, 61% of the work from the Restart Review to delivery
has been completed. The main focus
of this report period has been on the 3D design of the Bulkhead Assembly and its
associated components. All
mechanisms are either in drafting or fabrication.
The Pre-Slit and Post-Slit benches are in fabrication. Work has started
on several fixed assemblies. Mechanism
assembly and test will begin in May. The
OIWFS components from Gemini are expected to arrive in May and will be placed in
queue to wait for resources to begin integration onto the bench.
Next
Milestone:
The next major project milestone is the completion of the 3D design of the
Passive Collimator Compensation Assembly. This
will complete the design of the cold structure.
Earned
Value:
|
February |
March |
April |
|
|
BCWS |
$2,049,349 |
$2,278,192 |
$2,565,371 |
|
BCWP |
$1,543,495 |
$1,694,322 |
$1,804.951 |
|
ACWP |
$1,739,549 |
$1,839,301 |
$1,915,889 |
|
SPI |
0.75 |
0.74 |
0.70 |
|
CPI |
0.89 |
0.92 |
0.94 |
Project
Management:
(56% complete)
The
project plan may be viewed on the GNIRS web site at: http://www.noao.edu/ets/gnirs/
under Management, Planning. Work is being done to prepare for integration later
this year. The August 2002
scheduled delivery date of the GNIRS instrument has not changed.
Systems
Engineering:
(100% of planned work)
The
main focus has been support of the Bulkhead Assembly design.
Mechanical
Design, Fabrication, Assembly and Test: (49% overall)
The
major activity in this work package has been 3D and 2D design of the Bulkhead
Assembly and its interfacing components, bench fabrication, and fixed
assemblies. The Passive Collimator
Compensator Assembly design is 50% complete.
Mechanisms:
(78% complete overall).
|
|
Feb |
Mar |
Apr |
Status |
|
Camera |
69% |
77%
|
78% |
2D
detail/Fab |
|
Focus |
24% |
24% |
30% |
2D
detail |
|
Environmental
Cover |
97% |
99% |
99% |
Test |
|
Acquisition
Mirror |
58% |
68% |
72% |
Fab |
|
Slit/Decker |
66% |
77% |
83% |
Fab |
|
Filter
Wheel |
71% |
70% |
73% |
Fab |
|
Grating
Turret |
42% |
51% |
72% |
Fab |
|
Prism
Turret |
48% |
47% |
50% |
Fab |
|
Motor
Drives |
90% |
90% |
100% |
|
Benches:
(59% complete overall).
|
|
Feb |
Mar |
Apr |
Status |
|
Post-Slit
|
56%
|
65% |
70% |
Fab |
|
OIWFS
Bench |
67% |
67% |
79% |
Waiting
for parts from IFA |
|
Collimator |
29% |
29% |
Design/Fab |
|
|
Pre-Slit bench |
44% |
62% |
70% |
Fab |
Fixed
Assemblies:
(19% complete overall).
|
|
Feb |
Mar |
Apr |
Status |
|
Entrance
Window |
96% |
100% |
100% |
96% |
|
Detector
Mount |
48%
|
49% |
60% |
2D
detail |
|
Cryo
Cooler |
9% |
16% |
3D
design |
|
|
LN2
Pre-Cool |
4%
|
4% |
17% |
3D
design |
|
Optical
Bench Gimbal Mount |
53%
|
53% |
54% |
3D
design |
|
Bulkhead
|
11%
|
24% |
42% |
2D
detail |
|
Front
Rad Shield |
5% |
5% |
3D
design |
|
|
Front
Dewar Shell |
26%
|
34% |
37% |
3D
design |
|
Rear
Dewar Shell |
6%
|
8% |
21% |
3D
design |
|
Vertical
Inst Frame |
5%
|
6% |
6% |
3D
design |
|
Horizontal
Inst Frame |
1%
|
1% |
1% |
3D
design |
|
Dewar
Mount Truss |
12%
|
12% |
12% |
3D
design |
|
Thermal
Enclosure Mount |
2%
|
7% |
10% |
3D
design |
|
Handling
Fixtures |
25% |
58% |
Fab |
|
Electronics:
(70% complete overall)
The
design work is essentially complete and the main activity is fabrication.
All electronics parts are either in house or on order.
|
|
|
Feb |
Mar |
Apr |
Status |
|
Component
Controller TE |
51%
|
68% |
71% |
|
|
|
|
VME
Crate |
92%
|
100% |
100% |
SW
testing |
|
|
Motor
Drive/Cryo Cooler Crate |
62%
|
94% |
100% |
|
|
|
Internal
Cabling and Connectors |
12%
|
16% |
16% |
assembly/wiring |
|
|
Ancillary
Cage Crate |
26%
|
26% |
26% |
assembly/wiring |
|
|
IfA
Electronics Box |
100%
|
100% |
100% |
waiting
for IfA |
|
|
Bench
Thermal Controller Crate |
|
|
61% |
assembly/wiring |
|
External
Cabling (Dewar to TE) |
23%
|
23% |
23% |
assembly/wiring |
|
|
The
Dewar Warm-up Controller |
37%
|
37% |
37% |
assembly/wiring |
|
|
Dewar
Electronics |
|
71% |
|
|
|
|
|
Dewar
Cold Station PCB’s |
60%
|
60% |
50% |
boards
being stuffed |
|
|
Dewar
Internal Conn/Cabling |
|
72% |
72% |
ready
for fab |
|
Documentation |
|
50% |
50% |
schematic
cleanup |
|
Software
Development:
(62% complete overall).
The
areas in work include pressure sensing and Status/Health.
EPICS software is far ahead of schedule.
No actual progress reported this month.
|
|
Feb |
Mar |
Apr |
|
Components
Controller Software |
67%
|
91% |
91%
|
|
EPICS
Software |
60%
|
69% |
69%
|
Procurement:
(61%
complete overall).
The
major activities in this Work Package included quotes for the prisms and
monitoring vendor mechanical fabrication.
|
|
Feb |
Mar |
Apr |
Notes |
|
Optics
procurement |
|
67% |
71% |
|
|
RMI
optics |
100% |
100% |
100% |
all
lenses received |
|
Flat
Mirrors |
|
10% |
50% |
Fab |
|
Pupil
Viewer |
100% |
100% |
100% |
lenses
received |
|
Janos
four BaF2 lenses |
8%
|
50% |
93% |
on
schedule |
|
Grating
replicas |
|
23% |
50%
|
Fab |
|
Prisms |
|
13%
|
13% |
Fab
– no report |
|
Wollaston
Prisms |
|
|
0% |
Japanese
vendor selected |
Problems / Solutions
2D design is on the critical path on the project. No contract people have been found that are familiar with Solidworks. Drafting staff has been further reduced due to family leave and illness. The engineers are working to support 2D detailing as required.
A critical resource will be Bill Ditsler beginning mid-May when mechanism assembly/test begins. Bill is also tasked with KPNO duties over the period we will need his support on GNIRS. This issue is being worked.
Key Personnel
A fourth instrument maker is scheduled to join the project in May. Dale Circle is away on family leave, due to return at the end of April.
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