Quarterly Review
June 13, 2001
QUARTERLY REVIEW
June 13, 2001
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Quarterly Review
June 13, 2001
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Quarterly Review
June 13, 2001
GNIRS Quarterly Review
Table of Contents
• Introduction
• Project Summary
• Configuration & Integration
• Project Management
• Appendices
Pg 4
Pg 7
Pg 23
Pg 43
Pg 65
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Quarterly Review
June 13, 2001
Introduction
• This is the 5th GNIRS Quarterly Review
• GNIRS is in the final design and fabrication
phase
– Most of our “problems” are the delays in
fabrication which affect our low-level test and
integration schedules
4
Quarterly Review
June 13, 2001
Outline
• Project summary
– Last QR Response
– Progress Overview
– Cost and Schedule Status
•
•
•
•
•
Problems and Concerns
Integration plans
Project management
Plans for next review
Appendices
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Quarterly Review
June 13, 2001
Project Summary
•
•
•
•
Response to last QR report
Progress overview
Summary schedule
Budget and expenditures to date
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Quarterly Review
June 13, 2001
Planned Completions by this Quarterly Review
•
•
•
•
•
•
Complete fabrication of all mechanisms
Complete design of all fixed assemblies
Complete lens delivery and acceptance testing
Complete dewar cold station PCB fabrication
Complete dewar warm-up controller fabrication
Complete dewar-to-thermal enclosure cabling
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Quarterly Review
June 13, 2001
Task Status
Item
Status
Comments
Complete fabrication of all
mechanisms
Not Complete – two Camera
Barrels, Focus Stage in detail
design
Some rework will be required
as testing progresses.
Complete design of all fixed
assemblies
Not Complete – 10 of 19 fixed
assemblies completed design
Should complete the design of
the remaining items this quarter
Complete lens delivery and
acceptance testing
Not complete - One BaF2 was
broken by the vendor
Delivery of final lens is
scheduled for August.
Complete dewar cold station
PCB fabrication
Complete
Complete dewar warm-up
controller fabrication
Not Complete – start of this
activity has been rescheduled
Low priority activity that is not
needed until late in the project.
Complete dewar-to-thermal
enclosure cabling
Not Complete – design is
complete
Actual fabrication waiting for
final dimensions/length
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Quarterly Review
June 13, 2001
Exploded View
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Quarterly Review
June 13, 2001
Summary Project Plan
N
D
J
F
M
A
M
CY-2000
J
J
A
S
O
N
D
J
F
M
A
M
CY-2001
J
J
A
S
O
N
D
J
F
M
A
M
CY-2002
J
J
A
S
O
N
D
Systems Engineering
Rotary Mechanism Flexure Tests
Risk Reduction Prototypes
Fixed Assemblies Design/Fab
PFR
Integration/Alignment
Structural Analysis
MFR
ATP
IFU Modules
Bench Design/Fab/Assy
Ship
Manuals
OIWFS/Post-Slit/Pre-Slit
Training
WFS Integration/Alignment
OIWFS Hardware
Mechanism Design/Fab/Assy/Test
9 Mechanisms
Software Development/Code/Test
SW Plan/Low-Level/High-Level Code
Electronics Design/Fab/Test
GNIRS SUMMARY PLAN
Optics Procurement
Mirrors/Lenses/Filters/Gratings/Prisms
6/01
WP
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Quarterly Review
June 13, 2001
Project Status - Progress from August ’99
WBS element
5.0 Overall project
5.1 Management & Reporting
5.2 Systems Engineering
5.3 Mechanical
5.3.1 Mechanisms
5.3.2 Benches
5.3.3 Fixed Assemblies
5.4 Electronics
5.5 Software
5.6 Integration
5.7 Deliverables
5.8 Procurement
March Review
53%
51%
100%
52%
66%
55%
16%
63%
49%
0%
0%
54%
June Review
66%
61%
100%
70%
84%
70%
36%
59%
63%
0%
0%
67%
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Quarterly Review
June 13, 2001
Progress Overview
• The August 2002 delivery date of the instrument has not changed
• The project is currently 66% complete overall
– We are in the fabrication phase and in process of completing final design tasks
•
•
•
•
We have completed 92 of 224 total project milestones
Our critical path is completing 2D design and fabrication of fixed assemblies
Optics are either complete or in fabrication
Mechanical
–
–
–
–
Mechanism fabrication is essentially complete
Bench fabrication is near completion
All cold structure 3D design is complete
10 fixed assemblies remain to be designed
• Electronics fabrication is 2/3 complete
• Software low-level code development is in test
– EPICS code is in work
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Quarterly Review
June 13, 2001
Collimator Passive Compensation
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Quarterly Review
June 13, 2001
Comments on last quarter of work
• Design activity concentrated on
–
–
–
–
the Bulkhead Assembly design and release to fabrication
Detector-Focus Assembly design and release to fabrication
Passive Collimator 3D design
Start of Fixed Assembly design
• Fabrication – both in-house and vendor contracted
– Mechanical and electrical
• Detail planning for mechanism test and integration
• Interface issues and the envelope waiver
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Quarterly Review
June 13, 2001
Progress and Schedule Comments – The bottom line
• There are no known technical issues left to address
• We will enter the integration phase of the project about 6 weeks late
– Delaying integration has not impacted our fall-2002 delivery
– The first 3 months of integration schedule is flexible with respect to
integrating different mechanisms and assemblies
– We still have contingency built into the integration schedule
• The mechanical design effort is going extremely well but is taking
longer than planned
– 3D design is nearly complete – <10 fixed assemblies remain
– 2D detailing is the critical effort - should complete by mid-July
• Fabrication is running late on several key assemblies
– Primarily due to vendor delays
– This has impacted mechanism assembly/test
– Fabrication will continue through September - October
• Mechanism assembly/test has slipped to summer
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Quarterly Review
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Quarterly Review
June 13, 2001
Budget and Expenditures
• Baseline Estimate (Jan 99 to completion)
• Labor
• Capital
• Total
$3,391,232
$ 836,462
$4,227,694
• Current Forecast
Labor
Capital
Total
March Review
$2,866,775
$1,074,798
$3,941,573
June Review
$3,002,938
$1,181,900
$4,184,838
March Review
$ 1,754,979
$ 1,611,542
$ 1,742,651
0.92
0.92
June Review
$ 2,863,855
$ 2,011,383
$ 2,113,212
0.95
0.70
• Performance ratios
BCWS
BCWP
ACWP
CPI
SPI
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Quarterly Review
June 13, 2001
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Quarterly Review
June 13, 2001
Problems and Concerns
• Fabrication delays
• Vendor schedule performance issues are threatening to delay mechanism
testing and integration schedules
• Amount of rework is yet unknown w/respect to schedule allowance
• OIWFS component late delivery
• Will cause resources to be diverted from other activities to work on
OIWFS integration and test
• Scheduled delivery continues to slip
• IFU delivery will not occur as planned
• We will use mass models instead of the real units
• Integration at a late date will be complicated
• Flexure test rig on line by date needed (mid-February, 2002)
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Quarterly Review
June 13, 2001
Configuration Overview
• Envelope
• Weight and C.G. estimate
• Movement range of electronics boxes
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Quarterly Review
June 13, 2001
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Quarterly Review
June 13, 2001
Configuration - Overview
•Dewar and trusses fully defined
–Check/deal with envelope violations
–Weight and c.g. uncertainty reduced
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Quarterly Review
June 13, 2001
(envelope image)
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Quarterly Review
June 13, 2001
Configuration - Envelope
•Envelope waiver negotiated with
Gemini
–Intrusion into rear dealt with by removable
installation truss (normally removed)
–Intrusion into “underside” dealt with by
removable installation truss (normally
installed)
–Intrusion into service area near ISS dealt with
by waiver
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Quarterly Review
June 13, 2001
Configuration - Weight
•Weight is under control
–Weight requirement (budget): 4413 lb
–Weight estimate 3/01: 4115 lb
–Weight estimate 6/01: 3930 lb
–Estimated ~100 lb uncertainty through
integration
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Quarterly Review
June 13, 2001
Configuration - C. G.
•C. G. under control
–Requirement z=100 cm, x,y=0
–March/01 z=105 cm, x=4 cm, y=5 cm (4100
lb: error ~630 ft-lb = 860 N-m)
–June/01 z=104 cm, x=0, y=-3 cm (3930 lb:
error about the same)
–Electronics enclosures can be shifted in z,
increment ~40 ft-lb
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Quarterly Review
June 13, 2001
Configuration - Ballast
•Ballast will be needed
–Weight estimate implies need; include
ballast points in design
–C. G. correction will use <300 lb
–Additional ballast will be used to
“trim” instrument as required
31
Quarterly Review
June 13, 2001
Integration Overview
• Subsystem testing qualifies individual
mechanisms and optical assemblies
• Integration into bench permits check of warm
optics and mechanisms
• Integration of cold structure into dewar for
vacuum, cryo testing
• Final tests
32
Quarterly Review
June 13, 2001
Integration Overview
• Subsystem testing
• Bench integration/test
• Dewar integration
33
Quarterly Review
June 13, 2001
Subsystem Testing
• Qualifies sub-assemblies for integration
– Performance can be checked prior to final integration
– Problems are isolated
– Maximum time for problem fixes
34
Quarterly Review
June 13, 2001
Subsystem Testing
• Testing of mechanisms as outlined in previous
reviews
–
–
–
–
Warm functionality
Warm flexure
Cold functionality
Tests (esp. cold tests) without optics
35
Quarterly Review
June 13, 2001
Subsystem Testing
• Optics testing of “powered” sub-assemblies
–
–
–
–
Four cameras
Offner relay
Verifies performance, not required for alignment
Camera tests require calculation of thermal, wavelength
shifts
36
Quarterly Review
June 13, 2001
Bench Integration
• Add subsystems to bench after qualification
– Main bench completes in late July; clean and paint after fit checks
– Integrate prism turret, acquisition mirror immediately
– Pre-slit assembly (Offner, filter wheels, slit/decker) integration and
test complete early August
– Remaining mechanisms test and integration complete late August
(short red camera may slip?)
– OIWFS assembly and alignment must be done by August
37
Quarterly Review
June 13, 2001
Bench Integration
• Integration into bench permits warm optics and
mechanical check (uses warm MUX)
– Check (re-check) fit, alignment, repeatability
– Check image quality (“warm” predictions)
– Check flexure compensation calibration & performance
(but not flexure calculations)
38
Quarterly Review
June 13, 2001
Dewar Integration
• Integration of cold structure into vacuum vessel
– prior test of vacuum integrity
– should be here at next QR
• Re-test with MUX
– possible limited flexure test
• Install engineering array
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Quarterly Review
June 13, 2001
Dewar Integration
• Initial cool-down followed by tests outlined in
August ‘99 test plan
– start October
• Opportunities for IFU installation during testing;
schedule penalty varies
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Quarterly Review
June 13, 2001
Project Management
•
•
•
•
•
•
Project Status
Schedule & Planning
Milestones
Budget and Expenditures
Organization
Plans for Next Review
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Quarterly Review
June 13, 2001
Project Status – WBS 5.2 Systems Engineering
• Systems Engineering activities over this quarter
included
– Oversight of the top level design and interfaces
– Completion of flexure testing/evaluation of rotary
mechanism design approach
– Oversight of the passive collimator design
– Optical element evaluation
• Included prisms/gratings/mirrors/lenses
– Re-planning the initial phase of instrument integration
• In reaction to design and fabrication delays
– Envelope waiver submission
45
Quarterly Review
June 13, 2001
Project Status – WBS 5.3 Mechanical
Mechanism
Camera
Detector Focus
Environ Cover
Acquisition Mirror
Slit Decker
Filter Wheel
Grating Turret
Gratings
Prism Turret
Prisms
Motor Drives
%
89
46
99
75
85
83
85
86
74
74
98
Bench
Post-Slit
OIWFS
Collimator
POM/Offner
%
69
86
45
81
Fixed Assembly
Entrance Window
Cryo-cooler
Thermal Dist.
Bulkhead Rad Shield
LN2 Pre-Cool
Opt Bench Mount
Environ Cover Filter
Bulkhead
Front Rad Shield
Rear Rad Shield
Front Dewar Shell
Rear dewar Shell
Vert Inst Frame
Horiz Inst Frame
Dewar Mount Truss
TE Mount Truss
Shipping Container
Handling Fixture
%
100
18
0
0
84
43
0
57
3
0
37
26
17
5
23
53
0
68
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Quarterly Review
June 13, 2001
Project Status – WBS 5.3 Mechanical
• All mechanisms are in fabrication except two camera barrels
and the focus stage.
• All optical benches are in fabrication
• Fixed assembly 3D design remaining
–
–
–
–
–
Front/rear dewar shells
Radiation shields (4)
Thermal distribution assembly
Cryo-cooler and manifold
LN2 Pre-cool assembly
• Fixed assembly 2D detailing in-work
–
–
–
–
Detector mount assembly
Vertical and Horizontal installation frames
Dewar mount truss assembly
Thermal enclosure mount assembly
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Quarterly Review
June 13, 2001
Project Status – WBS 5.4 Electrical
• Design activities are completed
– schematic and parts list updates occur as needed
• Fabrication in progress
– Ancillary Crate is being assembled and harnessed,
will be completed and tested in June 2001
– final Component Controller crate (WFS Phytrons) to be delivered
– 1/3 of Component Controller internal harnessing is done
• Work Remaining
–
–
–
–
assemble and clean the Coldstation PCBs
finish the Thermal Enclosure internal harnessing
fab the TE to Dewar cables (are all simple 1:1 cables)
harness the Cold Mechanisms and Cold Bench as they become available
48
Quarterly Review
June 13, 2001
Project Status – WBS 5.5 Software
• Component Controller code 90% complete
• Code has been tested as far as possible
• Waiting for
• Completion of the electronics thermal enclosure
• Actual mechanisms
• High level (EPICS) code 70% complete
• Gemini DHS received, being evaluated
49
Quarterly Review
June 13, 2001
Project Status – WBS 5.8 Procurement
ASSEMBLY
LONG RED CAMERA
LONG BLUE CAMERA
CAMERA HUB ASSY
ACQUISTON MIRROR
SLIT DECKER HOUSING
SLIT SLIDE
FILTER WHEEL
GRATING TURRET
PRISM TURRET
POST SLIT BENCH
LONG CAMERA HOUSING
TOP CAMERA COVER
BOTTOM CAMERA COVER
OIWFS BENCH ASSY
COLLIMATOR TUBE
PICK OFF MIRROR ASSY
OPTICAL GIMBAL MOUNT
FOR BULKHEAD WELDMENT
AFT BULKHEAD WELDMENT
FIXED ASSEMBLIES
IN
VENTURA
OPTIICS FOR
HOUSE LANDMARK CHALLENGER OPTICAL RGI RESEARCH
1
1
1
OHYO
KOGYO BECHDON
TO BE
BID
2
1
3
1
1
1
1
1
2
2
2
1
3
1
1
1
1
2
2
1
1 BID
1 BID
9
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Quarterly Review
June 13, 2001
Project Status –Optics
• Lenses and Windows
• Only one BaF2 lens for short red camera remains
• Vendor remaking the last lens
• Mirrors
• All mirrors received except for POM and Acq Mirror
• POM and Acq Mirror are replicas, due in 4 weeks
• Flats are due in 3 weeks
• Gratings
• 2 Gratings in fabrication, due the end of June; 3rd received
• Filters
• 7 filters ordered through UH consortium; 2 failed spec and vendor is
expected to replace
• Prisms
• Wollaston prism due in 2nd half of August
• Cross-dispersion prisms due late July
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Quarterly Review
June 13, 2001
Project Milestones by Quarter
Number of
Calendar
Milestones Running
Year
Quarter
Due
Total
1999
4th
1
1
2000
1st
15
16
2000
2nd
13
29
2000
3rd
8
37
2000
4th
18
55
2001
1st
23
78
2001
2nd
45
123
2001
3rd
70
193
2001
4th
15
208
2002
1st
8
216
2002
2nd
3
219
2002
3rd
5
224
TOTAL
224
Number of
Milestones Running
Comp
Total
1
1
15
16
13
29
8
37
18
55
20
75
17
92
0
92
0
92
0
92
0
92
0
92
92
As of
6/8/01
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Quarterly Review
June 13, 2001
Work Package Status 8/99 thru 5/01
WBS
TITLE
5 GNIRS
DESCRIPTION
LABOR BUDGET
LABOR ACTUAL
Over/Under
AMOUNT
$1,812,398
$1,431,863
$380,535
CAP BUDGET
CAP ACTUAL
Over/Under
$718,054
$681,349
$36,705
5.1 Mgt & Reporting
LABOR BUDGET
LABOR ACTUAL
Over/Under
$596,080
$561,025
$35,055
5.2 Systems Eng
LABOR BUDGET
LABOR ACTUAL
Over/Under
$174,814
$223,383
($48,569)
CAP BUDGET
CAP ACTUAL
Over/Under
5.3 Mechanical
5.3.2 Benches
$38,658
$55,568
($16,910)
LABOR BUDGET
LABOR ACTUAL
Over/Under
$572,969
$511,531
$61,438
CAP BUDGET
CAP ACTUAL
Over/Under
$330,852
$308,707
$22,145
LABOR BUDGET
LABOR ACTUAL
Over/Under
$192,969
$172,957
$20,012
CAP BUDGET
CAP ACTUAL
Over/Under
$107,628
$55,801
$51,827
WBS
5.3.3
TITLE
Fixed Assys
DESCRIPTION
LABOR BUDGET
LABOR ACTUAL
Over/Under
CAP BUDGET
CAP ACTUAL
Over/Under
5.4 Electronics
5.5 Software
$173,099
$1,494
$171,605
LABOR BUDGET
LABOR ACTUAL
Over/Under
$79,121
$70,300
$8,821
CAP BUDGET
CAP ACTUAL
Over/Under
$12,050
$7,645
$4,405
LABOR BUDGET
LABOR ACTUAL
Over/Under
$56,371
$54,038
$2,333
CAP BUDGET
CAP ACTUAL
Over/Under
5.8 Procurement
AMOUNT
$280,216
$68,136
$212,080
LABOR BUDGET
LABOR ACTUAL
Over/Under
CAP BUDGET
CAP ACTUAL
Over/Under
$32
$32
$0
$4,019
$11,585
($7,566)
$126,931
$299,924
($172,993)
54
Quarterly Review
June 13, 2001
WBS - Total Project
55
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FTE
Quarterly Review
June 13, 2001
GNIRS Staffing FTE by Month
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
Month
Plan FTE
Actual FTE
56
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Hours
Quarterly Review
June 13, 2001
GNIRS Work by Month
6000
5000
4000
3000
2000
1000
0
Month
Actual
Baseline
Jun'01 Plan
57
Quarterly Review
June 13, 2001
GNIRS Cumulative Work
90000
79,725h
80000
70000
76,719h
[79,615h w/sci.]
50000
40000
43,605h
30000
20000
10000
0
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Hours
60000
Month
Actual
Baseline
Jun'01 Plan
58
Quarterly Review
June 13, 2001
GNIRS Capital Spend Plan
$1,400,000
$1,181,900
$1,200,000
$800,000
$715,967
$600,000
$759,192
$400,000
$200,000
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Dollars
$1,000,000
Month
Actual
Baseline
Jun'01 Plan
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Quarterly Review
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Quarterly Review
June 13, 2001
Director, NOAO
J. Mould
Gemini Projects
Project Manager
N. Gaughan
Project Assistant
D. Eklund (.5)
Project
Scientist,
Systems
Engineering
J. Elias
Support
Scientists
D. Joyce
B. Gregory
Intern
E. Mountford
Administrative Assistant
M. Bowersock
Mechanical
J. Elias
Engineers
E. Hileman
G. Muller
Optical
J. Elias
Engineer
M. Liang
Electrical
Engineer
J. Penegor
Procurement
& Vendor
Liaison
A. Davis
Mechanical
Designers
J. Andrew
D. Rosin
E. Downey
D. Circle
Instrument
Maker
J. Stein
R. Bennett
L. Lederer
R. Davis
Electrical
Technicians
R. George
General
Technician
J. Pina
Intern
A. Lowe
Intern
S. Kroto
M&P
B. Ditsler
Software
R. Wolff
Programmer
P. Ruckle
Staff Added: R. Bennett, L. Lederer, R.
Davis, Interns S. Kroto, E. Mountford, A.
Lowe
Staff Transferred: R. Robles
61
Updated 6/01
Quarterly Review
June 13, 2001
Plans for Next Review
• The Next Quarterly Review will be held in the September timeframe
• We will make significant progress in mechanism and optical subassembly
testing
• All optics to be received
• Flats/Prisms/Grating replicas
• Final mechanical assemblies to have completed fabrication
•
•
•
•
Bulkhead assembly (to be undergoing testing at vendor)
Dewar components (rad shields, shells, etc.)
Mounting trusses
Cryo hardware
• Electronics enclosure fabrication and checkout completed
• Final Component Controller Software testing will be in process
• OIWFS components integration/test should be completed
62
Quarterly Review
June 13, 2001
Conclusions
•
•
•
•
•
•
The current project status shows us to be 66% complete
We will complete the design phase over the next quarter
We are firmly into the fabrication phase of the plan
We are about 6 weeks behind baseline schedule
We are on track to deliver in fall 2002
The estimated cost of GNIRS is not significantly changed from
the August ’99 baseline
– Estimated total cost: $4,184,838 - January ’99 to delivery
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Quarterly Review
June 13, 2001
Appendix A – Images
Appendix B – Milestones
Appendix C – Envelope Waiver
65
Quarterly Review
June 13, 2001
Appendix A
Configuration and Fabrication
Images
66
Quarterly Review
June 13, 2001
Top Assembly
67
Quarterly Review
June 13, 2001
Top Assembly
68
Quarterly Review
June 13, 2001
Exploded View
69
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Top Camera Cover
70
Quarterly Review
June 13, 2001
Tangent Support Bar Bracket
71
Quarterly Review
June 13, 2001
Slit Decker Housing
72
Quarterly Review
June 13, 2001
Pickoff Mirror Housing
73
Quarterly Review
June 13, 2001
Pre-Slit Bench Aft Housing
74
Quarterly Review
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Lower Slit Slide Rail
75
Quarterly Review
June 13, 2001
Slit Slide Assembly
76
Quarterly Review
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Prism Turret Drive Assembly
77
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Grating Turret Drive Assembly
78
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Offner Assembly
79
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80
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Appendix B
Milestones
81
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Milestones since MFR (3/01)
WBS
5.8.1.1.1
5.1.4.2.2
5.2.5.5
5.2.5.6
5.2.5.8
5.3.3.1.3.5
5.3.3.16.1.4
5.3.1.4.4.2
5.4.1.2.5
5.3.1.8.2.6
5.3.3.9.1.5
5.3.1.2.2.2.4
5.3.1.104.5
5.3.1.2.3.1.3
5.3.2.4.2.3.3
5.3.3.14.1.4
5.3.3.15.1.5
5.3.3.17.1.5
5.3.3.19.4
5.3.2.3.3.2.4
5.3.2.1.8.3.2
5.3.2.3.2.1.5
5.3.3.13.1.5
5.3.3.9.2.6
5.3.1.8.6.4
5.3.3.12.1.5
5.3.2.1.8.4.4
5.3.3.6.1.3
5.3.1.6.3.3.6
5.3.1.2.3.2.4
5.3.1.2.4.3.6
5.3.3.17.2.6
5.3.2.3.2.2.4
5.3.1.7.3.2
5.3.3.11.1.4
5.3.1.6.2.3.5
5.3.3.3.1.4
5.3.2.1.6.3.2
TASK
RMI Optics Acceptance
Review
Design Axis 2 Wiring Diagram
Fab/Test Axis 2 Wiring Harness
Mechanism Test Set Complete
Entrance Window Assembly Fabrication Complete
Dewar Mount Truss Assembly Design Complete
Environmental Cover Assembly Testing Complete
Motor Drive / Cryohead Control Chassis Complete
Grating Turret Drafting Complete
Bulkhead Assembly Design Complete
Long Red Camera Drafting Complete
Motor Drive Assembly Complete
Long Blue Camera Design Complete
Offner Assembly Fabrication Complete
Vertical Installation Frame Assembly Design Complete
Horizontal Installation Frame Assembly Design Complete
Thermal Enclosure Mount Assembly Design Complete
Handling Fixtures Complete
Collimator Compensating Mount Design Complete
Bottom Camera Cover Fabrication Complete
Collimator Cover Box Design Complete
Rear Dewar Shell Design Complete
Bulkhead AssemblyDrafting Complete
Grating Fabrication Complete
Front Dewar Shell Design Complete
Bottom Camera Cover Complete
LN2 Pre-Cool Assemby Design Complete
Decker Slit Slide Fabrication Complete
Long Blue Camera Drafting Complete
Short Red Camera Barrel Complete
Thermal Enclosure Mount Assembly Drafting Complete
Collimator Cover Box Drafting Complete
Filter Wheel Assembly Fabrication Complete
Rear Radiation Shield Assembly Design Complete
Decker Slide Complete
Cryo Cooler Design Complete
LCFMH Fabrication Complete
Baseline Plan
6/16/00
11/20/00
NA
NA
9/29/00
6/8/01
1/5/01
8/7/00
8/29/00
6/7/00
9/26/00
10/4/00
8/2/00
5/31/00
9/11/00
12/4/00
12/5/00
1/23/01
NA
NA
7/21/00
5/5/00
3/29/01
2/21/01
11/28/00
2/26/01
7/26/00
11/16/00
12/5/00
11/27/00
8/2/00
3/14/01
8/7/00
1/10/01
3/19/01
9/11/00
9/26/00
8/1/00
Est. Plan
3/1/01
3/7/01
3/12/01
3/12/01
3/12/01
3/12/01
3/13/01
3/13/01
4/9/01
4/10/01
4/10/01
4/13/01
4/16/01
4/17/01
4/24/01
4/27/01
4/27/01
4/30/01
5/18/01
5/23/01
5/30/01
5/30/01
5/31/01
6/1/01
6/1/01
6/1/01
6/4/01
6/6/01
6/6/01
6/6/01
6/7/01
6/8/01
6/11/01
6/11/01
6/12/01
6/12/01
6/12/01
6/12/01
Act. Finish
3/1/01
3/8/01
3/12/01
3/12/01
3/12/01
3/12/01
3/13/01
NA
4/9/01
4/10/01
4/10/01
4/13/01
4/16/01
4/17/01
4/24/01
4/27/01
4/27/01
4/30/01
NA
5/23/01
NA
5/30/01
5/31/01
6/1/01
NA
6/1/01
NA
6/6/01
NA
6/6/01
NA
NA
NA
NA
NA
NA
NA
NA
83
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Appendix C
Envelope Waiver
85