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AUSTRALIAN NATIONAL UNIVERSITY Monthly
Report 7 Created: 8 September 2000 Last modified: 15 September 2000 |
MONTHLY REPORT FOR AUGUST 2000
Jan van Harmelen
Research
School of Astronomy and Astrophysics
Institute
of Advanced Studies
Australian
National University
Revision
History
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Revision No. |
Author & Date |
Approval & Date |
Description |
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Revision 1 |
Jan
van Harmelen 8 September 2000 |
Peter McGregor 15 September 2000 |
Original document. |
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Contents
There
is no worthwhile progress to report on NIFS science.
Although the NIFS
contract has not been fully executed at this point in time, RSAA submits this
monthly report on NIFS activities, covering the period from 31 July to 1
September 2000.
The period of
uncertainty waiting for NSF approval of the NIFS contract continues. RSAA
continued to ramp up design and fabrication work, appoint extra staff and place
orders for equipment and materials, acknowledging the financial risks involved.
Our commitments have now reached a level where we have become hesitant to place
further significant orders. This may cause delays in the purchase and delivery
of long leadtime items, eventually impacting on project completion. It is also
holding up negotiations on a contract for cooperation with UH.
Progress on CC and IS
software development, control system design and procurement, and cryostat and
OIWFS duplication is being hampered by the non-availability of NIRI as-built
documentation.
The search for
competent design and workshop staff continues. The two mechanical design
engineer positions advertised recently received a poor response and have not
been filled. Leigh Pfitzner, a designer from Auspace Ltd. is working at RSAA
from 14 August till end of October to overcome the skills shortage. Other
avenues to fill these positions will be explored.
The NIFS plan also
calls for the temporary (18 months) appointment of three machinists in the
workshop to fabricate parts for the NIRI duplication and later for the
spectrograph. Mid June one casual appointment was made to start the work while
the positions were advertised. A new appointee started on 21 August, the second
on 4 September. The third position will be readvertised.
The advertisement for
an electronics technical officer has brought a disappointing response and the
situation will be reviewed soon. This is a continuing position vacated earlier
in the year, which needs to be filled to allow the fabrication of the NIFS
control system.
Our review of the
optical design of the spectrograph is nearing completion. The previously
reported problems with the camera design have been resolved. Camera ghosting
has been reduced to below background level.
The assembly design of
the grating mechanism is nearing completion, and a first pass design of all
other spectrograph assemblies is also progressing well.
The mechanical
workshop has continued to fabricate components for the NIRI duplication and
more orders have been placed for fabrication of some of the large structures.
The lead times for the delivery of the large forgings are pushing the assembly
and integration of the vacuum jacket and OIWFS out too far. Careful
consideration of the details of these tasks will allow us to regain some of
this time.
The NIRI control
system drawings obtained from IfA were used to compile a parts list for
procurement.
After gaining an
understanding of the operation of the NIRI Components Controller software, it
is being modified to reflect the different NIFS mechanisms. Further work based
on the preliminary version of the NIRI CC may be inefficient, and if an up to
date version does not become available soon, it may be better to switch
attention to understanding the Instrument Sequencer. The detector controller
software design has not progressed.
There has been little
progress on the detector system design as Mark Downing was involved in the
commissioning of the RSAA/AAO Wide Field Imager. This instrument will no longer
require his involvement and he can now spend most of his time on NIFS.
Assuming that the RSC
detector contract will be executed on 21 September, science detector delivery
will take place 558 days after this date, or on 2 April 2002. Our plan includes
three months characterization at UH, time for transport to RSAA and another six
weeks verification before integration in NIFS at the start of the fifth
cooldown cycle. This pushes the date for transportation of NIFS to Hawaii out
to December 2002.
Even though a design
could be completed by the proposed December 2000 CDR date, some aspects would
not receive the attention they require and a number of issues raised at the
CoDR would not yet be resolved. As the NIFS delivery date is primarily driven
by the science detector availability and secondarily by the cryostat and OIWFS
completion, which had a late start, a delay in CDR date till late February 2001
will not impact on project completion. Such a delay will allow us to experiment
with detector temperature control, resolve issues relating to the manufacture
of the IFU, possibly having test pieces manufactured, and provide a more than
cursory analysis of stray light and mechanical stability.
The following tasks were completed during the reporting period:
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Task WBS |
hrs |
Finish Date |
Title |
Deliverables |
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2.6.6 |
29.5 |
1 Sep 00 |
Detector Purchase1 |
nil |
Notes
2.1.1
NIFS Critical Design
- Project Management
A continuing task. JvH: 49 hrs. Management and
planning of software effort: PJY 28 hrs.
2.1.6
PS Miscellaneous
A continuing task to record various activities.
PJM: 35 hrs.
2.2.1
Revise OCDD
No progress this period.
2.2.3
Science Case
No progress this period.
2.3.1
Requirements
Analysis
No progress this period.
2.4.1
Revise Ante
Camera Optical Design (completed)
Incorrectly reported in last month’s report as
191 hrs, should be 240 hrs, add 49 hrs.
2.4.12
Revise Nominal
Specifications
Started in conjunction with next task, JH: 7
hrs.
2.4.13
Determine
Temperature Compensated Specifications
Final optics design. JH: 82 hrs
2.4.14
Refine Ghost
Analysis
No progress this period.
2.5.2.2
Determine General
Mechanical Configuration
A first pass mechanical design for all
spectrograph assemblies. PC: 75 hrs.
2.5.2.3
Disperser Turret
Design
Continued: PC 32 hrs, LP 80 hrs.
2.5.2.4
Develop IFU
Investigate manufacturing methods. PC: 8hrs.
2.5.2.10
Design Entrance
Turret
Assembly design for entrance turret. PC: 7 hrs
2.5.2.13
Design Baffle
System
PC: 28 hrs.
2.5.2.12
Detector Mount
Design
No progress this period.
2.7.4
Component
Controller Software
MJ: 141 hrs.
4.1.1
Cryostat and
OIWFS Duplication – Project Management
A continuing task. JvH: 18 hrs.
4.2.1
Cryostat and
OIWFS Duplication – Design and Supervision
A continuing task. GJ: 168 hrs, CV: 41 hrs
supervision and procurement.
4.2.2 Cryostat and OIWFS
Duplication – Parts Fabrication
Workshop
effort 391 hrs this period. (This amount includes a correction. In the previous
report, workshop effort was incorrectly reported as 127 hrs, which was work
only started in August. The actual August work was 518 hrs)
4.3.1
Control system –
Design and Supervision
Prepare purchasing list and request quotes.
MID: 77 hrs.
5.8.7.1
Test Cryostat
Temperature Control – Design Control system
No progress this period.
No documents were issued during the reporting period:
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Document ID |
Rev |
Date |
Title |
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The current schedule
is the schedule included in the “NIFS Revised Costing”. A schedule revised for
the expected delivery dates of the detectors and the late start on cryostat and
OIWFS duplication has been developed. It also takes into account the proposed
delayed CDR. This revised schedule, in the form of a MS Project 2000 file, will
follow soon after submission of this monthly report.
17 people have
contributed to the NIFS project during this period. They worked a total of 1410
hours, bringing the total for the project to 2683 hrs, which represents
approximately 8.8% of the total number of hours in the current project plan.
Listed below are the milestones defined in the NIFS contract. No
milestones were due during the reporting period.
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Event |
Date |
Status |
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(1)Contract fully signed |
August 2000 |
pending |
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(2) Placement of order for vacuum
jacket forging |
August 2000 |
completed |
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(3) AURA approval of Final FPRD
and OCDD |
5 December 2000 |
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(4) AURA approval of Detailed
Design Documentation after CDR |
January 2001 |
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(5) Start of first Cryostat and
OIWFS cooldown |
14 May 2001 |
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(6) Completion of Cryostat and
OIWFS Duplication (As task is described in Conceptual Design Documentation) |
4 October 2001 |
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(7) Completion of Spectrograph
Construction (As task is described in Conceptual Design Documentation) |
22 March 2002 |
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(8) Authorization to ship
instrument given by AURA |
19 July 2002 |
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(9) Completion of all Work and
Final Acceptance given by AURA |
1 October 2002 |
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The exchange rate used
is the rate applicable to a particular transaction, or the rate on the last day
of the reporting period. On 1 September 2000 the rate was 0.575.
No income was gained
during the reporting period.
The NIFS account was
charged for 1375 hrs of work from 31 July to 1 September 2000. This is the
total number of hours (1410) minus the hours for the Project Scientist (35).
The total charge is US$48,125 (A$83,696)
The following
expenditure was incurred during the reporting period.
2.1.1
Project
Management
Various stationery US$ 58 A$ 100
4.2.2
Cryostat and
OIWFS Duplication – Fabrication – Aluminium, part of orders
O’Brien Aluminium US$ 793 A$ 1,380
4.2.2.4
Cryostat and
OIWFS Duplication – Fabrication - Window Cover Construction
ITW Finishing Technologies US$ 594 A$ 1,011
4.6
Cryostat and
OIWFS Duplication – Consumables
Freight, sockets, bolts US$ 162 A$ 282
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total US$ 1,607 A$ 2,773
The ANU accounting
system also includes ‘commitments’, where a purchase order has been raised, but
goods or services have not yet been delivered, invoiced and paid. New
commitments are listed here, but not included in the financial status report.
4.2.3
Cryostat and
OIWFS Duplication – Fabrication – Aluminium for all parts
O’Brien Aluminium US$ 3,709 A$ 6,450
|
Date |
Description |
Income (US$) |
Income (A$) |
Outgoings (US$) |
Outgoings (A$) |
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29 Jul 00 |
Labour |
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37,940 |
64,524 |
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01 Sep 00 |
Labour |
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48,125 |
83,696 |
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01 Sep 00 |
Other Costs |
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1,607 |
2,773 |
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29 Jul 00 |
Balance |
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87,672 |
150,993 |
The problems with the
optical design of the spectrograph camera have been resolved.
The design of the
grating mechanism and flip mirror has progressed satisfactorily since it was
accepted that the previously required repeatability could not be achieved and
specifications were revised.
The purchase and
delivery of items on the critical path of the project may be delayed because of
RSAA hesitation to commit to large external purchases without the backing of a
contract (refer to next paragraph)
To the date of writing
this report, RSAA has spent approximately US$110k on NIFS labour and has
ordered US$70k in materials without the backing of a contract. Not
surprisingly, processing the order for another large component, the OIWFS
Optable (US$26k), has been suspended.
RSAA will continue to provide labour for the project, but intends to
limit its exposure to large external commitments.
The following Action Items are outstanding.
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No. |
Action |
Who |
Status |
Due Date |
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1 |
ICD16
Parameter Definition Format. Clarification |
RAN |
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2 |
Revise
NIFS schedule to reflect FPA delivery lead time |
JvH |
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3 |
Generate
ordered list of "As Built" NIRI drawings |
JvH |
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4 |
Negotiate
delivery schedule for As Built NIRI drawings with IfA |
RAN |
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5 |
Determine
status of NIRI manuals |
RAN |
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6 |
Determine
specifications and manufacturer of NIRI CaF2 window |
RAN |
Closed Information provided |
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7 |
Make
tar archive of operational NIRI software |
RAN |
In progress |
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8 |
Determine
status of IfA OIWFS fabrication |
RAN |
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9 |
Send 7
cryo stepper motors to ANU |
RAN |
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10 |
A
flip-in acquisition mirror will be incorporated into the design |
JvH |
Closed. Documentation to be
changed as required |
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