AUSTRALIAN NATIONAL UNIVERSITY System Design Note 12.02 Created: 29 April 2000 Last modified: 29 April 2000

NIFS REVISED COSTING

Jan van Harmelen

Research School of Astronomy and Astrophysics

Institute of Advanced Studies

Australian National University

Revision History

Revision No.	Author & Date	Approval & Date	Description
Revision 1	Jan van Harmelen 20 April 2000		Original document.
Revision 2	Jan van Harmelen 28 April 2000	Peter J. McGregor 28 April 2000	Updated cost, included schedule and resourcing information

Contents

1 Purpose. 2

2 Applicable Documents. 2

3 Introduction. 2

4 Cost 2

4.1 Estimates. 2

4.2 Goods and Services Supplied by University of Hawaii 5

4.3 Gemini Supplied Items. 5

4.4 Costing Uncertainties and Contingencies. 6

5 Schedule. 6

6 Resourcing. 7

7 Appendices. 9

7.1 Detailed Gantt Chart 9

1 Purpose

Cost and schedule estimates were presented at the Gemini Near-infrared Integral-Field Spectrograph (NIFS) Conceptual Design Review based on the assumption that risks should be minimized by duplicating large parts of the NIRI design and subcontracting this duplication work to the NIRI developers at the Institute for Astronomy (IfA) of the University of Hawaii (UH). The cost of this approach was considered to be excessive so the NIFS team was asked to provide a new, reduced costing based on most of the work being executed in Australia. This document describes this revised costing.

2 Applicable Documents

Document ID	Source	Title
SDN0012.00	RSAA	NIFS CoDR Management Plan

3 Introduction

The costing for the Gemini Near-infrared Integral-Field Spectrograph (NIFS) presented at the Conceptual Design Review (CoDR) was considerably in excess of initial estimates. This costing was based on the Institute for Astronomy (IfA) of the University of Hawaii delivering a fully tested duplicate of the NIRI cryostat, On-Instrument Wavefront Sensor (OIWFS), and instrument control system to the Research School of Astronomy and Astrophysics (RSAA). An outcome of the review was that NIFS should be recosted based on the bulk of the duplication work being performed by RSAA. This has led to a cost reduction from the US$2,996,319 quoted at the CoDR to US$2,443,993 (Table 1) with a delay of only one month in the delivery date.

There are several contributions to the NIFS cost reduction:

· A major contribution from the reduced cost of the NIRI duplication. This is largely brought about by the lower Australian labour cost and by RSAA not charging overheads.

· Alternative solutions were identified at the CoDR for the supply of “support equipment” including helium compressors and vacuum pumps.

· It was also suggested to remove the cost of the instrument commissioning phase, instead funding that separately on a time and materials basis.

· Some hardware items were identified which could be obtained from Gemini spares stock without cost.

· The recommendation to use the final detector wiring in the test cryostat also produces a minor cost saving.

· More savings flow from combining the NIFS specific control system design and manufacture with the duplication of the NIRI control system.

· Other savings have resulted from integrating the assembly and test phases of the NIRI duplication with those of the NIFS spectrograph.

4 Cost

4.1 Estimates

Table 1 shows the cost of NIFS, excluding the detector, commissioning, and some items to be supplied by Gemini at no cost from spares stock. This cost is US$2,443,993. The cost of the HAWAII-2 HgCdTe/PACE detector is US$350,000, and commissioning is roughly estimated at US$52,000.

Table 2 provides a breakdown of the Spectrograph development cost, while Table 3 shows the cost of duplication of the NIRI Cryostat and IOWFS at RSAA.

Table 1: NIFS Cost

Table 2: Spectrograph Development Cost Breakdown

Table 3: NIRI Duplication at RSAA

This duplication cost results from detailed examination of mechanical and electrical/electronic construction drawings supplied by UH. It assumes that all manufacturing, assembly and testing will be carried out at RSAA, except for a number of OIWFS components which are to be fabricated by UH as part of a Gemini contract to supply these parts to other instrument developers and the duplication of the OIWFS detector system.

Also included are amounts for “UH Consultancies” and travel to allow us to enlist the assistance of the NIRI developers to speed the duplication process and overcome problems during the assembly and test phase.

4.2 Goods and Services Supplied by University of Hawaii

We propose to procure the goods and services listed in Table 4 from the University of Hawaii. The cost of the detector system is based on our estimate of effort and materials required, at a rate of $70/hr and needs to be negotiated with UH.

Table 4: UH Supplied Items

Item	Cost
OIWFS Mechanism Parts	$ 46,474
OIWFS Detector System (excl. Controller)	$ 58,000
Consultancies	$ 100,000
Travel related to Consultancies	$ 29,000
total	$ 233,474

4.3 Gemini Supplied Items

Table 5 lists the items to be supplied by Gemini. The items marked with "*" are assumed to be available from Gemini (or UH) at no cost.

Table 5: Gemini Supplied Items

Item Description	Cost ($US)
Tornado 1.0.1 license (inc PPC BSP, Solaris/PPC doc set)	$ 9750
Tornado 2.0 license (inc PPC BSP, Solaris/PPC doc set)	$ 9750
Capfast 2 user license	$ 5200
Cisco Ethernet switch – 2916 with 2 port 100BFX	*
BayNetworks Annex 2000 Remote Access Server (estimate!)	*
OCC IOC (also for IS and OIWFS CC) - MVME2700 (366MHz,64MB,100BT) - MVME761-001 - BC635VME Bancomm time bus card - 21 slot VME crate (Elma)	$ 4090 $ 293 $ 1895 $ 2970
DC IOC - MVME5100 (500MHz,512MB,100BT) (available mid 2000) - MVME761-001 - BC635VME Bancomm time bus card - 21 slot VME crate (Elma)	$ 12000 $ 293 $ 1895 $ 2970
Thermal Enclosures	$ 14000
Order Blocking Filters	$ 2936
Oregon Stepper Motor Controllers VME 8-8	$ 5685
Cryogenic Stepper Motors	*
Helium Compressors and Accessories	*
OIWFS Detector	*
OIWFS filters and Shack-Hartmann prism	*
NIRI OIWFS Software and Detector Controller DSP Code	*
NIRI CC and IS Software	*
NIRI Documentation, Drawings, etc.	*
total	$ 73,737

4.4 Costing Uncertainties and Contingencies

Along with the preparation of the estimates for the costing, the uncertainty of the estimates was recorded. Summation of all error amounts produces the total maximum expected error. Contingencies were then allocated to both the NIRI Duplication work and the NIFS Spectrograph.

The NIRI duplication uncertainty is shown in Table 6 together with the contingencies from the costing. As the NIRI duplication carries lesser risks than new instrument development because there is little innovative design effort required, we consider the level of contingency provided in the costing above to be adequate.

Table 6: NIRI Duplication Cost Uncertainty

For the NIFS spectrograph development the uncertainties are shown in Table 7. As there is considerably more risk involved in the development of new instrumentation, in this case notably the Integral Field Unit, we think it prudent to allow a contingency close to the total uncertainty.

Table 7: NIFS Spectrograph Cost Uncertainties

5 Schedule

We have developed an aggressive schedule driven by a completion date one month later than originally planned, with the instrument shipped to Hawaii in the third quarter of 2002.

An overview if this schedule is shown in Figure 1. A more detailed Gantt Chart is provided in Appendix §7.1.

Figure 1: NIFS Schedule

6 Resourcing

To realize the success-oriented schedule proposed above, RSAA needs to enlist considerably more resources than are currently available.

• One more Mechanical Designer needs to be added to the NIFS team. For scheduling purposes Glen Jones, a current contract employee, is proposed, but a new hire may be required.
• The original NIFS plan used one of our permanent workshop staff and two contract machinists. This number will now have to be increased to three, and the contractors will need to start soon.
• The work on the control system will require a full time electronics engineer. The Electronics Section is currently undergoing some restructuring and a current staff member or a new hire will take on these duties.
• The control system construction work will require two full time technicians for the remainder of the year and one thereafter. This means that a current vacancy has to be filled without delay to bring the section strength back to three technicians. Because of their other duties, we may require an additional temporary appointment.

A considerable amount of machining and fabrication work will be subcontracted to local engineering firms.

7 Appendices

7.1 Detailed Gantt Chart