November 95

May 18– June 27, 2001

Accomplishments / Status

Summary: Overall, 69% of the work from the Restart Review to delivery has been completed. The main focus of this report period has been 3D and 2D design of the Bulkhead Assembly, Passive Collimator, and support structure(s), and fabrication. All mechanisms are in fabrication except the Focus Assembly, which is in drafting check. The Pre-Slit and Post-Slit benches are in fabrication. Mechanism assembly and test will start July due to delays in fabrication.

The OIWFS components from Gemini are expected to arrive the week of July 9^th. The integration of the components onto the OIWFS bench and subsequent alignment will impact other work in process, primarily mechanism assembly and testing. We have hired an intern with optical technician experience to assist in component-to-bench fit check and alignment.

A GNIRS Quarterly Review was held on June 13. The review was attended by Mark Trueblood and Taft Armandroff (USGPO), Jeremy Mould (NOAO director), and Dan Weedman (NSF) by telecon.

The project is under-spending planned labor. This is due mainly to three factors: 1) detail design taking longer than planned, 2) delays in completing component fabrication (causing delays in using planned resources), and 3) our PM, AA, SW Eng, EE and ET have been shared with other project efforts. This has all contributed to fewer labor hours charged to the project. Sharing resources in item (3) has not impacted the critical path, or caused schedule delays.

Capital is also behind the spending plan due to the delays in releasing assemblies to fabrication. Spending should catch up to the plan by mid-August.

The project is 6 weeks behind schedule with respect to start of instrument integration. The fall 2002 delivery date is not impacted.

Next Milestone: The next major project milestone is the start of mechanism assembly and testing in July.

Earned Value:

	February	March	April	May	June
BCWS	$2,049,349	$2,278,192	$2,565,371	$2,732,977	$2,929,722
BCWP	$1,543,495	$1,694,322	$1,804.951	$1,912,351	$2,119,911
ACWP	$1,739,549	$1,839,301	$1,915,889	$2,031,750	$2,343,546
SPI	0.75	0.74	0.70	0.70	0.72
CPI	0.89	0.92	0.94	0.94	0.90

Project Management: (63% complete)

The project plan may be viewed on the GNIRS web site at: http://www.noao.edu/ets/gnirs/ under Management, Planning. 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 design and planning for Mechanism assembly and test.

Mechanical Design, Fabrication, Assembly and Test: (74% overall)

The major activity in this work package has been the 2D design of the Bulkhead Assembly and its interfacing components, bench fabrication, and 3D and 2D design of fixed assemblies.

Mechanisms: (86% complete overall)

	Feb	Mar	Apr	May	June	Status
Camera	69%	77%	78%	88%	90%	Fab
Focus	24%	24%	30%	48%	59%	Detail check
Environmental Cover	97%	99%	99%	99%	99%	Test (on-hold)
Acquisition Mirror	58%	68%	72%	75%	75%	Fab (waiting for mirror)
Slit/Decker	66%	77%	83%	85%	90%	Fab
Filter Wheel	71%	70%	73%	78%	83%	Assembly/test
Grating Turret	42%	51%	72%	83%	85%	Fab
Prism Turret	48%	47%	50%	56%	76%	Fab
Motor Drives	90%	90%	100%	-	-	Complete

Benches: (77% complete overall)

	Feb	Mar	Apr	May	June	Status
Post-Slit	56%	65%	70%	-	77%	Fab
OIWFS Bench	67%	67%	79%	-	86%	Waiting for parts from IFA
Collimator		29%	29%	46%	62%	Final parts in drafting check
Pre-Slit bench	44%	62%	70%	81%	83%	Fab

Fixed Assemblies: (40% complete overall)

	Feb	Mar	Apr	May	June	Status
Entrance Window	96%	100%	-	-	-	Complete
Detector Mount	48%	49%	60%	67%	68%	Detail check
Cryo Cooler	9%	16%	16%	16%	24%	2D drafting
LN2 Pre-Cool	4%	4%	17%	17%	84%	2D drafting
Optical Bench Gimbal Mt.	53%	53%	54%	56%	45%	(New estimate) Fab
Bulkhead Assembly	11%	24%	42%	52%	55%	Fab
Front Rad Shield	5%	5%	5%	5%	7%	3D design
Front Dewar Shell	26%	34%	37%	37%	37%	2D drafting
Rear Dewar Shell	6%	8%	21%	21%	26%	2D drafting
Vertical Inst Frame	5%	6%	6%	11%	31%	2D drafting
Horizontal Inst Frame	1%	-	-	-	8%	2D drafting
Dewar Mount Truss	12%	12%	12%	13%	47%	2D drafting
Thermal Enclosure Mount	2%	7%	10%	44%	53 %	2D drafting
Handling Fixtures	25%	58%	-	68%	68%	Fab (welding)

Electronics: (77% complete overall)

The Instrument controller design work is essentially complete and the main activity is fabrication. All electronics parts are either in house or on order. Gemini has approved a modification to the Power Supply Rack of the GNIRS Array Controller that replaces several analog supplies with a switching supply, and results in a 40 lb reduction in overall weight of the controller.

		Feb	Mar	Apr	May	June	Status
Component Controller TE		51%	68%	71%	75%	66%
	VME Crate	92%	100%	-	-	100%	SW testing
	Motor Drive/Cryo Cooler Crate	62%	94%	100%	-	100%	SW testing
	Internal Cabling and Connectors	12%	16%	16%	18%	100%
	Ancillary Cage Crate	26%	26%	26%	59%	63%	Assembly/wiring
	IfA Electronics Box	100%	-	-	-	-	Waiting for IfA
	Bench Thermal Controller Crate	-	-	61%	68%	94%	Assembly/wiring
External Cabling (Dewar to TE)		23%	23%	23%	23%	23%	On hold
The Dewar Warm-up Controller		37%	37%	37%	37%	37%	On hold; Rescheduled to later date
Dewar Electronics		-	71%	-	-	95%
	Dewar Cold Station PCB’s	60%	60%	50%	60%	80%	Ready for install and fit check
	Dewar Internal Conn/Cabling	-	72%	72%	72%	96%	Fab
Documentation			50%	50%	50%	85%

Software Development: (68% complete overall)

The areas in work include some testing software with the electronics crates. EPICS software is far ahead of schedule.

	Feb	Mar	Apr	May	June
Components Controller Software	67%	91%	91%	91%	91%
EPICS Software	60%	69%	69%	69%	75%
Test & DeBug	-	-	-	-	50%

Procurement: (67% complete overall)

The major activities in this Work Package included monitoring vendor mechanical and optical component assembly fabrication.

	Feb	Mar	Apr	May	June	Notes
Optics	-	67%	71%	73%	79%
RMI optics	100%	-	-	-	-	Complete
Flat Mirrors		10%	50%	50%	50%	Fab
Pupil Viewer	100%	-	-	-	-	Complete
BaF₂lenses	8%	50%	93%	75%	75%	July completion
Grating replicas	-	23%	50%	83%	86%	Fab
Prisms	-	13%	13%	23%	74%	Fab
Wollaston Prisms	-	-	0%	10%	40%	Fab

Problems / Solutions

None

Key Personnel

Jerry Penegor, GNIRS EE, is working with Barry Starr’s R&D group in parallel with GNIRS assignments. There is no negative impact to GNIRS.

Three interns have been hired to assist over the summer, two Optical Sciences students and one EE graduate student. One Optical Sciences student is assigned to preparing for OIWFS integration and the other to parts kitting and preparing for mechanism assembly/testing. The EE grad student is assigned to Jerry Penegor.

Richard Wolff will be retiring later this year. Peter Ruckle will assume the lead responsibility for software development on GNIRS as of October 1^st. Richard will be available as needed on a part time basis.

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