November 95

GNIRS PROGRESS REPORT

February 1 – February 19, 2002

Accomplishments / Status

Summary: 87% of the work from the Restart Review to delivery has been completed. Progress was made on radiation shield design and Camera Barrel assembly cold testing.

The Passive Radiation Shields are in fabrication. The active Shields have completed 3-D design and are about midway through 2-D detailing. These shields should be into fabrication the first week in March.

The Camera Assembly is now in cold test functional testing. It should complete this week. After cold testing, the optics will be installed into the camera barrels and the completed assembly installed into the Post-Slit Bench.

The Slit/Decker Assembly has been reworked to accommodate changes in the IFU module (as requested by Durham and directed by Gemini). This assembly has been modified and cleaned, and is currently being re-assembled and readied for warm and cold testing. Cold tests will include the entire Pre-slit Assembly (two Filter Wheels, Slit/Decker, Fore-Optics).

The Grating Turret is being prepared for cold test. Either it or the Pre-slit Assembly is next to be cold tested. Wiring of the benches is in process. This involves wiring temperature sensors, heaters, and harnessing for mechanisms, etc.

It appears that neither the OIWFS Prism nor the IFU will be available in time for integration into the GNIRS before the instrument is assembled.

Next Milestone: The next major project milestone is the release of the Active Radiation Shields to fabrication by February 28^th.

Earned Value:

	Jul	Aug	Sep	Oct	Nov	Dec	Jan	Feb
BCWS	$2,976,073	$3,030,916	$3,085,811	$3,145,000	$3,192,781	$3,236,748	$3,304,286	$3,344,496
BCWP	$2,182,434	$2,357,289	$2,526,319	$2,573,084	$2,617,408	$2,884,471	$2,911,411	$2,930,888
ACWP	$2,392,603	$2,603,604	$2,762,963	$2,938,004	$3,122,731	$3,313,415	$3,383,383	$3,453,168
SPI	0.73	0.78	0.82	0.82	0.82	0.89	0.88	0.88
CPI	0.91	0.91	0.91	0.88	0.84	0.87	85.	85.

This table reflects planned and actual charges to the project as of February 19, 2002. NOAO has spent $1,376,194 in capital to date.

Project Management: (83% complete)

The project plan may be viewed on the GNIRS web site at: http://www.noao.edu/ets/gnirs/ under Management, Planning. The current scheduled delivery of the GNIRS instrument is October 2002.

Systems Engineering: (100% of planned work)

The main focus has been mechanism assembly and cold testing, and support of design changes and updates.

Mechanical Design, Fabrication, Assembly and Test: (95% overall)

The major activity in this work package has been 3-D and 2-D design of radiation shields and fabrication.

Mechanisms: (97% complete overall).

	May	Jun	July	Aug	Sept	Oct	Nov	Dec	Jan	Feb	Status
Camera	88%	90%	91%	91%	91%	92%	98%	99%	99%	99%	Test
Focus	48%	59%	59%	60%	67%		73%	89%	92%	88%	Fab & Assembly
Environmental Cover	99%	99%	99%	99%	99%	99%	99%	99%	99%	99%	on-hold
Acquisition Mirror	75%	75%	75%	76%	93%	93%	-	89%	89%	89%	Assembly
Slit/Decker	85%	90%	90%	93%	93%	93%	95%	99%	99%	99%	Test
Filter Wheel	78%	83%	83%	95%	95%	95%	95%	96%	96%	96%	Test
Grating Turret	83%	85%	86%	89%	97%	98%	-	98%	98%	98%	Test
Prism Turret	56%	76%	85%	92%	98%	98%	-	95%	95%	95%	Test
Motor Drives	-	-	-	-	-	-	-	-	-	-	Complete

Benches: (98% complete overall). Benches are complete. The Collimator for assembly.

	May	Jun	July	Aug	Sept	Oct	Nov	Dec	Jan	Feb	Status
Post-Slit	-	77%	88%	94%	99%	100%	-	-	-	-	Complete
OIWFS	-	86%	87%	89%	99%	100%	-	-	-	-	Complete
Collimator	46%	62%	64%	77%	95%	-	-	95%	95%	95%	Assembly
Pre-Slit	81%	83%	87%	91%	99%	100%	-	-	-	-	Complete

Fixed Assemblies: (88% complete overall). The Radiation Shields are the pacing items in fixed assemblies.

	May	June	July	Aug	Sept	Oct	Nov	Dec	Jan	Feb	Status
Entrance Window	-	-	-	-	-	-	-	-	-	-	Complete
Detector Mount	67%	68%	79%	79%	97%	97%	-	96%	100%	-	Complete
Cryo Cooler	16%	24%	49%	51%	59%	59%	70%	88%	89%	87%	Fab
Molecular Sieve							45%	100%	-	-	Complete
Thermal Distribution Assembly				12%	26%	-	-	52%	75%	75%	Fab
Bulkhead Rad Shield				1%	5%	9%	53%	100%	-	-	Task closed
LN2 Pre-Cool	17%	84%	89%	91%	91%	91%	-	79%	83%	83%	Fab
Optical Bench Gimbal Mt.	56%	45%	85%	95%	100%	-	-	-	-	-	Complete
Bulkhead Assembly	52%	55%	64%	74%	75%	90%	98%	100%	-	-	Complete
Passive Rad Shield	5%	7%	10%	10%	10%	16%	42%	41%	74%	83%	Fab
Active Rad Shield				18%	18%	30%	42%	15%	39%	56%	2-D design
Front Dewar Shell	37%	37%	38%	66%	70%	88%	100%	-	-	-	Complete
Rear Dewar Shell	21%	26%	-	57%	61%	82%	100%	-	-	-	Complete
Vertical Inst Frame	11%	-	-	14%	77%	84%	92%	99%	100%	-	Complete
Horizontal Inst Frame	-	8%	8%	15%	57%	57%	100%	-	-	-	Complete
Dewar Mount Truss	13%	47%	47%	47%	47%	73%	-	84%	85%	100%	Complete
Thermal Enclosure Mount	44%	53%	53%	58%	70%	89%	96%	100%	-	-	Complete
Handling Fixtures	68%	68%	68%	100%	100%	-	-	-	-	-	Complete
Ballast Weights					75%	83%	100%	-	-	-	Complete

Electronics: (89% complete overall).

		June	July	Aug	Sept	Oct	Nov	Dec	Jan	Feb	Status
Component Controller TE		66%	-	90%	86%	86%	-	72%	72%	72%
	VME Crate	-	-	-	-	-	-	-	-		SW testing
	Motor Drive/Cryo Cooler Crate	-	-	-	-	-	-	-	-		SW testing
	Internal Cabling and Connectors	90%	98%	98%	98%	98%	100%	-	-		Complete
	Ancillary Cage Crate	63%	98%	98%	98%	98%	100%	-	-		Complete
	IfA Electronics Box	-	-	30%	30%	30%	30%	30%	33%		In check out
	Bench Thermal Controller Crate	94%	98%	98%	98%	98%	70%	100%	-		Complete
External Cabling (Dewar to TE)		23%	23%	23%	23%	23%	23%	23%	36%	36%
The Dewar Warm-up Controller		37%	37%	37%	37%	37%	-	59%	87%	100%	Complete
Dewar Electronics		95%	-	95%	95%	95%	95%	60%	60%	60%
	Dewar Cold Station PCB’s	80%	80%	80%	80%	80%	80%	80%	80%	80%	Ready for install and fit check
	Dewar Internal Cabling	96%	-	96%	96%	96%	-	58%	58%	58%	On Hold – waiting for dewar
Documentation		85%	-	95%	95%	95%	95%	95%	95%	95%
Software Test Fixture				100%	-	-	-	-	-	-	Complete
Array Controller Upgrade								100%	-	-	Complete

Software Development: (86% complete overall).

The areas in work include testing software with the electronics crates, working on the EPICS software and on the OIWFS software.

	May	June	July	Aug	Sept	Oct	Nov	Dec	Jan	Feb
Components Controller Software	91%	91%	-	91%	94%	94%	94%	85%	86%	86%
Test & DeBug	-	50%	-	50%	75%	75%	75%	95%	100%	-
EPICS Software	69%	75%	-	82%	82%	82%	-	96%	99%	99%

Alignment and Integration: (27% complete overall)

	Feb
Telescope Simulator	69%
I. Dewar and Structure	-
II. Mechanical Integration	-
III. Warm Tests	-
IV. Cold Tests	-

Deliverables: (45% complete overall)

Work in this area has focused on the preparation test plans for acceptance testing.

	Dec	Jan	Feb
Instrument Hardware	-	-	-
Training	-	-	-
Test plans	46%	99%	99%
Manuals	-	-	2%
As-Built Fabrication Drawings	-	-	-

Procurement: (88% complete overall).

	June	July	Aug	Sept	Oct	Nov	Dec	Jan	Feb	Notes
Optics	79%	-	89%	86%	86%	86%	86%	90%	90%
RMI optics	-	-	-	-	-	-	-	-	-	Complete
Flat Mirrors	50%	-	99%	99%	99%	100%	-	-	-	Complete
Pupil Viewer	-	-	-	-	-	-	-	-	-	Complete
BaF₂lenses	75%	-	75%	90%	90%	99%	100%	-	-	Complete
Grating replicas	86%	-	100%	100%	-	-	-	-	-	Complete
Prisms	74%	-	95%	100%	-	-	-	-	-	Complete
Wollaston Prisms	40%	-	95%	100%	-	-	-	-	-	Complete
Simulator Optics								10%	10%

Problems / Solutions

Radiation Shields remain the pacing item on the project. Cleaning and testing mechanisms is also a high priority item.

Durham has raised serious issues with the IFU interface. We have modified the Slit-slide to accommodate a requested change, with a minor impact on the overall project schedule of about 1 week.

Key Personnel

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