November 95

GNIRS PROGRESS REPORT

January 1 – January 31, 2002

Accomplishments / Status

Summary: 87% of the work from the Restart Review to delivery has been completed. Progress was made on mechanism testing, radiation shield design, Pre-Slit bench optics installation and alignment, grating turret and camera turret flexure testing, and Camera Barrel assembly.

The Radiation Shield design should be complete and into fabrication by mid-February. Mechanism work in process includes Camera, Prism Turret, and Focus assembly. The Slit-Decker and Filter Wheel assemblies are being prepared for cold testing.

The integration of the actual WFS HgCdTe detector is yet to be done, and the Gemini-furnished prism is still pending.

Change orders for delivery of GNIRS to Chile, including Testing, Training, and Commissioning, and for the Differential Pressure Switch, are still in process.

Next Milestone: The next major project milestone is the completion of Active Radiation Shield design by February 28^th.

Earned Value:

	Jun	Jul	Aug	Sept	Oct	Nov	Dec	Jan
BCWS	$2,929,722	$2,976,073	$3,030,916	$3,085,811	$3,145,000	$3,192,781	$3,236,748	$3,304,286
BCWP	$2,119,911	$2,182,434	$2,357,289	$2,526,319	$2,573,084	$2,617,408	$2,884,471	$2,911,411
ACWP	$2,343,546	$2,392,603	$2,603,604	$2,762,963	$2,938,004	$3,122,731	$3,313,415	$3,383,383
SPI	0.72	0.73	0.78	0.82	0.82	0.82	0.89	0.88
CPI	0.90	0.91	0.91	0.91	0.88	0.84	0.87	0.85

This table reflects planned and actual charges to the project as of January 31, 2002. We have spent $1,351,673 in capital to date.

Project Management: (81% 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 date of the GNIRS instrument is October 24, 2002, due to the delays in finishing the Radiation Shields and Mechanism testing.

Systems Engineering: (100% of planned work)

The main focus has been mechanism assembly, cold test preparation, and support of design updates.

Mechanical Design, Fabrication, Assembly and Test: (94% overall)

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

Mechanisms: (98% complete overall).

	Apr	May	June	July	Aug	Sept	Oct	Nov	Dec	Jan	Status
Camera	78%	88%	90%	91%	91%	91%	92%	98%	99%	99%	Test
Focus	30%	48%	59%	59%	60%	67%		73%	89%	92%	Assembly
Environmental Cover	99%	99%	99%	99%	99%	99%	99%	99%	99%	99%	on-hold
Acquisition Mirror	72%	75%	75%	75%	76%	93%	93%	-	89%	89%	Assembly
Slit/Decker	83%	85%	90%	90%	93%	93%	93%	95%	99%	99%	Test
Filter Wheel	73%	78%	83%	83%	95%	95%	95%	95%	96%	96%	Test
Grating Turret	72%	83%	85%	86%	89%	97%	98%	-	98%	98%	Test
Prism Turret	50%	56%	76%	85%	92%	98%	98%	-	95%	95%	Test
Motor Drives	100%	-	-	-	-	-	-	-	-	-	Complete

Benches: (98% complete overall). Benches are complete. The Collimator has a few parts still in fabrication, and is nearly ready for assembly. Wiring of the benches will be done in Integration.

	Apr	May	Jun	July	Aug	Sept	Oct	Nov	Dec	Jan	Status
Post-Slit	70%	-	77%	88%	94%	99%	100%	-	-	-	Complete
OIWFS	79%	-	86%	87%	89%	99%	100%	-	-	-	Complete
Collimator	29%	46%	62%	64%	77%	95%	-	-	95%	95%	Assembly
Pre-Slit	70%	81%	83%	87%	91%	99%	100%	-	-	-	Complete

Fixed Assemblies: (86% complete overall). The Radiation Shields are the pacing items in fixed assemblies.

	Apr	May	June	July	Aug	Sept	Oct	Nov	Dec	Jan	Status
Entrance Window	-	-	-	-	-	-	-	-	-	-	Complete
Detector Mount	60%	67%	68%	79%	79%	97%	97%	-	96%	100%	Complete
Cryo Cooler	16%	16%	24%	49%	51%	59%	59%	70%	88%	89%	Fab
Molecular Sieve								45%	100%	-	Complete
Thermal Distribution Assembly					12%	26%	-	-	52%	75%	Fab
Bulkhead Rad Shield					1%	5%	9%	53%	100%	-	Task closed
LN2 Pre-Cool	17%	17%	84%	89%	91%	91%	91%	-	79%	83%	Fab
Optical Bench Gimbal Mt.	54%	56%	45%	85%	95%	100%	-	-	-	-	Complete
Bulkhead Assembly	42%	52%	55%	64%	74%	75%	90%	98%	100%	-	Complete
Passive Rad Shield	5%	5%	7%	10%	10%	10%	16%	42%	41%	74%	2D design Fab
Active Rad Shield					18%	18%	30%	42%	15%	39%	3D/2D design
Front Dewar Shell	37%	37%	37%	38%	66%	70%	88%	100%	-	-	Complete
Rear Dewar Shell	21%	21%	26%	-	57%	61%	82%	100%	-	-	Complete
Vertical Inst Frame	6%	11%	-	-	14%	77%	84%	92%	99%	100%	Complete
Horizontal Inst Frame	-	-	8%	8%	15%	57%	57%	100%	-	-	Complete
Dewar Mount Truss	12%	13%	47%	47%	47%	47%	73%	-	84%	85%	Fab
Thermal Enclosure Mount	10%	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).

		May	June	July	Aug	Sept	Oct	Nov	Dec	Jan	Status
Component Controller TE		75%	66%	-	90%	86%	86%	-	72%	72%
	VME Crate	-	-	-	-	-	-	-	-	-	SW testing
	Motor Drive/Cryo Cooler Crate	-	-	-	-	-	-	-	-	-	SW testing
	Internal Cabling and Connectors	18%	90%	98%	98%	98%	98%	100%	-	-	Complete
	Ancillary Cage Crate	59%	63%	98%	98%	98%	98%	100%	-	-	Complete
	IfA Electronics Box	-	-	-	30%	30%	30%	30%	30%	33%	In check out
	Bench Thermal Controller Crate	68%	94%	98%	98%	98%	98%	70%	100%	-	Complete
External Cabling (Dewar to TE)		23%	23%	23%	23%	23%	23%	23%	23%	36%
The Dewar Warm-up Controller		37%	37%	37%	37%	37%	37%	-	59%	87%
Dewar Electronics		-	95%	-	95%	95%	95%	95%	60%	60%
	Dewar Cold Station PCB’s	60%	80%	80%	80%	80%	80%	80%	80%	80%	Ready for install and fit check
	Dewar Internal Cabling	72%	96%	-	96%	96%	96%	-	58%	58%	On Hold – waiting for dewar
Documentation		50%	85%	-	95%	95%	95%	95%	95%	95%
Software Test Fixture					100%	-	-	-	-	-	Complete
Array Controller Upgrade									100%	-	Complete

Software Development: (82% complete overall).

The areas in work include testing software with the electronics crates, working on the EPICS software and on the OIWFS software. Resources assigned to the software task are also working on the Gemini Array Controller. Task percentage complete changes shown are due to rescheduling.

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

Alignment and Integration: (24% complete overall)

	Dec
Telescope Simulator	62%
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
Instrument Hardware	-	-
Training	-	-
Test plans	46%	99%
Manuals	-	-
As-Built Fabrication Drawings	-	-

Procurement: (88% complete overall).

	Apr	May	June	July	Aug	Sept	Oct	Nov	Dec	Jan	Notes
Optics	71%	73%	79%	-	89%	86%	86%	86%	86%	90%
RMI optics	-	-	-	-	-	-	-	-	-	-	Complete
Flat Mirrors	50%	50%	50%	-	99%	99%	99%	100%	-	-	Complete
Pupil Viewer	-	-	-	-	-	-	-	-	-	-	Complete
BaF₂lenses	93%	75%	75%	-	75%	90%	90%	99%	100%	-	Complete
Grating replicas	50%	83%	86%	-	100%	100%	-	-	-	-	Complete
Prisms	13%	23%	74%	-	95%	100%	-	-	-	-	Complete
Wollaston Prisms	0%	10%	40%	-	95%	100%	-	-	-	-	Complete
Simulator Optics										10%

Problems / Solutions

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

Key Personnel

Ed Hileman has rejoined the project for the Active Radiation Shield design effort.

If you have any questions or suggestions regarding this website, please contact Melissa Bowersock.

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