Prime Focus Imaging Spectrograph Status All lenses figured

Prime Focus Imaging Spectrograph Status • All lenses figured and coated; collimator & camera in assembly • Slitmask, waveplate, shutter, grating, articulation, filter mechanisms wired and tested • Structure in final machining at Rutgers • CCD detector delivery from SAAO this week • VPH gratings shipping; beamsplitter due next month • Control system electronics boxes tested • Mechanism S/W coded/ tested; PI tool in progress • With 100% major purchases received or awarded, use of budget reserve is 99% • Concerns: schedule. Arrival at Sutherland slipped to ~15 Dec May 17, 2004 SSWG 1

Lens Optics field flattener rework for dewar seal Na. Cl triplet in assembly May 17, 2004 • Collimator- problems with clean room; Na. Cl lens assembly. Delivery late this month (4 months late). Pacing item. • Camera- delivery late June • Detector- delivery this week (4 months late). Have 1 month for S/W integration SSWG 2

Collimator & Camera Assembly Main Group: including solgel and Na. Cl Collimator May 17, 2004 Field Lens Doublet Final Doublet SSWG Camera Barrel 3

Other Optics Delivered 100 mm superachromatic halfwave plate 3000 l/mm VPH Grating Slitviewer Optics Not delivered (very late): Etalons; Beamsplitter May 17, 2004 SSWG 4

CCD Detector Field Flattener on cryostat May 17, 2004 SSWG 5

Detector Engineering First Light Full Image: M 83 May 17, 2004 SSWG 6

Structure/ Mechanisms Grating Server Collimator Optics Camera Detector Dewar Slit Mask Server Waveplate Mechanism Filter Server Articulation Rail May 17, 2004 SSWG Fabry-Perot Etalons Open Truss Structure 7

Structure Welded invar structure: Welding, heat treatment completed In finish machining Due end of May (4 months late) Dolly; test fixture ready Pacing item May 17, 2004 SSWG 8

Mechanisms Slitmask Server Waveplate Rotator May 17, 2004 SSWG 9

Mechanisms – II 162 mm shutter Grating Server Filter Server May 17, 2004 SSWG Mechanism Effort: about 4 months late 10

Budget: Procurement Status Low bid PDR Estimate Item Ca. F 2 Blanks Fused Silica Blanks Na. Cl Blanks Fused Quartz Blanks Lens Fabasphere Company $120, 260 Oken 4 wk Bicron Corning, Oken $10, 020 Hilger 6 wk Rubicon $13, 650 Oken 75 d 20 wk Heraeus TORC, Tinsley Coastal, TORC, HJOL $9975 Dynasil $98, 116 $33, 000 Coastal spheres Mg. F 2/ Solgel coatings Multilayer Coatings $168, 714 Waveplates $120, 000 Beamsplitter $44, 100 May 17, 2004 Now Deliv ery Other bidders 80 d Status Received, including $32, 800 in spares Received, including 1 spare Received, including 4 replacements Received $26, 935 Janos Cleveland $55, 918 Crystal Spectrum $21, 261 Thin Films 8 wk 6 wk RMI Received $101, 466 Halle Karl $53, 100 Lambrecht 6 mo 30 wk none Received Reynard Awarded SSWG 8 wk Received 11

Procurement Status - II Item PDR Estimate Now VPH Substrates Low bid Company deliv $11, 850 United Lens VPH Coatings $30, 000 VPH Fabrication $7, 100 Opto. Sigma $24, 950 Wasatch SR Grating $8, 696 Richardson Color Filters Color Filter Coatings $10, 000 Slitviewer Optics Status 30 d HJOL, Coastal Received 4 wk Spectrum Thin Films Awarded CSL, KOSI Awarded, 1 of 5 received 8 wk 10 wk Zolotech Barr, Custom 14 wk Scientific Received 4 wk Opto. Sigma Awarded $3, 247 TORC 6 wk Coastal, HJOL, Edmund, Zygo Received 4 mo LPKF, ART Received $15, 580 Omega Spectrum $5, 875 Thin Films Slitmask Cutter $120, 000 $124, 599 US Laser Total $590, 930 $647, 482 May 17, 2004 Other bidders SSWG Awarded 12

Budget: Cost-to-Completion • • With 100% of major purchased equipment received or awarded, have used 99% of budgeted reserve $55 K of CTC is SAAO foreign exchange losses; use of reserve would be 92% if excluded May 17, 2004 SSWG 13

Budget: Deltas • Positive deltas (since last meeting/ expected) – – – – Optics and Invar actual cost overrun Machining underestimate Optomechanical (esp beamsplitter) Schedule stretchout SAAO labor For. Ex losses Schedule stretchout Flattener rework and slitviewer mounting Tot $52 K $27 K $23 K $86 K $30 K $218 K $45 K? $10 K? $55 K? • Negative Deltas – Mechanism/ control system purchases – Dolly Design – Resale of Ca. F 2 spares Projected Total ~$30 K over cap with SAAO Forex ~$30 K under without May 17, 2004 SSWG -$21 K -$19 K -$40 K -$25 K? $208 K? 14

Concern: Schedule • Subsystem deliveries ~ 4 months late • Used remaining schedule slack; parallel integration schedule to recover ~1. 5 months • Integration & testing phase manpower: graduate student, postdoc (UW contribution) • Uncertain test phase schedule: how much needs to be done before shipping? • Ship 4 Nov, 2004 • Arrive Sutherland 15 Dec, 2004 • Uncertain commissioning schedule – telescope commissioning – sky availability of planned targets May 17, 2004 SSWG 15

Integration Schedule May 17, 2004 SSWG 16

Testing and Commissioning Schedule • This part of schedule needs to be detailed. . . May 17, 2004 SSWG 17