Prime Focus Imaging Spectrograph Status

1
Prime Focus Imaging SpectrographStatus

• 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

2
Lens Optics

• Collimator- problems with clean room NaCl 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

3
Collimator Camera Assembly
Main Group including solgel and NaCl
Field Lens Doublet
Final Doublet
Collimator
4
Other Optics
Delivered
3000 l/mm VPH Grating
Not delivered (very late) Etalons Beamsplitter
5
CCD Detector
Field Flattener on cryostat
6
Detector Engineering First Light Full Image M83
M 83
7
Structure/ Mechanisms
Grating Server
Collimator Optics
Camera
Detector Dewar
Slit Mask Server
Waveplate Mechanism
Filter Server
Articulation Rail
Open Truss Structure
Fabry-Perot Etalons
8
Structure
Welded invar structure Welding, heat treatment
completed In finish machining Due end of May (4
months late) Dolly test fixture ready Pacing item
9
Mechanisms
Slitmask Server
Waveplate Rotator
10
Mechanisms II
162 mm shutter
Grating Server
Mechanism Effort about 4 months late
Filter Server
11
Budget Procurement Status
Item PDR Estimate Now Low bid Low bid Other bidders Status
Item PDR Estimate Now Company Delivery Other bidders Status
CaF2 Blanks 98,116 120,260 Oken 80d Bicron Received, including 32,800 in spares
Fused Silica Blanks 98,116 9975 Dynasil 4 wk Corning, Oken Received, including 1 spare
NaCl Blanks 98,116 10,020 Hilger 6 wk Rubicon Received, including 4 replacements
Fused Quartz Blanks 98,116 13,650 Oken 75 d Heraeus Received
Lens Fab- asphere 168,714 33,000 Coastal 20 wk TORC, Tinsley Received
spheres 168,714 26,935 Janos 8 wk Coastal, TORC, HJOL Received
MgF2/ Solgel coatings 55,918 Cleveland Crystal 8 wk Received
Multilayer Coatings 21,261 Spectrum Thin Films 6 wk RMI Received
Waveplates 120,000 101,466 Halle 6 mo none Received
Beamsplitter 44,100 53,100 Karl Lambrecht 30 wk Reynard Awarded
12
Procurement Status - II
Item PDR Estimate Now Low bid Low bid Other bidders Status
Item PDR Estimate Now Company deliv Other bidders Status
VPH Substrates 30,000 11,850 United Lens 30 d HJOL, Coastal Received
VPH Coatings 30,000 7,100 OptoSigma 4 wk Spectrum Thin Films Awarded
VPH Fabrication 30,000 24,950 Wasatch 8 wk CSL, KOSI Awarded, 1 of 5 received
SR Grating 8,696 Richardson 10 wk Zolotech Received
Color Filters 10,000 15,580 Omega 14 wk Barr, Custom Scientific Awarded
Color Filter Coatings 10,000 5,875 Spectrum Thin Films 4 wk OptoSigma Awarded
Slitviewer Optics 3,247 TORC 6 wk Coastal, HJOL, Edmund, Zygo Received
Slitmask Cutter 120,000 124,599 US Laser 4 mo LPKF, ART Received
Total 590,930 647,482
13
Budget Cost-to-Completion

• With 100 of major purchased equipment received
  or awarded, have used 99 of budgeted reserve
• 55K of CTC is SAAO foreign exchange losses use
  of reserve would be 92 if excluded

14
Budget Deltas

• Positive deltas (since last meeting/
  expected) Tot
• Optics and Invar actual cost overrun 52K
• Machining underestimate 27K
• Optomechanical (esp beamsplitter) 23K
• Schedule stretchout 86K
• SAAO labor ForEx losses 30K 218K
• Schedule stretchout 45K?
• Flattener rework and slitviewer
  mounting 10K? 55K?
• Negative Deltas
• Mechanism/ control system purchases -21K
• Dolly Design -19K -40K
• Resale of CaF2 spares -25K? -25K?
• Projected Total 208K?
• 30K over cap with SAAO Forex
• 30K under without

15
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

16
Integration Schedule
17
Testing and Commissioning Schedule

• This part of schedule needs to be detailed...