SALT PFIS Preliminary Design Review

1
Southern African Large TelescopePrime Focus
Imaging Spectrograph

• Management, Schedule, Budget
• Jeffrey W Percival
• Kenneth H Nordsieck
• University of Wisconsin - Madison

2
PFIS Organization Chart

• All team members in place
• PFIS PI
• Director of Space Astronomy Laboratory
• Professor of Astronomy
• Reports to the Chairperson of the UW Dept. of
  Astronomy

3
Management Details

• Quarterly reports, including schedule budget
• Monthly status reports posted to web site within
  5 working days after end of month
• Document numbering use SALT standard
• File formats various, according to need.
  AutoCAD, Word, Excel, STEP, IGES, etc. PDF for
  publishing.
• Schedule management Microsoft Project
• Budget management
• MS Project for big picture, estimated cost to
  complete
• Excel for detailed budgeting and accounting

4
Interface Management

• Three interfaces Rutgers, SAAO, SALT.
• Governed by Statements of Work and ICDs
• Finalize SOWs and ICDs at CDR
• Interface changes categorized
• Refinement of detail, all parties in agreement
• Modification of interface, no effect on
  performance, cost, or schedule
• Modification, affects performance, cost, and/or
  schedule
• 3rd category of change involves SALT Project
  Scientist

5
Quality Assurance

• SAL has extensive experience in building
  spaceflight hardware
• Wisconsin Ultraviolet Photo-Polarimeter
  Experiment
• Hubble Space Telescope High Speed Photometer
• Sounding Rocket Payloads
• Star Trackers
• Will apply this experience to PFIS
• Ruggedized manufacture
• Multi-level testing (component, subsystem,
  system)

6
Contingency Management

• Procurement contingency 15 for all purchased
  items
• Budget Contingency 6 months of labor (3 for
  Critical Design, 3 for Fabrication Test)
• Schedule Contingency very tight (risk)
• Critical path items
• Slips in design and fabrication
• Delivery of Detector Subsystem
• Timely access to the telescope
• Earliest possible notification of problems,
  between all affected parties, is essential
• Cross-institutional impacts on cost schedule...

7
Schedule Approach

• 5 Sequential phases
• Concept Design
• Preliminary Design
• Critical Design
• Fabrication and Test
• Delivery and Installation
• 4 parallel efforts
• Long Lead Optics
• Slit Mask Factory
• Etalon Assemblies
• Detector Subsystem

8
Budget Approach

• Some people (ME, IS, PM) assigned at 100 for
  duration of summary tasks
• Effort-driven work (Mechanical Designer,
  Machinist) assigned per task
• Design and fabrication estimates (both labor and
  materials) taken from detailed analysis by Swales
  Aerospace.
• UW charges
• 45.5 for overhead
• 33 for fringe benefits on labor expenses
• 0 for capital equipment (optics, electronics)

9
Management Controls

• Vigilant oversight as work proceeds
• For each task, compare degree of completion with
  expended resources red flag for tasks that fall
  off the curve
• Frequently re-estimate cost to complete, and
  compare with remaining resources

10
Schedule (page 1/2)
11
Schedule (page 2/2)