1. USP-IAG Universidade de São Paulo
Brazilian Tunable Filter Imager (BTFI) Preliminary Design Review (PDR)‏
Management Summary
(Keith Taylor)
Version 1.0
USP-IAG Universidade de São Paulo
18-19th June 2008 1

2. Compliance Matrix Science requirements Interface requirements
BTFI almost completely compliant with
Science requirements
Interface requirements
Compliance Matrix incorporated into Requirements Document
as updated since CoDR
So what are the exceptions?

3. Non- (or partial) compliance
Each filter wheel contains a maximum of 4 filters
Filter wheel is under remote operation (unplanned at PDR)
FPs cannot be removed from instrument w’out dismantling
No angular adjustment of FPs
Full-up weight still uncertain but is of decreasing concern
New iBTF gratings will be aligned in SOAR telescope optics lab
Non-exitant, but strong lobby from Tighe (and ourselves)
Director says “$$s available”
Optics procurement
Unmounted or in barrels (tbc)? – await final optics bids
Camera shutter – woops; forgot about this!
CryoTiger not LN2
Commissioning to Hand-over support logistics (tbd)

4. Risk Register Organised, as follows
Available on Wiki as an Excel Spread-sheet
Organised, as follows

5. My favourite risks Operation & Maintenance SAM interface Optics
Detector controller
CCCP-v1 result encouraging
Reliability & Maintainability uncertain
Etalon controller
Absolute capacitance servo - Gravity effects?
SAM interface
SAM availability – what is role of BTFI in SL-mode?
Optics
FP performance – unproven technology
Pipe-line Data Reduction
Robust but user-friendly algorithmics
Scientific impact requires avoidance of off-line DR, if at all possible

6. Optics/iBTF/FPs

7. Structure & Mechanics

8. Detector System

9. Software, Integration Test & Commissioning

10. Conclusions (from PM perspective)
Capable, well-motivated, team
Geographic dispersion appears not to be a problem
Opportunities to involve post-docs from USP and elsewhere
Adequate budget with opportunities to bid for enhancements
More gratings, filters, contingencies etc
Technology (iBTF, EMCCD, SESO, 2-channel)
Excitingly, new but tractable
Not everything has to work at 1st light
Opto-mechanical design - compliant with science goals
Credit to Damien & Rene
Electronics & Software - under control
Positive interaction with SOAR staff
SAM availability - biggest concern from a science impact perspective
In the interim: is it possible to give BTFI a 6arcmin. seeing-limited FoV?