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

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?

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)

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

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

Optics/iBTF/FPs

Structure & Mechanics

Detector System

Software, Integration Test & Commissioning

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?