Colossus team meeting, Waterton, September 6-8, 2012

The Colossus team has met at Waterton, Canada, to discuss goals of the Colossus telescopes, its technology and science. Among others, such topics as real-world experience building Worlds Largest Telescope (D. Halliday), the Colossus unintentional SETI problem (J. Kuhn), astronomy and non-astronomy cases for Colossus (S. Berdyugina), PLANETS as Colossus technology demonstration (S. Okano), baseline mechanical, optical and control system technologies were discussed.

Participants:

Michael Bakich, Chief Editor Astronomy Magazine
Svetlana Berdyugina, Director/Prof. Kiepeneuer Institute for Solar Physics, Extrasolar Planets and Stars
Dave Eicher, Editor Astronomy magazine
Steve Griffin, Boeing Technical Fellow and Chief Engineer, Palace Knight Fellow
Olivier Guyon, (remote), Assoc. Prof. Univ. of Arizona and Astronomer, Subaru Telescope
David Halliday, Prof. (adj) UBC Civil Eng. Founder Dynamic Structures, Ltd, CA; President and Director of Special Projects (Order of Canada)
Caisey Harlingten, Founder and President of SearchLight Observatory Network, CA
Jeff Kuhn, Prof. Astrophysics, Institute for Astronomy, University of Hawaii, Colossus Project Leader
Maud Langlois, (remote), Adaptive Optics Expert, CNRS, France
Randy Marusyk, Patent Attorney MBM
Gilberto Moretto, Optical Designer, CNRS, France
Shoichi Okano, Prof. (emeritus) Astronomy Tohoku University, Japan
Mauricio de Oliveira, Prof. of Mechanical and Aerospace Engineering, UC San Diego
Joe Ritter, Physicist, Institute for Astronomy, University of Hawaii
Robert Skelton, Prof. Emeritus University California, San Diego, Member National Academy of Engineering
Stanley Truitt, (remote), Senior Optical Fabricator (retired)
Peter Wangsness, Founder of Wangsness Optics, Tucson, AZ; Innovative ultra-light mirror technologies
Simon Peter Worden, Director NASA - Ames Research Center
Erika Sohn, Luis Salas, Esteban Luna,Elfego Ruiz, Gloria Koenigsberger, (remote), UNAM group,Mexico

Programme:

Thursday, September 6, 2012

Session 1: What and Why Colossus?

9:00 Caisey Harlingten: Introduction, Colossus Background History/Goals
9:30 Jeff Kuhn: Worlds Largest Telescopes, Background, Goals, Colossus Fundamentals
10:00 David Halliday: Past real-world experience building Worlds Largest Telescope (Keck) and the TMT process
10:30 Group discussion: The current landscape of WLTs: TMT, EELT, GMT; Colossus relationship with ongoing WLT efforts

12:00 Lunch break

2:00 Svetlana Berdyugina: Why 50-100m? The astronomy and non-astronomy case for Colossus
2:30 Jeff Kuhn: Private funding and the Colossus unintentional SETI problem
3:00 Sho Okano: PLANETS as Colossus technology demonstration, status and plans
3:30 Group discussion: A non-public Colossus project? Acceptable technology and strategy risks, defining Colossus performance metrics and decision breakpoints, Colossus unfair advantages
4:30 All: Matters arising, Todo list
5:00 Evening break

Friday, September 7, 2012

Session 2: The Colossus Baselines: This are our lowest risk, enabling, Colossus technologies

9:00 Jeff Kuhn: Baseline optics configurations, more specifics
9:30 David Halliday: Baseline mechanical technologies and systems
10:00 Peter Wangsness: Baseline optics fabrication cost and manufacturing estimates
10:30 Steve Griffin: Baseline control system strategies and estimates
11:00 Stan Truitt: Baseline optics manufacturing costs and strategies
11:30 David Halliday/Group discussion: Risk assessment of baseline strategies
12:00 Lunch break

Session 3: Colossus Technology Innovations, mechanics, optics, production

2:00 Jeff Kuhn: Mirror phasing strategies
2:30 Maude Langlois & Gilberto Moretto: Next generation AO
3:00 Robert Skelton: Feasibility study for a Colossus tensegrity design
3:30 Mauricio de Oliveira & Robert Skelton: Mirror design issues
4:00 Erika Sohn: Deterministic polishing, review and current progress
4:30 Peter Wangsness & Joe Ritter: Innovative Mirror Optics, review and current progress
5:00 Olivier Guyon: High dynamic range coronagraphy, next generation instrumentation prospects for Colossus
5:30 Break

Saturday, September 8, 2012

Session 4: Strategies and Future Actions

9:00 Pete Worden: Colossus - Not NSF, Private?, Major government funding perspectives, NASA, DOD
9:30 Group Discussion: Identify key risk areas, essential modeling efforts, essential technology demonstrations
11:00 David Halliday/Group Discussion: Strategies for promoting Colossus
12:00 Lunch break

2:00 Caisey Harlingten: Colossus corporation organization and structure
3:00 Jeff Kuhn/Group Discussion: Review of Colossus group actions
4:00 Group Discussion: Monograph and publication milestones and plans
5:00 Evening break

6:00 Dinner at Waterton Ranch