Attendance: Amy, Jeff, Rafael, Al, Clem, Lloyd, Jamie, Charles Notes by Amy

Schedule:

• What other milestones need to be included in the schedule
• Review timelines for TeamX sessions and decision point about Imager-only vs. Imager+Spectrometer.
• What questions need to be investigated/answered on the way to this decision

Generally felt the science workshops are very important and should be included and planned. Interest in workshops on CMB science + inflation, and foregrounds + systematics. Key question here is who wants to host a workshop (general silence). Since we only have resources for one workshop, we could go out to the community to find interested hosts. That worked very well in 2009, resulted in several. Foreground workshop should be held earlier if possible since it has a more direct linkage to mission design.

Decided to make an updated schedule, including this discussion and Amy's workforce and list of developments for the mission study. We will need WF to develop the mission for the team-X study. Felt that the instrument sessions need a motivating question, could be the combined mission for the first one. Amy+Jamie present an updated draft next week.

(Amy) familiar with imager approach, but need more information on spectrometer in order to judge effort for combined architecture and going from there to team-X study if included.

Al says he will present slides on design options for the spectrometer in 2 weeks.

Update from Raphael:

• what's happening with the theory group?
• what is the plan of work?
• what/when are the milestones?

Have compiled a list of volunteers to look at specific scientific questions. However have not had an opportunity to do much work. Plan of work will require interaction with the mission study. To start, make a list of topics with people in charge, what studies you want to accomplish, and the amount of work and duration. Warning: many of the discussions about r have fuzzy boundaries, but maybe there are tests available at low ell. (Lloyd) there is a potential extragalactic science with the high frequency channels we should investigate. Let's have that list of science topics and discussion in 2 weeks.

Action Items:

1. Raphael will organize a group of people who will work on a particular target for r
2. Lloyd will coordinate the data challenge

so far this has become a list of names, will come up with a draft plan for discussion on June 14

1. Shaul to work on band and noise definitions
2. Lloyd to try to find someone to work on extragalactic science case (including complementarity with ground)
3. Julian will set up a probe project space at NERSC.
4. Al will organize a group that will assess the motivation for a super-pixie or develop the case for compspec (complementary spectrometer)

in progress, will result in a presentation in 2 weeks