Attendance: Shaul, Hannes, Amy, Al,

Notes by: Karl

• AAS2019 (Shaul)
• TeamX slides (Amy)
• Noise/Bands Figure
• Noise Requirements vs Current Best Estimate (CBE)
  • Proposal: Req = CBE*rt(2)/0.9, independent of frequency
  • rt(2) because “Planck achieved noise within ~20% of CBE” (to be checked)
  • 0.9 because the cost models assume 90% yield
  • first factor is applied on individual detectors, second factor on the array.

AAS2019 (Shaul)

• End of May is special session request deadline. No current Probe special session planned for 2019.
• SH: contacted Asantha Cooray and Jason Glenn suggesting a group special session. These 3 are most related probes. Would give 1/2 hour to discuss each project. Timely since right after reports finished.
  • HH: yes. Good idea. Gets outcome of probe studies out broadly.
  • AT: surprising if NASA doesn't do this for all Probes, but this can be replaced if NASA makes full probe session.
    • SH: separate sessions give more time per study. That would better.
    • AT: Agree, just expect NASA to set one up. But if multiple sessions already set then NASA maybe doesn't bother.
  • SH: Will proceed with this 3 group session plan. Plan of 3 thirty minute talks. 30 min per probe. groups can subdivide. 2 weeks to submit this. Iterating with Asantha and Jason.

TeamX slides (Amy)

• No specific hang-ups. Feelers out to export office on process.
• Process will probably be weeks to release.
• SH: I can flag a subset that is most important to release.
  • AT: ok. that would shorten time to release.

Noise/Bands Figure

• Working to make a visual we have needed. Noise level vs frequency and signal levels. Trying to make something that makes sense.
• This made by Josquin.
• left vertical axis is noise levels. right vertical axis is signals (CMB, dust, synchrotron)
• AK: Not a fan of uK_CMB above ~300 GHz. The upper range makes synchtron, dust, etc look odd.
  • AK: Like everything in Janskies or W/m^s/sr/Hz. Something more widely used in astronomy.
• SH: Understood. This figure works for CMB community, but maybe a second product to use in a more general context.
• HH: Al's point is good. Reach broader groups. This plot says 'PICO is a CMB mission' contrary to the workshop message of PICO as a mm/sub-mm instrument.
• AT: Yes, more general units good.
• SH: Al can send unit suggestion to Josquin. AK: Yes, will do.
• SH: Also planning to color code bands by pixel type.
• AT: Error in band location? SH: yes, iterating with Josquin.

Noise Requirements vs Best Case Estimate (BCE) Current Best Estimate (CBE)

• AT: standard NASA term is current best estimate (CBE)
• starting from r is awkward as foreground limits aren't well understood. so r values don't set a noise requirement.
• we'll adopt this empirical noise requirement and iterate that with science case. Then we see if this pushes us off any cliffs in terms of achievable science.