====== Telecon 20170828 ======

__Agenda:__ 
  * {{::probeimager_whereweare_20170828.pdf|Where we are (Shaul)}}
  * {{::scan_bore73_prec22.pdf|Scan Angles (Kris)}}
  * Noise model {{::pico_fdm_noise_predictions_20170828.pdf|Noise model status}}(Karl)


__Notes:__
 Attending: Shaul, Amy, Brian, Kris, Julian, Karl, Qi, Brad, Roger, Jacques, Bill

 pre meeting comments:
   * Roger working on getting FDM power consumption and 1/f characteristics from Matt Dobbs.

 Current status (Shaul)
   * flow chart indicates various areas of work and 
   * Preliminary, to see where we are and illustrate how different parts interact

 Noise Model (Karl)
   * White noise level only.
   * NEPs and NET have been calculated
   * Readout was from EBEX, more information of readout system is needed for estimation of noise in near future
   * Photon correlation noise = 1
      - probably needs to be investigated
      - different for space and ground-based missions
   * Thermal power law index n: 2 is more proper
   * Zodiacal light might be included
      - negligible in terms of loading from simulation (Jacques)
      - galaxy also negligible in terms of loading
   * 10 ms bolo time constant does NOT matter here
   * P_readout > P_photon at lowest bands near 20 GHz
   * Next steps: 
     - go from single detector —> multi-chroic —> full focal plane
     - Roger to use his model to calculate noise and cross check on 1 week timescale
   * 1 / f needs to be modeled as well
     - Roger will lead collection of information, check in at 2 weeks.
     - Julian has machinery to simulate given a noise spectrum.
   * correlated noise will need more inputs
      - data from Plank for satellite related issues
      - data from SPT, BICEP, etc for crosstalk numbers.
   * for TDM capacitance of wiring is critical to limit noise
      - what are key points for FDM?

 Scanning (Kris)
   * basic model of single pixel with completely smooth scan.
   * ability to reconstruct polarization maps looks reasonable, but Kris not convinced
      - more complete models with multiple detectors, and a plan for how to combine them is needed.
      - some of the has been done for CORE and LightBIRD.
      - Kris to look into these papers
      - Jacques to ask European community what they can contribute and what time availability they have. ETA 1 week.
      - Kris-Jacques will meet Sept. 18-19 to discuss face-to-face.