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systematicswg:telecons:2018-05-14:start [2018/05/14 11:35] – bcrillsystematicswg:telecons:2018-05-14:start [2018/05/14 15:17] (current) – kyoung
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             * how to best use parameters: stop Maurizio's work until final parameters are in place, or re-run later?  Maurizio would like to keep pushing ahead.  Once bugs are fixed, compute time is pretty small.  Can be re-run when final parameters are settled.             * how to best use parameters: stop Maurizio's work until final parameters are in place, or re-run later?  Maurizio would like to keep pushing ahead.  Once bugs are fixed, compute time is pretty small.  Can be re-run when final parameters are settled.
             * What is the time scale?  Sensitivities are settled.  Scan angle might change just a little.  Biggest remaining uncertainty: different between Current Best Estimate noise and Requirement noise.  aiming for late may or possibly into June.             * What is the time scale?  Sensitivities are settled.  Scan angle might change just a little.  Biggest remaining uncertainty: different between Current Best Estimate noise and Requirement noise.  aiming for late may or possibly into June.
 +        * Shaul: how much can this infrastructure be adapted to other simulation purposes?
 +              * Easily!  toast infrastructure is set up 
 +  * Karl: GRASP sims status.
 +        * main beam masked beam created with center 1 x 1 degree pixel zeroed.  This is a Far-Sidelobe-only beam.
 +          * Plots: {{:systematicswg:telecons:2018-05-14:polxy_corrected_cuts_phi_0.png?direct&100|0 deg phi}}{{:systematicswg:telecons:2018-05-14:polxy_corrected_cuts_phi_90.png?direct&100|90 deg phi}}
 +          * center pixel = 0, no other effects
 +        * Andrea also asked for simple cases to test code: Karl made a 10 degree circular Gaussian and a 1 x 10 elliptical Gaussian
 +          * Plots of these test beams, just for sanity.
 +          * {{:systematicswg:telecons:2018-05-14:10deg_xfeed.png?direct&100 |10 deg gaussian}}
 +          * {{:systematicswg:telecons:2018-05-14:10x1deg_xfeed.png?direct&100|10x1 deg elliptical}}
 +        * Karl to make a quick check to verify the main lobe actually is removed. Karl will be gone after next week for an internship will be in less contact
 +  * Kris: precession 
 +        * More to come on Wednesday: a preview is as follows:
 +        * 10 hour precession period: {{:systematicswg:telecons:2018-05-14:orth_nobs_tprec10hrs_190_days.png?25|}} 
 +        * 48 hour precession period: {{:systematicswg:telecons:2018-05-14:orth_nobs_tprec48hrs_190_days.png?25|}}
 +        * 48 hour precession leads to coherent structures, lines of high coverage. 
 +        * Kris suggests a fiducial toast simulation with 4-detector set to show full I,Q,U reconstruction in the presence, with CMB+dipole first.  Extract power spectra.    
 +              * this demonstrates PICO's basic ability to extract polarization with PICO scan, 1/f, etc.
 +              * Andrea would be the one to run this.  Andrea reports that the easiest thing to do is to set a 4-detector single horn.  We agree that we should quickly run this, then revisit later if we want to do 2 horns, scaled noise, etc.
systematicswg/telecons/2018-05-14/start.1526315728.txt.gz · Last modified: 2018/05/14 11:35 by bcrill

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