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20180629_full_focal_plane_noise_sims

PICO Sparse focal plane simulation of noise

Software versions

  • TOAST: `119db6ae8204230aafbaf0cb1d46d84f8d36cbf3`
  • `pico-simulations`: Tag `201806_sparse_focal_plane_noise`

Configuration

  • All 21 bands
  • pixels/wafer reduced to 7 for all bands
  • sampling frequency reduced all to 63 Hz, unless it was already lower
  • hitmaps and noise covariance matrices corrected to be representative of the full focal plane and nominal sampling frequency
  • baseline 1/f and white noise
  • 1 year
  • output units of all products are `microKelvin_CMB`

Results location

Available maps:

  • IQU maps binned and destriped with Madam
  • White noise covariance matrices `wcov.fits`, white noise levels were reduced in order to be representative of the total focalplane
  • Original hitmaps from Madam (less detectors, lower sampling rate) and corrected hitmaps representative of nominal focal plane

NERSC

`/global/project/projectdirs/pico/noise/sparse_focalplane_1year`

Validation

Consistency check of hitmaps, noise covariance matrices, NET and TT spectra of the noise maps:

Comparison of a 30 days simulation of the sparse and the full focalplane for band 9:

There is a difference in the dipoles, but the level is tiny. I checked the dipole in map domain, the sparse map has 14e-3 muK, while the full focalplane map as 7e-3 muK. I checked also the 1 year simulation and that has 6e-3 muK.

20180629_full_focal_plane_noise_sims.txt · Last modified: 2018/07/11 17:55 by zonca