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PSF Parameters #15

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JulienNGirard opened this issue Feb 10, 2021 · 4 comments
Open

PSF Parameters #15

JulienNGirard opened this issue Feb 10, 2021 · 4 comments

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@JulienNGirard
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We have to select ranges of source RA & DEC that could fit observations of length 1 2 4 8

  • constraint: MeerKAT fixed in SA
  • selection in delta vs Delta T
  • selection of "appropriate" RA (first pick a fixed date, later, deduced correct RA that fit delta & DT)
  • weighting of circumpolar sources vs near horizon sources
@fadinammour
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fadinammour commented Mar 12, 2021

To do:

  • solve PSF generation bug (gridder).
  • sample visible sky to generate PSF diversity (in a realistic way)
  • generate different samples for a delta T = 2h. + generator ( (N, obslength) ===> N sets of (dec,HA_start)...)
  • compute a constant standard noise deviation (Julien: find a typical sigma for MeerKat antennas). ==> fake for now
  • put initialization of PSF inside makePSF
  • finish the end-to-end radio galaxy simulation notebook.

@JulienNGirard
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JulienNGirard commented Mar 18, 2021

about task N°3:

  • 1) choose obs length (e.g. 2h)
  • 2) trim distribution of elevation vs. max length D= [-90,decl_lim]
  • 3) draw uniform distribution of source declination in D
  • 4) for each source of declination d, retrieve HAmin HAmax T=[HAmin,HAmax]
  • 5) draw uniform start HA_start in [HAmin,HAmax-Duration]

@JulienNGirard
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filling task N°3 subtasks

@JulienNGirard
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done

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