Welcome to pyetc documentation!

pyetc is a python based exposure time calculator developed for the WST project

Contents:

• Installation
• Initialise ETC module
• Instruments and channels
• Spectral resolution
• Throughput
• Surface Brightness
  • Continuum source
  • Emission line source
  • Retrieve flux for a given S/N
• Point Source
  • Image Quality
  • Continuum source
  • Emission line source
  • Retrieve flux for a given S/N
• Resolved source
  • Continuum source
  • Emission line source
• Changelog
  • 0.30 (2/12/2023)
  • 0.22 (14/10/2023)
  • 0.21 (18/02/2023)
  • 0.2 (16/02/2023)
  • 0.1 (25/01/2023)

API

pyetc.etc Module

Functions

asymgauss(ftot, l0, sigma, skew, wave)	compute asymetric gaussian
compute_sky(lbda1, lbda2, dlbda, lsf, moon)	compute Paranal sky model from ESO skycalc
fwhm_asymgauss(lbda, flux)	compute the FWHM of an asymmetric gaussian
get_data(obj, chan, name, refdir)	retreive instrument data from the associated setup files
get_seeing_fwhm(seeing, airmass, wave, diam, ...)	compute FWHM for the Paranal ESO ETC model
moffat(samp, fwhm, beta[, ell, kfwhm, ...])	compute a 2D Moffat image
peakwave_asymgauss(lpeak, sigma, skew[, dl])	compute the asymetric gaussian wavelength paramater to get the given peak wavelength
show_noise(r, ax[, legend, title])	plot the noise characteristics from the result dictionary
sigma2vdisp(sigma, l0)	compute sigma in A from velocity dispersion in km/s
update_skytables(logger, obj, name, chan, ...)	update setup sky files for a change in setup parameters
vdisp2sigma(vdisp, l0)	compute sigma in A from velocity dispersion in km/s

Classes

ETC([log])

Generic class for Exposure Time Computation (ETC)

Class Inheritance Diagram

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