read_esoskycalc_telluric

popurri.telluricutils.read_esoskycalc_telluric(filin, extra=False)

Read transmision telluric model spectrum generated with ESO SkyCalc.

https://www.eso.org/observing/etc/skycalc/

Notes

FITS file structure:

>>> hdu.info()
Filename: ./esoskycalc/lasilla_w300-1000_R100000_FWHM3.20bin_vac.fits
No.    Name      Ver    Type      Cards   Dimensions   Format
  0  PRIMARY       1 PrimaryHDU      67   ()
  1                1 BinTableHDU    104   120398R x 18C   ['1D', '1D', '1D', '1D', '1D', '1D', '1D', '1D', '1D', '1D', '1D', '1D', '1D', '1D', '1D', '1D', '1D', '1D']

FITS file data from extension 0 header:

COMMENT column lam: Vacuum wavelength in nm COMMENT column flux: sky emission radiance flux in ph/s/m2/micron/arcsec2 COMMENT column trans: sky transmission

COMMENT Individual emission components in ph/s/m2/micron/arcsec2 COMMENT column flux_sml: scattered moonlight COMMENT column flux_ssl: scattered starlight COMMENT column flux_zl: zodiacal light COMMENT column flux_tie: telescope/instrument thermal emission COMMENT column flux_tme: molecular emission lower atmosphere COMMENT column flux_ael: airglow emission Lines COMMENT column flux_arc: airglow/residual emission

COMMENT Individual transmission components COMMENT column trans_o3: ozone uv/optical absorption COMMENT column trans_ma: molecular absorption COMMENT column trans_rs: rayleigh scattering COMMENT column trans_ms: mie scattering