A SkyCalc wrapper for Interactive Python

Welcome to the SkyCalc-iPy Documentation!

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A SkyCalc wrapper for Interactive Python#

SkyCalc-iPy (“SkyCalc for Interactive PYthon”) is a package for accessing atmospheric emission and transmission data generated by ESO’s SkyCalc tool interactively with Python.

This package is based on the command line tool by ESO for accessing spectra on the ESO SkyCalc server. For references to SkyCalc see ESO SkyCalc, Noll et al. (2012), and Jones et al. (2013).

Contents:

Installation#

Skycalc_ipy is available on PyPi:

pip install skycalc_ipy

This is still the very first version of SkyCalc iPy, so please open an issue on GithHub if you find any bugs, or if would like to see different functionality included.

AstarVienna/skycalc_ipy#issues

Dependencies#

The following packages are required for normal operation:

  • httpx

  • pyyaml

  • numpy

  • astropy

  • astar-utils

The following packages are optional:

  • matplotlib

  • synphot

Changelog#

Please see AstarVienna/skycalc_ipy for the changelog from version 0.1.4 onwards. For pre-v0.1.4 changes see below.

Changed in version 0.1.3: Updated default values for wmax, wgrid_mode, wres

SkyCalc-ipy now uses a logarithmic wavelength binning with R=1000 over the fully available SkyCalc wavelength range of [0.3, 30] um

  • wmax: –> 30000 # [nm]

  • wgrid_mode: –> fixed_spectral_resolution

  • wres: –> 1000 [wres = wave/dwave]

Changed in version 0.1.3: No longer saves a temporary FITS file to disk.

SkyCalc now uses astropy to download the fits file from the SkyCalc server. The HDUList is now stored internally in <SkyCalc>.last_skycalc_response.

Changed in version 0.1.2: Upgrade fixes PyYaml warning/error for PyYaml >=6.0

SkyCalc-ipy v0.1.1 is only compatible with versions of PyYaml <=5.4. PyYaml v6+ removed backwards compatibility by forcing the user to pass a Loader object when reading YAML files. SkyCalc-ipy v0.1.0 and v0.1.1 does not do this.

Contents