BiSON - Atmospheric extinction coefficients in the Ic band - 1984 to 2016

Abstract

The datasets available here are associated with Astronomical Journal article: Atmospheric extinction coefficients in the Ic band for several major international observatories: Results from the BiSON telescopes, 1984 to 2016.

The dataset consists of six files, one for each BiSON site:

mtwilson_extinction.dat
campanas_extinction.dat
izana_extinction.dat
sutherland_extinction.dat
carnarvon_extinction.dat
narrabri_extinction.dat

Each file consists of nine columns which are defined as:

[0] timestamp
[1] transmission morning extinction coefficient
[2] transmission morning fit uncertainty
[3] transmission afternoon extinction coefficient
[4] transmission afternoon fit uncertainty
[5] scattering morning extinction coefficient
[6] scattering morning fit uncertainty
[7] scattering afternoon extinction coefficient
[8] scattering afternoon fit uncertainty

All values have units of magnitudes per airmass. Where data are unavailable, values are replaced with NaN.

Two Python scripts produce the extinction figures and tables from the paper based on the content of these data files:

% ./plot_all_data
% ./getstats

Any questions should be directed to the article authors.