The following graphs are produced from data collected from a Unihedron SQM-LU USB Sky Quality Meter once every minute. Graphs are plotted using rrdtool.
Last 24 hours

Last Week

Last Month (max per night)

Last Year (max per night)

Chris Warren’s Rather Neglected Website
The following graphs are produced from data collected from a Unihedron SQM-LU USB Sky Quality Meter once every minute. Graphs are plotted using rrdtool.



