The magnetometer is now installed and running in a test location at the observatory. Both raw data and a continuous plot of data are available online at: http://regulusastro.com/magnetometer/ This URL is likely to change as things become more permanent. At this time, the data correlate well with other magnetometers. We are waiting for a couple of other installations in southern NH to complete before we are able to test thoroughly and make this available for scientific use. Stand by for that! A typical data plot is below for a quiet day. The green stripe along the bottom indicates quiet conditions. As geomagnetic activity increases, the stripe will turn yellow then red when the K index hits 6 or more.