27 April ~1745 UTC and 28 April ~10:20 UTC: interference caused by excavator working nearby
Click for yesterday's magnetometer graph (opens in a new window)
The weather observations are made with a Davis Vantage Pro 2 system. The Webcam is a Logitech C270.
All times are in UTC (add 1h for British Summer Time). The software used is Weather Display v10.37.
magnetometer is designed to give advance warning of possible auroral activity.
Disturbances of K = 5 or more on the graph signal
there may be such activity. More information about viewing the aurora can be
found here. More details about the magnetometer are here.
The system has been modified to allow use of a third fluxgate sensor, allowing measurement of both E-W, N-S and vertical components.
An experimental Sudden Ionospheric Disturbance (SID) receiver, intended to record changes in the ionosphere caused by X-ray flares on the Sun, is available here.
These web-pages are always under development and will be subject to changes, or be taken off-line from time to time. More details of the instruments can be found here.
Comments or suggestions for changes are welcome. Please send them to me at : email@example.com