Observatory Location - Haslington, Crewe UK
Grid ref: SJ733556
Lat: 53:05:51N (53.09746)
Lon: 2:23:58W (-2.39943)
IARU: IO83TC23
Summary:
This B8 class flare is related to Sunspot 1007. No recorded changes to the earths magnetic field can be attributed to this event.
A 'B' class flare is a weak solar flare with an X-Ray flux of just less than 10^-6 w/m^2.
Method:
Indirect observation of the flare due to a SID (Sudden Ionospheric Disturbance) whilst monitoring a remote VLF transmitter. Changes in the ionospheric 'D' layer will cause either an enhancement or weakening of the received signal.
Equipment:
UKRAA VLF Receiver, 21.4kHz
Starbase Software reading RSP datafiles
Trace overlaid with GOES X-Ray Data.
Solar Image credit SOHO/MDI