Eight C-class flares were produced, mainly by Catania sunspot group 45, 44 and 40 (NOAA AR 2157, 2155 and 2152 respectively). The strongest flare was a C6.7 flare, peaking at 6:54 UT on September 5,
originating from Catania group 45. A partial halo CME (apparent width of about 120 degrees), with first measurement at 7:12 UT in SOHO/LASCO C2, was associated with this flare. The CME is travelling East of the Sun-Earth line with a projected plane-of-the-sky speed of 650 km/s and is notexpected to arrive at Earth. We expect flaring activity up to the M-level, in particular from the Catania groups 44 and 45 and the former NOAA AR 2139. The solar proton flux currently remains stable below the SEP event
threshold. We maintain the warning condition for a proton event. The Earth is currently inside a slow (around 370 km/s) solar wind flow with average (around 5 nT) interplanetary magnetic field magnitude. The geomagnetic conditions are quiet and are expected to remain so.
Equipment: Coronado 90 + Imaging Source DMK + LX75
Processing: Photoshop, Avistack 300 frames
Time UT: 16:00
Exposure 1/500 sec.