*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2018 October 01 06:07UTC Prepared by the Athens Space Weather Forecasting Center *********************************************************************** 1. Solar activity Solar activity was almost stable during the past 24 hours. Solar Flux (10.7 cm) measured on 30.09.2018 at 20:00 UTC was 68 sfu. The background X-Ray flux is at the class A2 level. The geomagnetic field was at very quiet to unsettled levels on September 30. No obviously Earth directed CMEs were observed in available LASCO imagery. The Kp index now is at almost quiet levels with Kp=2. 2. Solar Wind Geomagnetic Activity Solar Wind speed from ACE: 390 km/s. Solar Wind speed from STEREO A: --- km/s. Solar Wind speed from STEREO B: --- km/s. The southward component Bz is: 0 nT. 3. Solar Energetic Particle Events Protons and electrons are quiet. 4. Coronal Holes A new coronal hole (CH888) will be in Earth facing position on September 29-30. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at quiet to unsettled levels, with a chance for active intervals, on October 1-2 and at quiet levels on October 3. Date Estimated Ap index Expected geom. storm 2018.10.01 05 - 2018.10.02 04 - 2018.10.03 03 - *************************************************************************** Athens Space Weather Forecasting Center Physics Department, National & Kapodistrian University of Athens Athens Neutron Monitor Station A.NE.MO.S Tel.: +30 210 727 6901 email: spaceweather@phys.uoa.gr URL: http://spaceweather.phys.uoa.gr ***************************************************************************