*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2018 June 15 05:07UTC 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 14.06.2018 at 20:00 UTC was 72 sfu. The background X-Ray flux is at the class ‘3 level. The geomagnetic field was at quiet levels on June 13. No obviously Earth directed CMEs were observed in available LASCO imagery. The Kp index now is at quiet levels with Kp=1. 2. Solar Wind Geomagnetic Activity Solar Wind speed from ACE: 310 km/s. Solar Wind speed from STEREO A: 310 km/s. Solar Wind speed from STEREO B: --- km/s. The southward component Bz is: 1 nT north. 3. Solar Energetic Particle Events Protons and electrons are quiet. 4. Coronal Holes A new coronal hole (CH869) in the northern hemisphere of the visible solar disk will be in Earth facing position on June 14-16. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at very quiet levels on June 15-17. Date Estimated Ap index Expected geom. storm 2018.06.15 03 - 2018.06.16 02 - 2018.06.17 02 - *************************************************************************** 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 ***************************************************************************