*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2020 June 04 06:50UTC Prepared by the Athens Space Weather Forecasting Center *********************************************************************** 1. Solar activity Solar activity was decreasing stable during the past 24 hours. Solar Flux (10.7 cm) measured on 03.06.2020 at 20:00 UTC was 70 sfu. The background X-Ray flux is at the class A2.4 level. The geomagnetic field was at very quiet levels on June 3. 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: 315 km/s. Solar Wind speed from STEREO A: 450 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 No obvious coronal holes are currently in the visible solar disk. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at very quiet levels on June 4-5 and at quiet to unsettled levels on June 6. Date Estimated Ap index Expected geom. storm 2020.06.04 02 - 2020.06.05 02 - 2020.06.06 05 - *************************************************************************** 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 ***************************************************************************