*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2019 February 15 07:39UTC 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 14.02.2019 at 20:00 UTC was 71 sfu. The background X-Ray flux is at the class < A1 level. The geomagnetic field was at very quiet to unsettled levels on February 14. 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: 480 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 A new equatorial coronal hole (CH908) will be in Earth facing position on February 14-15. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at quiet to unsettled levels on February 15 due to the weak effects of the extension of the southern polar CH, and at quiet levels, with a chance for unsettled intervals, on February 16-17. Date Estimated Ap index Expected geom. storm 2019.02.15 05 - 2019.02.16 04 - 2019.02.17 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 ***************************************************************************