*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2020 February 12 05:58UTC Prepared by the Athens Space Weather Forecasting Center *********************************************************************** 1. Solar activity Solar activity was increasing during the past 24 hours. Solar Flux (10.7 cm) measured on 11.02.2020 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 11. 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: 370 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 small coronal hole (CH951) on the northern hemisphere of solar disk was in Earth facing position on Feb. 7-8. A minor impact it was noticed on the first hours of February 11 possible associated with CH951. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at quiet levels, with a chance for unsettled intervals, on February 12 due to CH951 effects and at quiet levels on February 13-14. Date Estimated Ap index Expected geom. storm 2020.02.12 04 - 2020.02.13 03 - 2020.02.14 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 ***************************************************************************