*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2020 February 07 06:36UTC 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 06.02.2020 at 20:00 UTC was 71 sfu. The background X-Ray flux is at the class A1 level. The geomagnetic field was at quiet to active levels on February 6. No obviously Earth directed CMEs were observed in available LASCO imagery. The Kp index now is at unsettled levels with Kp=3. 2. Solar Wind Geomagnetic Activity Solar Wind speed from ACE: 620 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 An extension (CH950) of southern polar coronal hole was in Earth facing position on February 3-5. A high speed stream (with v~600km/s) reached Earth on Feb. 6. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at quiet to unsettled levels, with a chance for active intervals, on February 7 due to effects from CH950 and at almost quiet levels on February 8-9. Date Estimated Ap index Expected geom. storm 2020.02.07 12 - 2020.02.08 07 - 2020.02.09 04 - *************************************************************************** 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 ***************************************************************************