*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2020 April 02 06:51UTC 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 01.04.2020 at 20:00 UTC was 69 sfu. The background X-Ray flux is at the class A3 level. The geomagnetic field was at quiet to unsettled levels on April 1. 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: 440 km/s. Solar Wind speed from STEREO A: --- km/s. Solar Wind speed from STEREO B: --- km/s. The southward component Bz is: 2 nT south. 3. Solar Energetic Particle Events Protons and electrons are quiet. 4. Coronal Holes A new small equatorial coronal hole (CH957) was in Earth facing position on March 31 - April 1. A high speed stream of solar wind is expected to reach Earth on the first half of April 4. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at almost quiet levels on April 2-3 and at quiet to active levels on April 4 due to CH957 effects. Date Estimated Ap index Expected geom. storm 2020.04.02 05 - 2020.04.03 03 - 2020.04.04 09 - *************************************************************************** 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 ***************************************************************************