*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2019 January 02 09:29UTC 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 01.01.2019 at 20:00 UTC was 72 sfu. The background X-Ray flux is at the class A2 level. The geomagnetic field was at very quiet to unsettled levels on January 1. No obviously Earth directed CMEs were observed in available LASCO imagery. The Kp index now is at very quiet levels with Kp=0. 2. Solar Wind Geomagnetic Activity Solar Wind speed from ACE: 365 km/s. Solar Wind speed from STEREO A: 370 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 equatorial coronal hole (CH902) will be in Earth facing position on December 31 - January 2. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at very quiet levels on January 2-3 and at very quiet to unsettled levels on January 4 due to CH902 effects. Date Estimated Ap index Expected geom. storm 2019.01.02 01 - 2019.01.03 02 - 2019.01.04 06 - *************************************************************************** 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 ***************************************************************************