*********************************************************************** Product: Daily Forecast of Geomagnetic Activity Issued: 2018 July 01 07:08UTC Prepared by the Athens Space Weather Forecasting Center *********************************************************************** 1. Solar activity Solar activity was almost stable during the past 24 hours. Solar Flux (10.7 cm) measured on 30.06.2018 at 20:00 UTC was 69 sfu. The background X-Ray flux is at the class A1 level. The geomagnetic field was at very quiet levels on June 30. 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: 395 km/s. Solar Wind speed from STEREO A: 340 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 coronal hole (CH872) in the southern hemisphere of the visible solar disk was in Earth facing position on June 28-29. 5. Geophysical Activity Forecast The geomagnetic field is expected to be at quiet to unsettled levels on July 1-2 due to CH872 and at quiet levels on July 3. Date Estimated Ap index Expected geom. storm 2018.07.01 05 - 2018.07.02 06 - 2018.07.03 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 ***************************************************************************