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Product: Daily Forecast of Geomagnetic Activity
Issued: 2017 July 13 09:44UTC
Prepared by the Athens Space Weather Forecasting Center
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1. Solar activity
Solar activity was almost stable during the past 24 hours.
Solar Flux (10.7 cm) measured on 12.07.2017 at 20:00 UTC was 90 sfu.
The background X-Ray flux is at the class B2 level.
The geomagnetic field was at very quiet levels on July 12.
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: 410 km/s.
Solar Wind speed from STEREO A: 460 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
Two small coronal holes, one in the northern hemisphere and one on the southern hemisphere are expected to be in the Earth facing position on July 12-13.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at very quiet levels on July 13 and at almost quiet levels on July 14-15.

   Date      Estimated Ap index      Expected geom. storm
2017.07.13           03                        -
2017.07.14           06                        -
2017.07.15           08                        -

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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
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