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Product: Daily Forecast of Geomagnetic Activity
Issued: 2016 June 11 05:19UTC
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 10.06.2016 at 20:00 UTC was 85 sfu.
The background X-Ray flux is at the class B1 level.
The geomagnetic field was at quiet levels on June 10.
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: 445 km/s.
Solar Wind speed from STEREO A: 320 km/s.
Solar Wind speed from STEREO B: --- km/s.
The southward component of Bz is: 4 nT south.

3. Solar Energetic Particle Events
Protons and electrons are quiet.

4. Coronal Holes
A recurrent northern hemisphere coronal hole (CH739) rotated across the central meridian on June 8-9. A recurrent trans equatorial coronal hole (CH740) will likely be in an Earth facing position on June 9.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on June 11-13.

    Date         Estimated Geomagnetic Ap index
2016.06.11                    12
2016.06.12                    11
2016.06.13                    10

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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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