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Product: Daily Forecast of Geomagnetic Activity
Issued: 2016 November 24 07:47UTC
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 23.11.2016 at 20:00 UTC was 78 sfu.
The background X-Ray flux is at the class A8 level.
The geomagnetic field was at quiet to active levels on November 23.
No obviously Earth directed CMEs were observed in available LASCO imagery.
The Kp index now is at unsettled to active levels with Kp=3.

2. Solar Wind Geomagnetic Activity
Solar Wind speed from ACE: 500 km/s.
Solar Wind speed from STEREO A: 450 km/s.
Solar Wind speed from STEREO B: --- km/s.
The southward component Bz is: 4 nT south.

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

4. Coronal Holes
A recurrent northern hemisphere coronal hole (CH773) will rotate across the central meridian on November 18-25. 
A recurrent trans equatorial coronal hole (CH774) was Earth facing on November 20-22.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to minor storm levels on November 24-26.

   Date      Estimated Ap index      Expected geom. storm
2016.11.24           16                        G1
2016.11.25           14                        G1
2016.11.26           12                        --

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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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