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Product: Daily Forecast of Geomagnetic Activity
Issued: 2015 May 16 06:26UTC
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 15.05.2015 at 20:00 UTC was 145 sfu.
The background X-Ray flux is at the class B6 level.
The geomagnetic field was at quiet to unsettled levels on May 14.
No obviously Earth directed CMEs were observed.
The Kp index now is at quiet levels with Kp=1.

2. Solar Wind Geomagnetic Activity
Solar wind speed from ACE: 455 km/s.
Solar wind speed from STEREO A: --- km/s.
Solar wind speed from STEREO B: --- km/s.
The southward component of Bz is: 1.3 nT south.

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

4. Coronal Holes
A recurrent southern hemisphere coronal hole (CH668) will rotate into an Earth facing position on May 14-15.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on May 16 and unsettled to active levels on May 17-18.

    Date         Estimated Geomagnetic Ap index
2015.05.16                      7
2015.05.17                      22
2015.05.18                      18

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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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