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Product: Daily Forecast of Geomagnetic Activity
Issued: 2015 January 08 09:46UTC
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 07.01.2015 at 20:00 UTC was 147 sfu.
The background X-Ray flux is at the class B7 level.
The geomagnetic field has been at quiet to severe storm levels for January 7.
A strong G3-class geomagnetic storm erupted during the early hours of January 7.
The fluctuation in IMF is related to the arrival of a CME originally expected to miss Earth.
No obviously Earth directed CMEs were observed in LASCO imagery for January 7.
The Kp index now is at unsettled levels with Kp=3.

2. Solar Wind Geomagnetic Activity
Solar wind speed from ACE: 450 km/s.
Solar wind speed from STEREO A: --- km/s.
Solar wind speed from STEREO B: --- km/s.
The southward component of Bz is: 5.8 nT south.

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

4. Coronal Holes
None coronal hole is currently in the visible solar disk.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at unsettled to minor storm levels on January 8, quiet to active levels on January 9 and quiet to unsettled levels on January 10.

    Date         Estimated Geomagnetic Ap index
2015.01.08                      22
2015.01.09                      14
2015.01.10                      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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