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Product: Daily Forecast of Geomagnetic Activity
Issued: 2015 January 31 08:22UTC
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 30.01.2015 at 20:00 UTC was 160 sfu.
The background X-Ray flux is at the class B5 level.
The geomagnetic field was at quiet to unsettled levels on January 30.
No obviously Earth directed CMEs were observed in LASCO imagery.
The Kp index now is at almost quiet levels with Kp=2.

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: 2.2 nT south.

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

4. Coronal Holes
An extension of southern polar coronal hole could be geoeffective. A stream of solar wind from this coronal hole is expected to reach Earth on January 31 - February 1.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on January 31 and quiet to active levels of February 1-2.

    Date         Estimated Geomagnetic Ap index
2015.01.31                      6
2015.02.01                      13
2015.02.02                      11

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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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