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Product: Daily Forecast of Geomagnetic Activity
Issued: 2018 February 04 09:35UTC
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 03.02.2018 at 20:00 UTC was 69 sfu.
The background X-Ray flux is at the class A3 level.
The geomagnetic field was at very quiet levels on February 03.
No obviously Earth directed CMEs were observed in available LASCO imagery.
The Kp index now is at very quiet levels with Kp=0.

2. Solar Wind Geomagnetic Activity
Solar Wind speed from ACE: 330 km/s.
Solar Wind speed from STEREO A: 440 km/s.
Solar Wind speed from STEREO B: --- km/s.
The southward component Bz is: 1 nT north.

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

4. Coronal Holes
No obvious coronal holes are currently in the visible solar disk.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on February 4-6, with a chance for unsettled levels on February 4-5 due to the effects from the northern polar coronal hole.

   Date      Estimated Ap index      Expected geom. storm
2018.02.04           03                        -
2018.02.05           03                        -
2018.02.06           02                        -

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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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