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Product: Daily Forecast of Geomagnetic Activity
Issued: 2017 October 28 10:05UTC
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 27.10.2017 at 20:00 UTC was 76 sfu.
The background X-Ray flux is at the class A6 level.
The geomagnetic field was at quiet to unsettled levels on October 27.
No obviously Earth directed CMEs were observed in available LASCO imagery.
The Kp index now is at almost quiet levels with Kp=2.

2. Solar Wind Geomagnetic Activity
Solar Wind speed from ACE: 400 km/s.
Solar Wind speed from STEREO A: 370 km/s.
Solar Wind speed from STEREO B: --- km/s.
The southward component Bz is: 0 nT.

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

4. Coronal Holes
A new coronal hole (CH833) will be in Earth facing position on October 29-30.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on October 29-31.

   Date      Estimated Ap index      Expected geom. storm
2017.10.28           05                        -
2017.10.29           03                        -
2017.10.30           04                        -

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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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