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Product: Daily Forecast of Geomagnetic Activity
Issued: 2019 January 20 09:34UTC
Prepared by the Athens Space Weather Forecasting Center
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1. Solar activity
Solar activity was decreasing stable during the past 24 hours.
Solar Flux (10.7 cm) measured on 19.01.2019 at 20:00 UTC was 70 sfu.
The background X-Ray flux is at the class A1 level.
The geomagnetic field was at very quiet to unsettled levels on January 19.
No obviously Earth directed CMEs were observed in available LASCO imagery.
The Kp index now is at quiet levels with Kp=1.

2. Solar Wind Geomagnetic Activity
Solar Wind speed from ACE: 350 km/s.
Solar Wind speed from STEREO A: 460 km/s.
Solar Wind speed from STEREO B: --- km/s.
The southward component Bz is: 2 nT south.

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

4. Coronal Holes
A new equatorial coronal hole (CH904) will be in Earth facing position on January 19-21.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at very quiet levels on January 20-22.

   Date      Estimated Ap index      Expected geom. storm
2019.01.20           03                        -
2019.01.21           02                        -
2019.01.22           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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