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Product: Daily Forecast of Geomagnetic Activity
Issued: 2021 July 09 06:44UTC
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 08.07.2021 at 20:00 UTC was 73 sfu.
The background X-Ray flux is at the class A9.1 level.
The geomagnetic field was at very quiet levels on July 8.
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: 330 km/s.
Solar Wind speed from STEREO A: --- 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 and small coronal hole (CH1020) on the northern hemisphere of the visible solar disk will be in Earth facing position on July 6. A new coronal hole (CH1021) on the southern hemisphere of the visible solar diskwill be in Earth facing position on July 8-9.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on July 9-11 due to CHs effects.

   Date      Estimated Ap index      Expected geom. storm
2021.07.09           04                        -
2021.07.10           05                        -
2021.07.11           09                        -

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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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