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Product: Daily Forecast of Geomagnetic Activity
Issued: 2021 June 07 04:27UTC
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 06.06.2021 at 20:00 UTC was 75 sfu.
The background X-Ray flux is at the class A3.0 level.
The geomagnetic field was at quiet levels on June 6.
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: 370 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
A new coronal hole (CH1014) on the southern hemisphere of the visible solar disk was in Earth facing position on June 4-5.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on June 7-8 due to CH1014 effects and at almost quiet levels on June 9.

   Date      Estimated Ap index      Expected geom. storm
2021.06.07           11                        -
2021.06.08           09                        -
2021.06.09           05                        -

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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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