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Product: Daily Forecast of Geomagnetic Activity
Issued: 2021 June 30 06:36UTC
Prepared by the Athens Space Weather Forecasting Center
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1. Solar activity
Solar activity was increasing during the past 24 hours.
Solar Flux (10.7 cm) measured on 29.06.2021 at 20:00 UTC was 93 sfu.
The background X-Ray flux is at the class B2.1 level.
The geomagnetic field was at very quiet levels on June 29.
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: 335 km/s.
Solar Wind speed from STEREO A: 340 km/s.
Solar Wind speed from STEREO B: --- km/s.
The southward component Bz is: 5 nT south.

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 to unsettled levels on June 30 - July 02 due to CH1018 effects.

   Date      Estimated Ap index      Expected geom. storm
2021.06.30           07                        -
2021.07.01           10                        -
2021.07.02           08                        -

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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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