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Product: Daily Forecast of Geomagnetic Activity
Issued: 2021 July 03 07:04UTC
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 02.07.2021 at 20:00 UTC was 95 sfu.
The background X-Ray flux is at the class B3.9 level.
The geomagnetic field was at very quiet levels on July 2.
A faint CME observed on June 29 at 05:00UT approx. There is a possibility this CME reach Earth according EAM predictions between Jul 02, 19:00UT and Jul 03, 18:00UT.
No obviously Earth directed CMEs were observed in available LASCO imagery on July 1-3. 
The Kp index now is at quiet levels with Kp=1.

2. Solar Wind Geomagnetic Activity
Solar Wind speed from ACE: 480 km/s.
Solar Wind speed from STEREO A: 400 km/s.
Solar Wind speed from STEREO B: --- km/s.
The southward component Bz is: 1 nT south.

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

4. Coronal Holes
A new coronal hole (CH1019) was in Earth facing position on July 2.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels, with a chance for active intervals, on July 03-04 due to combined CH1018 and CME arrival effects and at almost quiet levels on July 05.

   Date      Estimated Ap index      Expected geom. storm
2021.07.03           09                        -
2021.07.04           11                        -
2021.07.05           06                        -

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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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