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Product: Daily Forecast of Geomagnetic Activity
Issued: 2016 May 01 06:42UTC
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 30.04.2016 at 20:00 UTC was 94 sfu.
The background X-Ray flux is at the class B2 level.
The geomagnetic field was at quiet to unsettled levels on April 30.
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: 360 km/s.
Solar Wind speed from STEREO A: 450 km/s.
Solar Wind speed from STEREO B: --- km/s.
The southward component of Bz is: 1 nT north.

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

4. Coronal Holes
A recurrent northern hemisphere coronal hole (CH730) rotated across the central meridian on April 27-28. A poorly defined trans equatorial coronal hole (CH732) will be in an Earth facing position on May 3.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on May 1-3.

    Date         Estimated Geomagnetic Ap index
2016.05.01                    12
2016.05.02                    9
2016.05.03                    7

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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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