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Product: Daily Forecast of Geomagnetic Activity
Issued: 2026 May 08 03:23UTC
Prepared by the Athens Space Weather Forecasting Center
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I. Solar activity
--Current Status
Solar Flux (10.7cm) measured on 07.05.2026 at 23:00 UTC was 117 sfu.
The background X-Ray flux is at the class B6.8 level.
An M2.6-class solar flare was produced on April 07.
No obviously Earth directed CMEs were observed in available LASCO imagery on May 04-06.
An equatorial coronal hole (CH1363) rotated across the central meridian on May 04-07.

II. Solar Energetic Particle Events
Protons and electrons fluxes are quiet.

III. Interplanetary and Geomagnetic conditions
The solar wind speed measured by ACE satellite reached the max value 435 Km/s on May 08 at 01:00 UT during the last 24 hours.
The solar wind speed from STEREO A was detected 400 Km/s during the last 24 hours.
The vertical component of IMF Bz reached the max value -4 nT on May 07 at 22:10 UT during the last 24 hours.
The geomagnetic field was at quiet to unsettled levels during the last 24 hours.
The Kp index now is at unsettled levels with Kp=3.

IV. 3-day Geomagnetic Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on May 08 due to the effect of recurrent coronal hole high speed stream and at quiet to unsettled levels on May 09-10.

Date	Ap index forecast	Geomagnetic Activity level
08.05.2026	12	Quiet to Active
09.05.2026	10	Quiet to Unsettled
10.05.2026	06	Quiet to Unsettled

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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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