Space Weather Report

Athens Cosmic Ray Station
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Product: Daily Forecast of Geomagnetic Activity
Issued: 2026 May 10 06:29UTC
Prepared by the Athens Space Weather Forecasting Center
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I. Solar activity
--Current Status
Solar Flux (10.7cm) measured on 09.05.2026 at 23:00 UTC was 122 sfu.
The background X-Ray flux is at the class B7.2 level.
No obviously Earth directed CMEs were observed in available LASCO imagery on May 06-08.
An equatorial coronal hole (CH1363) rotated across the central meridian on May 04-07.
A coronal hole (CH1364) at northern hemisphere was Earth facing on May 07-09.
A coronal hole (CH1365) at southern hemisphere will rotate across the central meridian on May 09-10.

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 537 Km/s on May 09 at 07:35 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 -3 nT on May 09 at 15:15 UT during the last 24 hours.
The geomagnetic field was at quiet levels during the last 24 hours.
The Kp index now is at quiet levels with Kp=1.

IV. 3-day Geomagnetic Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on May 10-12.

DateAp index forecastGeomagnetic Activity level
10.05.202605Quiet to Unsettled
11.05.202608Quiet to Unsettled
12.05.202610Quiet 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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