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Product: Daily Forecast of Geomagnetic Activity
Issued: 2026 January 27 06:56UTC
Prepared by the Athens Space Weather Forecasting Center
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I. Solar activity
--Current Status
Solar Flux (10.7cm) measured on 26.01.2026 at 23:00 UTC was 153 sfu.
The background X-Ray flux is at the class C1.1 level.
No obviously Earth directed CMEs were observed in available LASCO imagery on January 23-25.
An equatorial coronal hole (CH1341) rotated across the central meridian on January 24-25.

II. Solar Energetic Particle Events
Protons fluxes are quiet.
The greater than 2 MeV electron flux at geosynchronous orbit maintained at minor storm level on January 26.

III. Interplanetary and Geomagnetic conditions
The solar wind speed measured by ACE satellite reached the max value 572 Km/s on January 26 at 10:30 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 -6 nT on January 26 at 12:35 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 unsettled levels on January 27, at quiet to minor storm (G1) levels on January 28 due to the effects of the recurrent coronal hole high speed stream and at quiet to active levels on January 29.

Date	Ap index forecast	Geomagnetic Activity level	
27.01.2026	08	Quiet to Unsettled	
28.01.2026	22	Quiet to Unsettled	
29.01.2026	15	Quiet to Active	

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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
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