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Having SatCom problems?

A burst of radiation on the sun's surface may trigger a geomagnetic storm, which can disrupt satellite communications.
In order to prevent unnecessary maintenance on satellite communications systems Air Sat One has provided a feed of Geophysical Events from NOAA's Space Weather Prediction Center. Check here to see if solar activity could be a cause of satellite communications problems.
Space Weather Message Code: ALTEF3
- Serial Number: 3673
- Issue Time: 2026 Apr 12 1317 UTC
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- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3672
- Begin Time: 2026 Apr 03 0920 UTC
- Yesterday Maximum 2MeV Flux: 1082 pfu
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- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Space Weather Message Code: WARK04
- Serial Number: 5317
- Issue Time: 2026 Apr 12 0945 UTC
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- CANCEL WARNING: Geomagnetic K-index of 4 expected
- Cancel Serial Number: 5316
- Original Issue Time: 2026 Apr 10 0143 UTC
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- Comment: Active conditions (Kp=4) are no longer expected to occur.
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- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
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- Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Space Weather Message Code: WARK04
- Serial Number: 5316
- Issue Time: 2026 Apr 11 1756 UTC
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- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5315
- Valid From: 2026 Apr 10 0145 UTC
- Now Valid Until: 2026 Apr 12 1500 UTC
- Warning Condition: Persistence
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- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
-
- Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Space Weather Message Code: ALTEF3
- Serial Number: 3672
- Issue Time: 2026 Apr 11 1306 UTC
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- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3671
- Begin Time: 2026 Apr 03 0920 UTC
- Yesterday Maximum 2MeV Flux: 1714 pfu
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- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.