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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: 3550
- Issue Time: 2025 Oct 17 1122 UTC
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- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3549
- Begin Time: 2025 Oct 01 1325 UTC
- Yesterday Maximum 2MeV Flux: 3769 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: 5111
- Issue Time: 2025 Oct 17 1034 UTC
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- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Oct 17 1034 UTC
- Valid To: 2025 Oct 17 1800 UTC
- Warning Condition: Onset
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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: ALTEF3
- Serial Number: 3549
- Issue Time: 2025 Oct 16 0930 UTC
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- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3548
- Begin Time: 2025 Oct 01 1325 UTC
- Yesterday Maximum 2MeV Flux: 2847 pfu
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- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Space Weather Message Code: SUM10R
- Serial Number: 881
- Issue Time: 2025 Oct 15 1615 UTC
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- SUMMARY: 10cm Radio Burst
- Begin Time: 2025 Oct 15 1521 UTC
- Maximum Time: 2025 Oct 15 1524 UTC
- End Time: 2025 Oct 15 1532 UTC
- Duration: 11 minutes
- Peak Flux: 180 sfu
- Latest Penticton Noon Flux: 154 sfu
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- Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
Space Weather Message Code: ALTEF3
- Serial Number: 3548
- Issue Time: 2025 Oct 15 1041 UTC
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- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3547
- Begin Time: 2025 Oct 01 1325 UTC
- Yesterday Maximum 2MeV Flux: 5134 pfu
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- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.