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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: ALTTP2
- Serial Number: 1507
- Issue Time: 2026 Jun 21 1951 UTC
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- ALERT: Type II Radio Emission
- Begin Time: 2026 Jun 21 1932 UTC
- Estimate Velocity: 380 km/s
- Comment:
Space Weather Message Code: SUMXM5
- Serial Number: 319
- Issue Time: 2026 Jun 21 1948 UTC
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- SUMMARY: X-ray Event exceeded M5
- Begin Time: 2026 Jun 21 1917 UTC
- Maximum Time: 2026 Jun 21 1929 UTC
- End Time: 2026 Jun 22 1935 UTC
- Xray Class: M6.8
- Optical Class: 2b
- Location: S07E55
- Noaa Scale: R2 - Moderate
- Comment:
- NOAA Scale: R2 - Moderate
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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 centered primarily on sub-solar point on the sunlit side of Earth.
- Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
Space Weather Message Code: ALTXMF
- Serial Number: 532
- Issue Time: 2026 Jun 21 1930 UTC
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- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2026 Jun 21 1927 UTC
- Noaa Scale: R2 - Moderate
- Comment:
- NOAA Scale: R2 - Moderate
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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 centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
Space Weather Message Code: ALTTP2
- Serial Number: 1505
- Issue Time: 2026 Jun 20 0406 UTC
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- CANCEL ALERT: Type II Radio Emission
- Cancel Serial Number: 1504
- Original Issue Time: 2026 Jun 20 0403 UTC
- Cancelling duplicate Type-II Alert
- Cancelling duplicate Type-II Alert
Space Weather Message Code: ALTTP2
- Serial Number: 1506
- Issue Time: 2026 Jun 20 0407 UTC
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- ALERT: Type II Radio Emission
- Begin Time: 2026 Jun 20 0407 UTC
- Estimate Velocity: 300 km/s
- Comment:
Space Weather Message Code: ALTTP2
- Serial Number: 1504
- Issue Time: 2026 Jun 20 0403 UTC
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- ALERT: Type II Radio Emission
- Begin Time: 2026 Jun 20 0300 UTC
- Estimate Velocity: 300 km/s
- Comment: