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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.
Geophysical Alert Message Issued: Mar 31st, 2025 10:22:31 pm
Space Weather Message Code: ALTPX2
- Serial Number: 77
- Issue Time: 2025 Apr 01 0222 UTC
- ALERT: Proton Event 10MeV Integral Flux exceeded 100pfu
- Begin Time: 2025 Apr 01 0205 UTC
- NOAA Scale: S2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Radiation - Passengers and crew in high latitude, high altitude flights may experience small, increased radiation exposures.
- Spacecraft - Infrequent single-event upsets to satellites are possible.
- Radio - Small effects on polar HF (high frequency) propagation resulting in fades at lower frequencies.
Geophysical Alert Message Issued: Mar 31st, 2025 7:54:02 pm
Space Weather Message Code: WARPX1
- Serial Number: 598
- Issue Time: 2025 Mar 31 2354 UTC
- EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
- Extension to Serial Number: 597
- Valid From: 2025 Mar 31 1057 UTC
- Now Valid Until: 2025 Apr 01 2359 UTC
- Warning Condition: Persistence
- Predicted NOAA Scale: S1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.
Geophysical Alert Message Issued: Mar 31st, 2025 7:21:34 am
Space Weather Message Code: ALTPX1
- Serial Number: 357
- Issue Time: 2025 Mar 31 1121 UTC
- ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
- Begin Time: 2025 Mar 31 1105 UTC
- NOAA Scale: S1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.
Geophysical Alert Message Issued: Mar 31st, 2025 6:58:20 am
Space Weather Message Code: WARPX1
- Serial Number: 597
- Issue Time: 2025 Mar 31 1058 UTC
- WARNING: Proton 10MeV Integral Flux above 10pfu expected
- Valid From: 2025 Mar 31 1057 UTC
- Valid To: 2025 Mar 31 2359 UTC
- Warning Condition: Onset
- Predicted NOAA Scale: S1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.
Geophysical Alert Message Issued: Mar 31st, 2025 1:02:41 am
Space Weather Message Code: ALTEF3
- Serial Number: 3442
- Issue Time: 2025 Mar 31 0502 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3441
- Begin Time: 2025 Mar 28 1410 UTC
- Yesterday Maximum 2MeV Flux: 2772 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Mar 30th, 2025 1:01:50 am
Space Weather Message Code: ALTEF3
- Serial Number: 3441
- Issue Time: 2025 Mar 30 0501 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3440
- Begin Time: 2025 Mar 28 1410 UTC
- Yesterday Maximum 2MeV Flux: 2968 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Mar 29th, 2025 1:07:44 am
Space Weather Message Code: ALTEF3
- Serial Number: 3440
- Issue Time: 2025 Mar 29 0507 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3439
- Begin Time: 2025 Mar 28 1410 UTC
- Yesterday Maximum 2MeV Flux: 2819 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Mar 28th, 2025 7:57:55 pm
Space Weather Message Code: WARK04
- Serial Number: 4894
- Issue Time: 2025 Mar 28 2357 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4893
- Valid From: 2025 Mar 25 2017 UTC
- Now Valid Until: 2025 Mar 29 1200 UTC
- Warning Condition: Persistence
- 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.
Geophysical Alert Message Issued: Mar 28th, 2025 12:09:59 pm
Space Weather Message Code: SUMX01
- Serial Number: 191
- Issue Time: 2025 Mar 28 1609 UTC
- SUMMARY: X-ray Event exceeded X1
- Begin Time: 2025 Mar 28 1503 UTC
- Maximum Time: 2025 Mar 28 1521 UTC
- End Time: 2025 Mar 28 1542 UTC
- X-ray Class: X1.1
- Location: N06E75
- NOAA Scale: R3 - Strong
- Comment: This summary is resent to correct the X-ray Class of this event to an X1.1 vs an X1.4.
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
- Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Geophysical Alert Message Issued: Mar 28th, 2025 11:50:52 am
Space Weather Message Code: SUMX01
- Serial Number: 190
- Issue Time: 2025 Mar 28 1550 UTC
- SUMMARY: X-ray Event exceeded X1
- Begin Time: 2025 Mar 28 1503 UTC
- Maximum Time: 2025 Mar 28 1521 UTC
- End Time: 2025 Mar 28 1542 UTC
- X-ray Class: X1.4
- Location: N06E75
- NOAA Scale: R3 - Strong
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
- Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
