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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 28th, 2025 11:18:29 am
Space Weather Message Code: ALTXMF
- Serial Number: 477
- Issue Time: 2025 Mar 28 1518 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2025 Mar 28 1507 UTC
- NOAA Scale: R2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- 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.
Geophysical Alert Message Issued: Mar 28th, 2025 10:28:36 am
Space Weather Message Code: ALTEF3
- Serial Number: 3439
- Issue Time: 2025 Mar 28 1428 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Threshold Reached: 2025 Mar 28 1410 UTC
- Station: GOES16
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Mar 28th, 2025 4:23:02 am
Space Weather Message Code: WARK04
- Serial Number: 4893
- Issue Time: 2025 Mar 28 0823 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4892
- Valid From: 2025 Mar 25 2017 UTC
- Now Valid Until: 2025 Mar 28 2359 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 27th, 2025 12:53:51 pm
Space Weather Message Code: WARK04
- Serial Number: 4892
- Issue Time: 2025 Mar 27 1653 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4891
- Valid From: 2025 Mar 25 2017 UTC
- Now Valid Until: 2025 Mar 28 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 27th, 2025 12:47:17 pm
Space Weather Message Code: WARK05
- Serial Number: 2004
- Issue Time: 2025 Mar 27 1647 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2003
- Valid From: 2025 Mar 26 0131 UTC
- Now Valid Until: 2025 Mar 28 0600 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 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Geophysical Alert Message Issued: Mar 27th, 2025 12:08:45 pm
Space Weather Message Code: ALTK05
- Serial Number: 1733
- Issue Time: 2025 Mar 27 1608 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Mar 27 1605 UTC
- Synoptic Period: 1500-1800 UTC
- Active Warning: Yes
- NOAA Scale: G1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Geophysical Alert Message Issued: Mar 27th, 2025 11:03:07 am
Space Weather Message Code: ALTK05
- Serial Number: 1732
- Issue Time: 2025 Mar 27 1503 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Mar 27 1459 UTC
- Synoptic Period: 1200-1500 UTC
- Active Warning: Yes
- NOAA Scale: G1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Geophysical Alert Message Issued: Mar 27th, 2025 5:02:33 am
Space Weather Message Code: ALTK05
- Serial Number: 1731
- Issue Time: 2025 Mar 27 0902 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Mar 27 0859 UTC
- Synoptic Period: 0600-0900 UTC
- Active Warning: Yes
- NOAA Scale: G1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Geophysical Alert Message Issued: Mar 27th, 2025 1:57:35 am
Space Weather Message Code: ALTK05
- Serial Number: 1730
- Issue Time: 2025 Mar 27 0557 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Mar 27 0551 UTC
- Synoptic Period: 0300-0600 UTC
- Active Warning: Yes
- NOAA Scale: G1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Geophysical Alert Message Issued: Mar 27th, 2025 12:52:46 am
Space Weather Message Code: WARK05
- Serial Number: 2003
- Issue Time: 2025 Mar 27 0452 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2002
- Valid From: 2025 Mar 26 0131 UTC
- Now Valid Until: 2025 Mar 27 1800 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 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
