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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: Feb 23rd, 2025 2:31:50 pm
Space Weather Message Code: ALTXMF
- Serial Number: 476
- Issue Time: 2025 Feb 23 1931 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2025 Feb 23 1925 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: Feb 20th, 2025 4:09:50 am
Space Weather Message Code: SUM10R
- Serial Number: 860
- Issue Time: 2025 Feb 20 0909 UTC
- SUMMARY: 10cm Radio Burst
- Begin Time: 2025 Feb 20 0444 UTC
- Maximum Time: 2025 Feb 20 0444 UTC
- End Time: 2025 Feb 20 0445 UTC
- Duration: 1 minutes
- Peak Flux: 200 sfu
- Latest Penticton Noon Flux: 178 sfu
- 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.
Geophysical Alert Message Issued: Feb 20th, 2025 3:37:04 am
Space Weather Message Code: ALTTP2
- Serial Number: 1401
- Issue Time: 2025 Feb 20 0837 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 Feb 19 2338 UTC
- Estimated Velocity: 553 km/s
- Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
Geophysical Alert Message Issued: Feb 19th, 2025 3:58:13 pm
Space Weather Message Code: ALTK04
- Serial Number: 2528
- Issue Time: 2025 Feb 19 2058 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Feb 19 2055 UTC
- Synoptic Period: 1800-2100 UTC
- Active Warning: Yes
- 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: Feb 19th, 2025 3:25:24 pm
Space Weather Message Code: WARK04
- Serial Number: 4845
- Issue Time: 2025 Feb 19 2025 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Feb 19 2024 UTC
- Valid To: 2025 Feb 20 0600 UTC
- Warning Condition: Onset
- 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: Feb 19th, 2025 3:04:59 am
Space Weather Message Code: WARK05
- Serial Number: 1977
- Issue Time: 2025 Feb 19 0804 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Feb 19 0804 UTC
- Valid To: 2025 Feb 19 1500 UTC
- Warning Condition: Onset
- 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: Feb 19th, 2025 2:37:07 am
Space Weather Message Code: WARK04
- Serial Number: 4844
- Issue Time: 2025 Feb 19 0737 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4843
- Valid From: 2025 Feb 18 2234 UTC
- Now Valid Until: 2025 Feb 19 1500 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: Feb 18th, 2025 7:02:38 pm
Space Weather Message Code: ALTK05
- Serial Number: 1698
- Issue Time: 2025 Feb 19 0002 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Feb 18 2359 UTC
- Synoptic Period: 2100-2400 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: Feb 18th, 2025 8:49:58 pm
Space Weather Message Code: ALTK05
- Serial Number: 1699
- Issue Time: 2025 Feb 19 0149 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Feb 19 0149 UTC
- Synoptic Period: 0000-0300 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: Feb 18th, 2025 5:43:11 pm
Space Weather Message Code: WARK05
- Serial Number: 1975
- Issue Time: 2025 Feb 18 2243 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Feb 18 2242 UTC
- Valid To: 2025 Feb 19 0300 UTC
- Warning Condition: Onset
- 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.
