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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: Jun 1st, 2025 12:50:04 pm
Space Weather Message Code: SUMPX2
- Serial Number: 57
- Issue Time: 2025 Jun 01 1650 UTC
- SUMMARY: Proton Event 10MeV Integral Flux exceeded 100pfu
- Begin Time: 2025 Jun 01 0540 UTC
- Maximum Time: 2025 Jun 01 0915 UTC
- End Time: 2025 Jun 01 1240 UTC
- Maximum 10MeV Flux: 666 pfu
- NOAA Scale: S2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
Geophysical Alert Message Issued: Jun 1st, 2025 9:47:47 am
Space Weather Message Code: ALTK08
- Serial Number: 52
- Issue Time: 2025 Jun 01 1347 UTC
- ALERT: Geomagnetic K-index of 8, 9-
- Threshold Reached: 2025 Jun 01 1346 UTC
- Synoptic Period: 1200-1500 UTC
- Active Warning: Yes
- NOAA Scale: G4 - Severe
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 45 degrees Geomagnetic Latitude.
- Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
- Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
- Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
- Radio - HF (high frequency) radio propagation sporadic or blacked out.
- Aurora - Aurora may be seen as low as Alabama and northern California.
Geophysical Alert Message Issued: Jun 1st, 2025 8:42:56 am
Space Weather Message Code: ALTK07
- Serial Number: 186
- Issue Time: 2025 Jun 01 1242 UTC
- ALERT: Geomagnetic K-index of 7
- Threshold Reached: 2025 Jun 01 1242 UTC
- Synoptic Period: 1200-1500 UTC
- Active Warning: Yes
- NOAA Scale: G3 - Strong
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
- Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
- Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
- Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
- Radio - HF (high frequency) radio may be intermittent.
- Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Geophysical Alert Message Issued: Jun 1st, 2025 8:31:45 am
Space Weather Message Code: ALTK06
- Serial Number: 636
- Issue Time: 2025 Jun 01 1231 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2025 Jun 01 1228 UTC
- Synoptic Period: 1200-1500 UTC
- Active Warning: Yes
- NOAA Scale: G2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
- Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
- Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
- Radio - HF (high frequency) radio propagation can fade at higher latitudes.
- Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Geophysical Alert Message Issued: Jun 1st, 2025 8:19:01 am
Space Weather Message Code: ALTK05
- Serial Number: 1787
- Issue Time: 2025 Jun 01 1219 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Jun 01 1214 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: Jun 1st, 2025 6:49:44 am
Space Weather Message Code: ALTK07
- Serial Number: 185
- Issue Time: 2025 Jun 01 1049 UTC
- ALERT: Geomagnetic K-index of 7
- Threshold Reached: 2025 Jun 01 1045 UTC
- Synoptic Period: 0900-1200 UTC
- Active Warning: Yes
- NOAA Scale: G3 - Strong
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
- Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
- Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
- Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
- Radio - HF (high frequency) radio may be intermittent.
- Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Geophysical Alert Message Issued: Jun 1st, 2025 6:15:12 am
Space Weather Message Code: ALTK06
- Serial Number: 635
- Issue Time: 2025 Jun 01 1015 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2025 Jun 01 1008 UTC
- Synoptic Period: 0900-1200 UTC
- Active Warning: Yes
- NOAA Scale: G2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
- Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
- Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
- Radio - HF (high frequency) radio propagation can fade at higher latitudes.
- Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Geophysical Alert Message Issued: Jun 1st, 2025 5:29:51 am
Space Weather Message Code: ALTK05
- Serial Number: 1786
- Issue Time: 2025 Jun 01 0929 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Jun 01 0924 UTC
- Synoptic Period: 0900-1200 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: Jun 1st, 2025 4:04:56 am
Space Weather Message Code: ALTK08
- Serial Number: 51
- Issue Time: 2025 Jun 01 0804 UTC
- ALERT: Geomagnetic K-index of 8, 9-
- Threshold Reached: 2025 Jun 01 0800 UTC
- Synoptic Period: 0600-0900 UTC
- Active Warning: Yes
- NOAA Scale: G4 - Severe
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 45 degrees Geomagnetic Latitude.
- Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
- Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
- Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
- Radio - HF (high frequency) radio propagation sporadic or blacked out.
- Aurora - Aurora may be seen as low as Alabama and northern California.
Geophysical Alert Message Issued: Jun 1st, 2025 3:20:56 am
Space Weather Message Code: WARK07
- Serial Number: 127
- Issue Time: 2025 Jun 01 0720 UTC
- WARNING: Geomagnetic K-index of 7 or greater expected
- Valid From: 2025 Jun 01 0720 UTC
- Valid To: 2025 Jun 01 2100 UTC
- Warning Condition: Onset
- NOAA Scale: G3 or greater
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
- Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
- Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
- Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
- Radio - HF (high frequency) radio may be intermittent.
- Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
