Issued: 2024 10 11 0546 UTC #------------------------------------------------# # PROPAGATION WARNING # # BIPT Ophain # # 50° 39' 30" N - 004° 21' 00" E # # # # POSSIBLE HARMFUL INTERFERENCE DUE TO # # SPECIAL EVENT # #------------------------------------------------# BIPT Propagation Bulletin 950 OBSERVATION PERIOD : 2024 10 11 0546 UTC INTERFERENCE RISK : Solar geomagnetic conditions REMARKS : Space Weather Prediction Center' of the NOAA (USA) is currently observing a level of solar geomagnetic activity: G4 severe. The potential risks are: * Power systems: Possible widespread voltage control problems and some protective systems will mistakenly trip out key assets from the grid. * Spacecraft operations: May experience surface charging and tracking problems, corrections may be needed for orientation problems. * Other systems: Induced pipeline currents affect preventive measures, HF radio propagation sporadic, satellite navigation degraded for hours, low-frequency radio navigation disrupted, and aurora has been seen as low as Alabama and northern California (typically 45° geomagnetic lat.). OPERATOR : S. Marotte SEE OUR PROGPAGATION GRAPHS : https://propa.bipt.be Contact us for specific information. #------------------------------------------------------------------------# # Belgian Institute for Postal Services and Telecommunications # # # # Ellipse Building C # # Boulevard du Roi Albert II 35 box 1 # # 1030 Brussels # # Tel.: 32 (0) 2 226 88 88 # # info@bipt.be # # # # Please do not reply directly to this message, but send comments # # and suggestions to 'propa@bipt.be'. # # To subscribe or unsubscribe, send a mail to 'propa@bipt.be' # # For more information, see https://propa.bipt.be # #------------------------------------------------------------------------#