22 Mar 2025 Dead Band
¿ªÔÆÌåÓýToday there was very little band noise in the morning (1200-1700 UTC ).? SWPC did not report any X-ray flares.? Also, the preceding day's band noise took longer than usual to decay.? Was there a CME impact to the geomagnetic field today or yesterday?? The K-index was high, but was it CME-impact high?? Something of a mystery.? Spectrograms from the 17th through 21st show the normal sunrise onset of band noise propagation. |
Dave Typinski