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Io-B N events April 23, 2025 from the Dark Sky Observatory
Thanks to Thomas Ashcraft for the head's up about this event.? I have posted 4 spectrograms.? The first shows the full extent of the "storm" from about 21:40 to 22:10.? Look first at frequencies between 22 and 24MHz, then look for a long string of bursts starting at about 25MHz and ending at about 23MHz.? the next three spectrograms show these bursts in more detail.
?
Richard Gray
250423214000Dark-Sky-Observatory.PNG
250423214100Dark-Sky-Observatory-A.PNG
250423214700Dark-Sky-Observatory-B.PNG
250423215300Dark-Sky-Observatory-C.PNG
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