Re: [hamsci-grape] HamSCI PSWS Meeting Reminder

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David G. McGaw

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Jun 5, 2025, 9:30:12 AM6/5/25

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One of our Dartmouth students, Sophia Wong '28, has done a project on the effects of the April eclipse on the AM Broadcast Band. She will present it to this forum today. It includes a movie of the changes in propagation through the day.

73,

David N1HAC

On 6/4/25 5:30 PM, 'Rachel Boedicker' via hamsci-grape wrote:

Hello everyone,

We have a zoom meeting for the HamSCI PSWS Group at 10:00 ET tomorrow morning. Please join us on Zoom.

You can add items directly to the minutes, or let me know at the start of the meeting tomorrow.

73,
Rachel Boedicker AC8XY

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Topic: HamSCI Grape PSWS Weekly Meeting
Time: This is a recurring meeting Meet anytime

Join Zoom Meeting
https://scranton.zoom.us/j/97869930607?pwd=MFdJMFJIbWJ6Qm1iRHhBRm56ZVNZZz09

Meeting ID: 978 6993 0607
Passcode: 975263
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Lawrence Naif

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Jun 17, 2025, 1:41:33 AM6/17/25

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This is a short movie of the change in the Quanternion norm, a composite metric derived from ionospheric parameters derived from the COSMIC-2 Data, Near Real-Time Operational Datasets: COSMIC-2 data processed operationally in near-real time for the Absolute total electron content. The period is 7-8 April 2024 across all 192 GPS-LEO combinations. The object is to use this data as a potential one of a range of warning metrics for detection of periods of Ionospheric risk that can potentially lead to disruptions in satellite-based systems., A higher norm value indicates greater combined variability in underlying ionospheric risk drivers, suggesting increased ionospheric activity.

Any thoughts?

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