Crowd Sourced Science Using Grape 1 DRF data/Apr 8 2024 Eclipse

[Gary Mikitin, AF8A]

Hello Grape Aficionados - I wanted to make everyone aware of an opportunity to do some interesting science with the Grape 1 Doppler network, using DRF data captured during the April 8, 2024 eclipse.  Some of you may have seen these posts on the main HamSCI Google Group, but if not, read on…

Dr. Mary Lou West, Professor Emeritus of Mathematics at Montclair State, has been leading discussions on the weekly HamSCIENCE Zoom calls on methods for analyzing the Grape 1 DRF data, using the graphs generated by the U of A/HamSCI PSWS Central Control System (https://pswsnetwork.caps.ua.edu)

Sample of science questions which have been raised:

• Are the eclipse Doppler effects symmetrical, onset vs. recovery?
• Is the symmetry correlated to % obscuration at the midpoint?  Or frequency? Or local time?
• Are the number of propagation modes (hops) correlated to any of the same?
• Are there other science questions not yet considered?

Attached is a PDF doc from Dr. West, suggesting analytical methods.   Also, sample observations saved in a spreadsheet format.

One could call this ‘crowd sourced analysis’.  One or two people looking at the data might find something interesting but the odds are much better if 5, 10 or even 20 people put their minds to the task.  Mary Lou is asking for input from the Grape project followers and from those who are generating this data by hosting Grape 1 DRFs.  Her email address is at the end of the PDF document.

Feel free to post questions and/or comments here, and even better yet, join us on Thursdays, 2000UTC (4PM ET) on the HamSCIENCE Zoom calls.  Call details are on the HamSCI website (https://hamsci.org/get-involved).

73 de Gary, AF8A