[amsat-bb] Eclipse Day APRS balloons?

I added the PLOT of all the 46 APRS balloons on Eclipse day to my Balloon page.

http://aprs.org/balloons.html

I assume these were trackers on all the 50 NASA balloons launched that day by students all across the country to stream live video of the event. But there is not a single mention of APRS on their web page, and not a single Ham has mentioned involvement here on the APRSSIG or on AMSAT. Yet all the balloons had Ham calls. I’d like someone involved to document the HAM involvement in this massive undertaking and describe the APRS portion so I can add it to the web page.

And why does FINDU.COM find about 148 Balloons in the USA, and I can only count about 50 along the path and only a few more..?

Bob