This flight was supposed to be about 2 hours and 55 minutes, which by the way, it was 3 hours and 11 minutes. so the time was very accurate to our predictions. we know this because the arduino recorded the GPS launching and landing. We were able to retrieve the GPS data from the arduino and put it in Google Earth to see the flight path. however, we only got the first 21k feet then lost signal and got the descent from 40,000 feet. These two section of flight are in the right places. we were kind of frustrated when we could not see how high the thing got, so we did some engineer math and stuff to figure out a theoretical flight profile using the NASA atmosphere model. it rose very slowly to 94k and fell quickly due to not much air resistance. This is the file of GPS "NMEA" sentences recorded by the Arduino. You can open this file in Notepad to look at what a GPS writes, and you can do File>Open in Google Earth to open the flight path and see where the balloon went... ![]()
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11/23/2016 05:18:24 pm
Awesome work with the atmosphere model! It's too bad you lost GPS data, but it's really cool that you could regenerate some of it using mathematical models!
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AuthorMalachi and Ezra's page where we build cool stuff and either break it, set fire to it, etc. in the name of science. Archives
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