On 5/20/12 North Texas Near Space (NTNS) and Project Soar collaborated on a dual launch during the annular eclipse. Albuquerque was directly in path of the eclipse. The NTNS payload had most of the electronics that I had intended for a guided flight. That airframe is no more, but I have some data that I'd like to share with the group as a result. The dual launch was a great target of opportunity for looking at APM data at altitude. Most of the flight objectives were met.
NTNS-1 at Altitude.
Project Soar Payload at Altitude:
The NTNS-1 payload captured the Soar payload during descent. I don't know if this has been done before.
I'm glossing over the APM data because most of the setup, objectives, data plots, lessons learned, future activity are documented below. The APM data was converted to CSV so that it's fairly easy to read. I really brute forced this and should have written a script. SW V2.28 was somewhat modified to reduce the data frequency to a constant 0.5 Hz. It turned out that the flight time from turn on to recovery was just under 3 hours and produced only an 805 kb log file. Obviously I needed to gather more variables or choose a higher rate. I was lucky enough to be able to walk up to the payload and turn it off. APM operated through the landing. There is another thread that we did pre-launch discussing tailoring of the data stream. Unfortunately I didn't get to far mainly due to time. I was done with SW the day before the launch.
Postflight Data and Reconstructions: Postflight
Data Spreadsheet and Plots: Analysis Spreadsheet
Log Files and other data: TM
Preliminary Video Rendering: Best in 1080p setting
If you poke around in the site you can find 1920X1080 frame captures for most events.
We're getting collectively closer to making some guided flights. Now we have 2 data sets. Best of luck to all.
Larry D. Grater