GL68A Payload Z (workshop flight, small balloon) Data Notes
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The real-time clocks in the HOBO data loggers and on the Arduino
were not in sync. The HOBO time seems more accurate.

Launch time (Arduino): 11:42:02 AM
Launch time (HOBO data logger/accelerometer): 11:31:05 AM

Burst time (Arduino): 12:39:26 PM
Burst time (HOBO): 12:28:29 PM

Landing time (Arduino): 1:05:19 PM
Landing time (HOBO): 12:54:22 PM


Time in flight to burst: 57.40 minutes
Time in flight to landing: 83.28 minutes

Burst altitude: 85,167 feet

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All data from the Arduino was plotted from the time it was turned
on (about 5 minutes before flight) until about 10 minutes after
landing. All data from the HOBOs were plotted for the entired time
they were running, from 9:00 AM (about 2.5 hours before flight)
until about 3:00 PM (about 2 hours after landing). All data was
plotted versus time (for now) and has not yet been plotted versus
altitude.

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The HOBO external temperature probe likely came unplugged before 
flight, since the data for this channel is nonsensical. It was not
plotted. The heater was mounted in the payload very near the HOBO;
this is why the HOBO internal temperautre is significantly higher
than the Arduino internal temperature.

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Given their orientation during flight, the "X" axis of both the 
HOBO and Arduino accelerometers is the vertical axis.

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The KML file, which may be viewed in Google Earth, contains both
the ground track of the flight as well as an extruded view of the
flight path. You can select one or both (default) in the Paths
menu on the left. Note that the ground track even shows the payload
being recovered and walked back to the van.