DM17 - 2019-12-26

Tracker Details

Tracker Type: WSPR

Model: PicoTrackerWSPR1 Rev5 0.6mm thickness

Powered by 1 123 battery


Configuration:

Parameters: (set <param> <val>)
trackerId[4]            : DM17
wsprCallsignId[2]       : 12
gpsLockTimeoutMs        : 150000 2:30
lhAltFtThreshold        : 18000
hAlt.wakeAndEvaluateMs  : 1800000 30:00
lAlt.wakeAndEvaluateMs  : 420000 7:00
lAlt.stickyMs           : 10800000 3:00:00
crystalCorrectionFactor : 1200
systemClockOffsetMs     : 0


Changed to ID 12 to avoid new frequent clashes.

Launch Parameters

Balloon and Payload

  • Large custom balloon
  • 22.9 gram payload
  • 2.9 grams free lift
  • Half-wave antenna.

Heat sealed neck.

Predictions

Actuals

Traveled ~3,600 miles

Got approx 4/5 across the Atlantic.

Max altitude ~30,000 ft.

Cause of death unclear.


Custom balloon successful!

See the TR9 balloon page (link) for details!

General Thoughts / Observations

Custom balloon did very well. This is a first, and using the TR9 material.

Go for a bigger balloon in the future. Really aim for max altitude and avoid weather (which is probably the ultimate cause of death).