====== XABEN9 height vs time ======

Low Altitude Ascent Rate = 314m/min

High Altitude Ascent Rate = 498m/min

Average Ascent rate = 390m/min

Predicted Ascent rate based on 1400g balloon, 800g payload and a fill of 4.33cu m giving 3.25Kg of free lift = 422m/min.

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