My commentary on the 4 APRS packets we received during the descent, including the scary 25 minute "dark period" http://www.bberger.net/rwb/balloon_c1/c1_aprs_analysis.txt GPS data for the entire flight, recorded onboard every 15 seconds:] http://www.bberger.net/rwb/balloon_c1/c1_gps_flight.xml