ENA/SONDE/C1 - File contains data during balloon descent

This sonde flight did not terminate in the normal fashion after balloon burst.  I 
continued to collect data during the descent back to the ground.  Data quality is not affected, 
length of file is longer than expected.

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• Wind status(wstat)
• Dry Bulb Temperature(tdry)
• North Latitude(lat)
• lon(lon)
• Time offset from base_time(time_offset)
• -180.0 - +180.0(alt)
• Relative Humidity (hybrid-b grid)(rh)
• Wind Direction(deg)
• base time in epoch(base_time)
• Easterly Wind Component(u_wind)
• Ascent rate(asc)
• Wind Speed(wspd)
• Dewpoint Temperature(dp)
• Retrieved pressure profile(pres)
• time_in_seconds_since_volume_start(time)
• V wind component(v_wind)