possible telemetry interference/interpolated data

It appears that this sonde lost signal briefly a little after an hour
into the flight at 18:36:42 (altitude approx 17 km.  Signal was recovered,
but it is possible that the signal was from a different sonde - temp and
RH data appear to be interpolated in the interval from 17 to 20 km.  I
would treat all data above 17 km (after 18:36:42) as questionable.

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