Pressure jump at launch

The difference between first pressure value reported by the radiosonde 
after launch (954.4) and the surface value entered by the operator (961.7)
is greater than expected , indicating that either ths sonde was jarred on 
launch or that the system mis-identified start time.

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