Radiosonde V1640937 recovered by Akke

Found another old sonde. Around 540days old, after an hour searching estimated area saw a little bit of the sonde that was almost completely swallowed by the ground. Tried to pull the balloon from the string but the string just came out of the ground already snapped. Sonde recovered
https://sondehub.org/V1640937 #radiosonde #sondeHub