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projecthorus / sondehub-tracker

🎈 Frontend for SondeHub Radiosonde Tracking
https://v2.sondehub.org
MIT License
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hPa pressure Sondehub #303

Closed 14ri004 closed 11 months ago

14ri004 commented 11 months ago

hello, when the hPa pressure reaches 0 (zero) the result goes to 4095 hPa, often when the probe exceeds its theoretical height of 35000m, until the moment it bursts, the pressure returns to normal up to sea level .

Capture

darksidelemm commented 11 months ago

Not much we can do about this - this value is what the sonde is reporting! The grafana plots show that this is most likely the pressure sensor on the sonde reporting incorrectly at very low pressures. https://grafana.v2.sondehub.org/d/bbaa7894-e5f4-4c0d-be96-897b4ffde43b/radiosonde-telemetry-dashboard?var-Serial=210-2-01994&from=1698491785000&to=1698501116000&orgId=1

I've seen this from quite a few different MEMS pressure sensor types, which is what the M20 is using.

darksidelemm commented 11 months ago

Going to close this one, as there isn't much we can do about this.