TECH Signal 475
SondeHub's joke radiosonde tracker accidentally mapped military sites and now fields .mil requests
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A domain purchased as a joke redirect for weather balloon tracking evolved into SondeHub, a service whose reverse-prediction feature accidentally revealed military artillery sites and vessels, drawing requests from .mil and .gov addresses.
What started as a hobbyist tool now sits at the intersection of open data and military secrecy, with real consequences, requests to remove sensitive sites, traffic spikes during geopolitical incidents, and ongoing API abuse likely from a private company scraping military-relevant data.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
SondeHub began in 2018 as a joke URL redirect from sondehub.org to habhub.org but grew into a full radiosonde tracking service by 2021.
Reverse predictions of balloon launch locations accidentally mapped military artillery sites and vessels, prompting removal requests.
After the 2023 'China spy balloon' incident, SondeHub received .mil and .gov support requests and now faces repeated API abuse from a single IP.
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