# Beidou Satellites Misclassification

DevFeed: [Beidou Satellites Misclassification](<https://devfeed.tech/articles/beidou-satellites-misclassification-36259.md>)

Original publisher: [Read original article](<https://berthub.eu/articles/posts/beidou-satellites/>)

Published: 2019-09-02T06:37:13Z

Content type: article

Language: en

Sources: [Bert Hubert's writings](<https://devfeed.tech/sources/bert-hubert-s-writings.md>)

Topics: [Monitoring](<https://devfeed.tech/topics/monitoring.md>), [Database](<https://devfeed.tech/topics/database.md>)

Tags: [automated](<https://devfeed.tech/tags/automated.md>), [gnss](<https://devfeed.tech/tags/gnss.md>), [gps](<https://devfeed.tech/tags/gps.md>), [location](<https://devfeed.tech/tags/location.md>), [monitoring](<https://devfeed.tech/tags/monitoring.md>), [orbit](<https://devfeed.tech/tags/orbit.md>), [space](<https://devfeed.tech/tags/space.md>), [speed](<https://devfeed.tech/tags/speed.md>)

## AI overview

The article describes GNSS monitoring with galmon and an automated process that matches satellite orbits to published TLE data. It reports that BeiDou satellite pairs C21/C22 and C25/C26 appear to be swapped, and that M11 and M12 may also be reversed pending verification.

## Source excerpt

Hi everyone, As noted previously I've gone all in on GNSS monitoring. GNSS is the generic term for GPS, Galileo, GLONASS and BeiDou satellites. Eventually a big blog post will come out, but meanwhile you can see the results on galmon.eu. A few days ago, an unknown GLONASS satellite started transmitting signals on slot R26 and I tried to figure out which one it was. By definition, GNSS satellites broadcast their own very precise location & speed, which makes it possible to match up their orbit to published "TLEs", which document where objects in space are.