This is in response to @kohlab 's query from September 27. A bot closed the thread, so I can’t reply directly there.
I looked at the data the tracking manager produces, and it seems to be:
- utc: UTC time the data was recorded
- _type: “pos”, indicating this is position data
- cog: Course On Ground, i.e. the compass direction the device has been moving in (pretty sure this is not magnetic but true heading)
- sog: Speed On Ground, i.e. the ground speed of the device, in kilometers per hour
- loc.lat: Latitude in decimal degrees (positive for the northern hemisphere, negative for the southern)
- loc.lon: Longitude in decimal degrees (positive for the eastern hemisphere, negative for the western)
- alt: Altitude above sea level in meters
- _stamp: Complete time stamp of when the data was recorded
- nsat: Number of satellites observed