|
|
|
|
|
|
by F00Fbug
1680 days ago
|
|
|
Not GPS - the locations are derived from measuring doppler shift over a handful of messages. If you know where the spacecraft is, you can derive the location of the transmitter. On a good day you can get 100-400m accuracy. Not close to GPS, but good enough for tracking animals. I managed the North American data center for www.argos-system.org for many years. |
|
|