In article ,
TP wrote:
James Christie wrote:

The Russians have their own system called GLASNOSS

You have to be joking.


GLONASS. Can't recall off-hand how many satellites are in the
constellation at the moment, but they've been keeping it topped up.
In general GPS is better for accuracy at low latitudes, GLONASS
better at high latitudes. A high proportion of "GPS" receivers
are actually dual GPS/GLONASS.

--
Andy Breen ~ Interplanetary Scintillation Research Group
http://users.aber.ac.uk/azb/
"Time has stopped, says the Black Lion clock
and eternity has begun" (Dylan Thomas)