[ntp:questions] NTP architecture recommendation
David J Taylor
david-taylor at blueyonder.not-this-bit.nor-this-bit.co.uk
Sun Aug 19 18:30:14 UTC 2007
Richard B. Gilbert wrote:
> I don't think that a 14 channel receiver would be useful! There
> simply are not that many satellites! The last I knew, there were 27
> NavStar (GPS) satellites in orbit. Of these, about seven are usually
> above the horizon at any one time.
There can be more than that - here's an example with 13 visible.
According to this source, there are 31 active satellites:
More in orbit, I expect, now dead.
What do they do with decommissioned GPS satellites?
More information about the questions