Re: Y2K [OFFTOPIC]
H. Peter Anvin (hpa@transmeta.com)
25 Jun 1998 18:29:08 GMT
Followup to: <Pine.LNX.3.95.980625124630.241A-100000@chaos.analogic.com>
By author: "Richard B. Johnson" <root@chaos.analogic.com>
In newsgroup: linux.dev.kernel
>
> It's called Poynting-vector compensation. The GPS satellite orbits form
> the outer surface of a sphere, with the center of the earth at its center.
> If you could read the GPS time from the center of the earth, they would
> all be identical. The actual wall-clock time of the satellites is not
> important although it's maintained within a few microseconds of whatever
> NIST says it should be. It's the difference between carrier
> phase/frequency and time/position that makes GPS work. We don't care
> who's clock is used.
>
Unless, of course, you're using GPS to obtain wall clock time...
-hpa
--
PGP: 2047/2A960705 BA 03 D3 2C 14 A8 A8 BD 1E DF FE 69 EE 35 BD 74
See http://www.zytor.com/~hpa/ for web page and full PGP public key
I am Bahá'í -- ask me about it or see http://www.bahai.org/
"To love another person is to see the face of God." -- Les Misérables
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu