Re: GPS was used as part of the STS-121 landing this morning

In article <MPPug.83897$1i1.41352@attbi_s72>, Sam Wormley <swormley1@xxxxxxxxx> wrote:

STS-121-Discovery likely has access to the P(Y) code signals.

PPS? Yeah, I guess that could be it, given NASA is a U.S. government
agency with that sort of access -- and they do have reserved bandwidth
on the TDRS satellite system for their missions; a service normally
available mostly to the military.

It's just not immediately clear to me if they elected to use PPS alone
or PPS/SPS plus LAAS type corrections, or some combination thereof.

-Dan
.