[Ietf-calsify] GEO in draft-ietf-calsify-rfc2445bis-07.txt
sla at ucolick.org
Tue Jul 10 12:51:39 PDT 2007
On Tue 2007-07-10T12:09:22 -0700, Ted Hardie hath writ:
> Other IETF working groups have based their work on WGS-84,
> and I'd suggest that one way forward it to state that WGS-84
> is the default datum.
WGS-84 is more US-centric than is required by an international
specification, especially given the expectation of the Galileo
Terrestrial Reference Frame GTRF
At the level of 1 m any of them will do.
Below the level of 1 m WGS-84 has changed and as of today does not
produce the same results as it did a decade ago. This is geodetically
akin to the leap second -- the reference point changed -- except that
in the case of GEO the current language makes it clear that nobody cares.
Steve Allen <sla at ucolick.org> WGS-84 (GPS)
UCO/Lick Observatory Natural Sciences II, Room 165 Lat +36.99855
University of California Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m
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