[Antelope] lat,lon

[David VonSeggern]

One of the defects of the CSS3.0 schema is that latitude and longitude  
are only stored
to 4 decimal places (roughly 10-m accuracy).  Some of us may wish to  
use Antelope for
sensors that are more closely spaced than what the CSS3.0 site table  
can accurately
describe.   I am currently setting up to handle a seismic exploration  
receiver line with 15-m
geophone spacing.

Has anyone out there dealt with this and devised a new schema relation  
to basically
make an alternate site table which would store lat-lon to 5 or 6  
decimal places?  I just
thought I would not redefine this until I saw what had been done  
elsewhere.

David von Seggern