GPS : P4 / GRINGO

LINKS

The user guide for P4 can be downloaded here.

The GRINGO and P4 homepages at Nottingham University.

The ordnance survey active GPS stations are here (free, but registration required). Note: the OS grid reference for Leeds is SE3135.

A map of active OS GPS stations can be found here

Satellite ephemerides from the JPL.

Information about the RINEX data format.

CODE

A program to convert earth centred, earth fixed coordinates to lat, lon, alt is here (author: S Mobbs?)

A program to convert lat, lon to OS grid references is to be found here (author: S Mobbs?) Note: this program requires the following (gzipped) data file (6.5Mb).