Patchewollock CORS Patchewollock, Victoria, Australia
By Geocaching Australia on 12-Jul-18. Waypoint TP7834

CORS (Continually Operating Reference Stations) collecting geodetic data from GNSS.

A CORS is a Continuously Operating Reference Station. CORS can take the place of a traditional base station used in differential GNSS positing. They can give an instant position to an accuracy of ± 20 mm and are used in many industries including Precision Agriculture, Construction, Mining, Surveying and in Scientific Research.

Typically, the maximum distance between a base station and rover GNSS set up is around 10 - 15 km. This is due to the effect of the atmosphere on the GNSS signals as they travel from the satellite to a GNSS receiver.

With the establishment of a network of CORS, the distance between the base and the rover can be extended. The CORS can be spaced around 70 km apart and using at least 3 of these CORS, the atmospheric effects can be modeled and corrected for, yielding the ± 20 mm position solution required by so many industries.

More info on CORS can be found here: CORS

To log a find on the Geocaching Australia website, you will need to include a picture of the CORS, along with your GPS and/or yourself.  You are encouraged to leave a description of your journey in your log to help others in finding the CORS.

The Patchewollock CORS antenna is located on the roof of the CFA Station, Sea Lake Road, Patchewollock

Name:   PACH
Services:   Realtime & Rinex
Latitude:   S35 22.977
Longitude:   E142 11.453
Elevation:   unknown