Alice Springs CORS Kilgariff, Northern Territory, Australia
By Geocaching Australia on 19-Apr-17. Waypoint TP7609

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 modelled and corrected for, yielding the ±20 mm position solution required by so many industries.

More info on CORS can be found here: CORS

NT Goverment Alice Springs CORS

Official name of this Trig Station as per SmartNet Australia is 21NA.

Services:   Realtime & Rinex
Latitude:   23° 46' 01.20200" S     (S23 46.020)
Longitude:   133° 52' 45.16040" E     (E133 52.753)
Elevation:   574.711 (Ellipsoidal)

Source:   SmartNet Aus

The extended name of this CORS is not listed on the SmartNet Aus website. The CORS is located in a precint which houses offices of various Northern Territory Government departments including: Arid Zone Research Centre; Mines & Energy; Primary Industries & Fisheries; Parks and Wildlife; and Resource Management. The name "NT Government Alice Springs CORS" has been chosen as an unofficial name. The area is accessible during normal business hours and there is an automatic gate at the Stuart Highway entrance. Outside business hours an access card/code is required. Although the gate may be open outside business hours, it can close without warning.

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