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Network station details

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General Information

Station Name Walwa Image of CORS Antenna
Partner(s) VIC Department of Environment, Land, Water and Planning (DELWP)
Status (not a live update) Operational
CORSnet-NSW Release Date September 2010
Station Code WALW
SCIMS Number TS 12145
Antenna TRM57971.00     NONE
Antenna Height (ARP) 0.000 m
IGS Site Log Geoscience Australia


GNSS Tracking Settings


Note: ON = Available and Enabled, OFF = Available but Not Enabled, N/A = Not Available


CORSnet-NSW Coordinates


Datum Coordinate Source
X GDA2020 -4370307.657 Reg13
(PDF 92.8 kb)
Y GDA2020 2759145.705 Reg13
(PDF 92.8 kb)
Z GDA2020 -3725281.452 Reg13
(PDF 92.8 kb)
Latitude GDA2020 -35 57 57.61133 Reg13
(PDF 92.8 kb)
Longitude GDA2020 147 44 03.06291 Reg13
(PDF 92.8 kb)
Easting MGA2020
Zone 55
566199.227 Reg13
(PDF 92.8 kb)
Northing MGA2020
Zone 55
6019573.179 Reg13
(PDF 92.8 kb)
Derived AHD71 Height (2020) Approximate AHD71 227.698 h-N (DFSI Spatial Services Calculated)
N Value (2020) AUSGeoid2020 14.502 Geoscience Australia
Ellipsoidal Height GDA2020 242.200 Reg13
(PDF 92.8 kb)



Datum Coordinate Source
X GDA94 -4370306.731 Conformal transformation from GDA2020
Y GDA94 2759145.727
Conformal transformation from GDA2020
Z GDA94 -3725282.671
Conformal transformation from GDA2020
Latitude GDA94 -35 57 57.65802
Conformal transformation from GDA2020
Longitude GDA94 147 44 03.04244
Conformal transformation from GDA2020
Easting MGA94
Zone 55
566198.703 Conformal transformation from GDA2020
Northing MGA94
Zone 55
6019571.744 Conformal transformation from GDA2020
Derived AHD71 Height (2009) Approximate AHD71 227.779 h-N (DFSI Spatial Services Calculated)
N value (2009) AUSGeoid09 14.513 Geoscience Australia
Ellipsoidal Height GDA94 242.292 Conformal transformation from GDA2020

Note: These horizontal coordinates are equivalent to GDA94(2010) i.e. no distortions. They are different to those found in SCIMS Online, which are GDA94(1997) coordinates i.e. with distortions. The heights are different to those found in SCIMS Online, which are local AHD71 heights. SCIMS Online values for CORS are determined by local tie surveys which connect to the local survey control network.


GNSS Monitoring

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Note: The above graph indicates the long term stability of a CORSnet-NSW station and does not represent actual daily movement. The results are calculated daily and trends are monitored by CORSnet-NSW staff. The diagrams shown are currently updated monthly. Daily differences in CORS position at the millimetre-level are within the limits (noise level) of current DFSI Spatial Services processing techniques.


Reference Mark Monitoring

Monitoring survey not available for this CORS.

Note: The above tables quantify the movement of the CORS pillar with respect to local reference marks. Surveys are carried out at installation and then after 6 months, 18 months and every two years thereafter. The techniques used, as specified by Geoscience Australia, achieve sub-millimetre precision and can detect minute movements in position or height.

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