Network station details

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General Information

Station Name	Merriwa
Partner(s)	Upper Hunter Shire Council
Status (not a live update)	Operational
CORSnet-NSW Release Date	May 2012
Station Code	MRWA
SCIMS Number	TS 12173
Receiver	TRIMBLE NETR9
Antenna	TRM57971.00     NONE
Antenna Height (ARP)	0.000 m
IGS Site Log	text file (log 10 kb)

 

GNSS Tracking Settings

GPS	L2C	L5	GLONASS	Galileo	BeiDou	QZSS	SBAS
ON	OFF	OFF	ON	OFF	OFF	OFF	OFF

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

 

CORSnet-NSW Horizontal Coordinates

	Datum	Coordinate	Source
X	GDA94(2010)	-4698466.685	Reg13 (PDF 897 kb)
Y	GDA94(2010)	2673955.850	Reg13 (PDF 897 kb)
Z	GDA94(2010)	-3373718.176	Reg13 (PDF 897 kb)
Latitude	GDA94(2010)	-32 08 23.15976	Reg13 (PDF 897 kb)
Longitude	GDA94(2010)	150 21 18.92603	Reg13 (PDF 897 kb)
Easting	MGA94(2010) Zone 56	250530.864	Reg13 (PDF 897 kb)
Northing	MGA94(2010) Zone 56	6441007.717	Reg13 (PDF 897 kb)
Easting 2	MGA94(2010) Zone -	-	-
Northing 2	MGA94(2010) Zone -	-	-

Note: These horizontal coordinates are different to those found in SCIMS Online, which are GDA(1997) coordinates. SCIMS Online values for CORS are determined by local tie surveys which connect to the local survey control network.

 

CORSnet-NSW Heights

	Datum	Value (m)	Source
Ellipsoidal Height, h	GDA94(2010)	288.253	Reg13 (PDF 897 kb)
Derived AHD71 Height (1998)	Approximate AHD71	259.954	h-N (DFSI Spatial Services Calculated)
N value (1998)	AUSGeoid98	28.299	Geoscience Australia
Derived AHD71 Height (2009)	Approximate AHD71	260.271	h-N (DFSI Spatial Services Calculated)
N value (2009)	AUSGeoid09	27.982	Geoscience Australia

Note: These 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

 

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.