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    SSM     FORRESTDALE 71
    Alternate names : H23-15 Map ref.: FORRESTDALE BG34 4.1
    APREF/NGCA codes: Database number : 16541747
    Stamp name:      H23-15 Date established :   28/02/2011
    Physical status : disturbed (Veris Australia Pty Ltd)Phys. status date :  17/07/2019
    Physical type :    brass plaqueHatch cover type : none
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 08 50.48388Easting (m) :   398210.365
    Longitude :  E 115 55 14.33940Northing (m) :  6442720.550
    Convergence :       -0 34 27.73
    Point scale factor : 0.99972777
    Coordinate date :       14/01/2020
    Horizontal method :   GNSS Survey NetworkCadastral connection : No
    Relative horiz. accuracy :       5ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.016 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.016
    Semi-minor axis (m) : 0.016
    Azimuth of semi-major axis (m) : 164 15 2
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   59809.942
    Northing (m) :  341806.077
    Convergence :       0 3 19.19
    Point scale factor : 1.00000025
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         27.196Height date :          16/03/2018
    Established by :  G.H.D. SurveysState :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : -4.562N-Value (m) :          -31.758
    Geoid model :         AusGeoid2020
    ** Derived GDA2020 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         -4.596Height date :          14/01/2020
    Established by :  LandgateState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.026m
    Mark to hatch cover :  
    Mark to ground level : 0
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : disturbed (Veris Australia Pty Ltd)Date :   17/06/2019
    Phys. type :    spikeSet in : concrete
    Azimuth :           254 13 7Type :   True azimuth
    Distance (m) :    1.646Type :   Horizontal
    Height diff. (m) : -0.089Type :   Spirit Levelling
    RM to GL (m) :   0.250
    RM2 Phys. status : disturbed (Veris Australia Pty Ltd)Date :   17/06/2019
    Phys. type :    spikeSet in : concrete
    Azimuth :           162 59 0Type :   True azimuth
    Distance (m) :    1.447Type :   Horizontal
    Height diff. (m) : -0.133Type :   Spirit Levelling
    RM to GL (m) :   0.250
    RM3 Phys. status : not located (Veris Australia Pty L)Date :   17/06/2019
    Phys. type :    spikeSet in : concrete
    Azimuth :           72 52 14Type :   True azimuth
    Distance (m) :    3.016Type :   Horizontal
    Height diff. (m) : -0.470Type :   Spirit Levelling
    RM to GL (m) :   0.400
    RM4 Phys. status : not located (Veris Australia Pty L)Date :   17/06/2019
    Phys. type :    spikeSet in : concrete
    Azimuth :           341 23 50Type :   True azimuth
    Distance (m) :    3.481Type :   Horizontal
    Height diff. (m) : -0.488Type :   Spirit Levelling
    RM to GL (m) :   0.400
    RM Position Information** Warning: RM coordinates should be verified prior to use
    ** Coordinates are calculated from reference observations
    ** Coordinate accuracies commensurate with related observations
    RM1
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 08 50.49841Easting (m) :   398208.786
    Longitude :  E 115 55 14.27896Northing (m) :  6442720.086
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   59808.358
    Northing (m) :  341805.631
    Height Information
    Vertical datum :   AHD71
    Height (m) :         27.107
    RM2
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 08 50.52880Easting (m) :   398210.802
    Longitude :  E 115 55 14.35556Northing (m) :  6442719.171
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   59810.364
    Northing (m) :  341804.693
    Height Information
    Vertical datum :   AHD71
    Height (m) :         27.063
    RM3
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 08 50.45504Easting (m) :   398213.237
    Longitude :  E 115 55 14.44938Northing (m) :  6442721.467
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   59812.825
    Northing (m) :  341806.962
    Height Information
    Vertical datum :   AHD71
    Height (m) :         26.726
    RM4
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 08 50.37677Easting (m) :   398209.222
    Longitude :  E 115 55 14.29703Northing (m) :  6442723.837
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   59808.835
    Northing (m) :  341809.377
    Height Information
    Vertical datum :   AHD71
    Height (m) :         26.708
    Cadastral Connection Fieldbooks
    No Fieldbooks for this mark
    Special Notes
    No Special Notes for this mark
    ATRF 2014
    GDA2020 coordinates are equivalent to ATRF2014@2020.0. ATRF2014 coordinates can be determined by application of the Australian Plate Motion Model. For general and technical information on GDA2020 see http://www.icsm.gov.au/gda2020 and ATRF2014 see http://www.icsm.gov.au/australian-terrestrial-reference-frame.
    View the graphic summary
    SSM     FORRESTDALE 71
    Alternate names : H23-15 Map ref.: FORRESTDALE BG34 4.1
    APREF/NGCA codes: Database number : 16541747
    Stamp name:      H23-15 Date established :   28/02/2011
    Physical status : disturbed (Veris Australia Pty Ltd)Phys. status date :  17/07/2019
    Physical type :    brass plaqueHatch cover type : none
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 08 50.53241Easting (m) :   398209.370
    Longitude :  E 115 55 14.30086Northing (m) :  6442719.045
    Convergence :       -0 34 27.75
    Point scale factor : 0.99972778
    Coordinate date :       17/05/2018
    Horizontal method :   Global Position SystemCadastral connection : No
    Relative horiz. accuracy :       20ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.01 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.010
    Semi-minor axis (m) : 0.009
    Azimuth of semi-major axis (m) : 145 0 0
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   59808.931
    Northing (m) :  241804.583
    Convergence :       0 3 19.17
    Point scale factor : 1.00000025
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         27.196Height date :          16/03/2018
    Established by :  G.H.D. SurveysState :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : -4.452N-Value (m) :          -31.649
    Geoid model :         AUSGeoid09 V1.01
    ** Derived GDA94 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         -4.596Height date :          14/01/2020
    Established by :  LandgateState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.026m
    Mark to hatch cover :  
    Mark to ground level : 0
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : disturbed (Veris Australia Pty Ltd)Date :   17/06/2019
    Phys. type :    spikeSet in : concrete
    Azimuth :           254 13 7Type :   True azimuth
    Distance (m) :    1.646Type :   Horizontal
    Height diff. (m) : -0.089Type :   Spirit Levelling
    RM to GL (m) :   0.250
    RM2 Phys. status : disturbed (Veris Australia Pty Ltd)Date :   17/06/2019
    Phys. type :    spikeSet in : concrete
    Azimuth :           162 59 0Type :   True azimuth
    Distance (m) :    1.447Type :   Horizontal
    Height diff. (m) : -0.133Type :   Spirit Levelling
    RM to GL (m) :   0.250
    RM3 Phys. status : not located (Veris Australia Pty L)Date :   17/06/2019
    Phys. type :    spikeSet in : concrete
    Azimuth :           72 52 14Type :   True azimuth
    Distance (m) :    3.016Type :   Horizontal
    Height diff. (m) : -0.470Type :   Spirit Levelling
    RM to GL (m) :   0.400
    RM4 Phys. status : not located (Veris Australia Pty L)Date :   17/06/2019
    Phys. type :    spikeSet in : concrete
    Azimuth :           341 23 50Type :   True azimuth
    Distance (m) :    3.481Type :   Horizontal
    Height diff. (m) : -0.488Type :   Spirit Levelling
    RM to GL (m) :   0.400
    RM Position Information** Warning: RM coordinates should be verified prior to use
    ** Coordinates are calculated from reference observations
    ** Coordinate accuracies commensurate with related observations
    RM1
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 08 50.54694Easting (m) :   398207.791
    Longitude :  E 115 55 14.24042Northing (m) :  6442718.582
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   59807.346
    Northing (m) :  241804.137
    Height Information
    Vertical datum :   AHD71
    Height (m) :         27.107
    RM2
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 08 50.57733Easting (m) :   398209.808
    Longitude :  E 115 55 14.31702Northing (m) :  6442717.666
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   59809.353
    Northing (m) :  241803.199
    Height Information
    Vertical datum :   AHD71
    Height (m) :         27.063
    RM3
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 08 50.50357Easting (m) :   398212.243
    Longitude :  E 115 55 14.41084Northing (m) :  6442719.962
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   59811.814
    Northing (m) :  241805.468
    Height Information
    Vertical datum :   AHD71
    Height (m) :         26.726
    RM4
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 08 50.42530Easting (m) :   398208.227
    Longitude :  E 115 55 14.25849Northing (m) :  6442722.332
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   59807.824
    Northing (m) :  241807.883
    Height Information
    Vertical datum :   AHD71
    Height (m) :         26.708
    Cadastral Connection Fieldbooks
    No Fieldbooks for this mark
    Special Notes
    No Special Notes for this mark