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    SSM     HAMERSLEY 85
    Alternate names : Map ref.: HAMERSLEY BG34 2.8
    APREF/NGCA codes: Database number : 104304
    Stamp name:      HAM85 Date established :   01/05/1978
    Physical status : located (Landgate) Phys. status date :  13/03/2018
    Physical type :    brass plaqueHatch cover type : concrete
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 50 04.80186Easting (m) :   383154.897
    Longitude :  E 115 45 54.76581Northing (m) :  6477225.778
    Convergence :       -0 39 4.99
    Point scale factor : 0.99976838
    Coordinate date :       13/08/2018
    Horizontal method :   Geodetic-TerrestrialCadastral connection : Exists
    Relative horiz. accuracy :       30ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.019 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.020
    Semi-minor axis (m) : 0.018
    Azimuth of semi-major axis (m) : 126 52 48
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   45129.255
    Northing (m) :  376482.714
    Convergence :       -0 1 37.71
    Point scale factor : 0.99999935
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         36.623Height date :          01/06/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : 3.635N-Value (m) :          -32.988
    Geoid model :         AusGeoid2020
    ** Derived GDA2020 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Mark to hatch cover :  
    Mark to ground level : 
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : located (Landgate) Date :   23/09/2011
    Phys. type :    spikeSet in : concrete
    Azimuth :           338 37 7Type :   True azimuth
    Distance (m) :    4.366Type :   Horizontal
    Height diff. (m) : -0.255Type :   Spirit Levelling
    RM to GL (m) :   None
    RM2 Phys. status : established Date :   01/05/1978
    Phys. type :    spikeSet in : concrete
    Azimuth :           78 12 46Type :   True azimuth
    Distance (m) :    3.616Type :   Horizontal
    Height diff. (m) : -0.215Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : destroyed (Landgate) Date :   23/09/2011
    Phys. type :    spikeSet in : bitumen
    Azimuth :           270 39 5Type :   True azimuth
    Distance (m) :    3.126Type :   Horizontal
    Height diff. (m) : -0.007Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM4 Phys. status : destroyed (Landgate) Date :   23/09/2011
    Phys. type :    spikeSet in : bitumen
    Azimuth :           324 53 31Type :   True azimuth
    Distance (m) :    4.665Type :   Horizontal
    Height diff. (m) : 0.035Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM5 Phys. status : located (Landgate) Date :   13/03/2018
    Phys. type :    masonary nailSet in : concrete
    Azimuth :           111 50 27Type :   True azimuth
    Distance (m) :    3.055Type :   Horizontal
    Height diff. (m) : 0.119Type :   Spirit Levelling
    RM to GL (m) :   None
    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 31 50 04.66987Easting (m) :   383153.260
    Longitude :  E 115 45 54.70528Northing (m) :  6477229.824
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   45127.662
    Northing (m) :  376486.779
    Height Information
    Vertical datum :   AHD71
    Height (m) :         36.368
    RM2
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 50 04.77788Easting (m) :   383158.428
    Longitude :  E 115 45 54.90043Northing (m) :  6477226.556
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   45132.795
    Northing (m) :  376483.454
    Height Information
    Vertical datum :   AHD71
    Height (m) :         36.408
    RM3
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 50 04.80071Easting (m) :   383151.772
    Longitude :  E 115 45 54.64694Northing (m) :  6477225.778
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   45126.130
    Northing (m) :  376482.748
    Height Information
    Vertical datum :   AHD71
    Height (m) :         36.616
    RM4
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 50 04.67796Easting (m) :   383152.172
    Longitude :  E 115 45 54.66378Northing (m) :  6477229.562
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   45126.571
    Northing (m) :  376486.529
    Height Information
    Vertical datum :   AHD71
    Height (m) :         36.658
    RM5
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 50 04.83876Easting (m) :   383157.745
    Longitude :  E 115 45 54.87365Northing (m) :  6477224.674
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   45132.092
    Northing (m) :  376481.579
    Height Information
    Vertical datum :   AHD71
    Height (m) :         36.742
    Cadastral Connection Fieldbooks
    DOLA 89661
    LG 109533
    LG 112364
    R.J.KAY 5
    Special Notes
    Unknown DateRM4, HAM 85 & MS 5 are co-linear. RM 2, HAM 85 & HAM 31 are co-linear. HAM 85, RM1 & HAM 40 are co-linear. RM 3, HAM 85 & HAM 33 are co-linear.
    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     HAMERSLEY 85
    Alternate names : Map ref.: HAMERSLEY BG34 2.8
    APREF/NGCA codes: Database number : 104304
    Stamp name:      HAM85 Date established :   01/05/1978
    Physical status : located (Landgate) Phys. status date :  13/03/2018
    Physical type :    brass plaqueHatch cover type : concrete
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 50 04.84972Easting (m) :   383153.891
    Longitude :  E 115 45 54.72689Northing (m) :  6477224.292
    Convergence :       -0 39 5.01
    Point scale factor : 0.99976838
    Coordinate date :       09/10/2000
    Horizontal method :   Geodetic-TerrestrialCadastral connection : Exists
    Relative horiz. accuracy :       20ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.012 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.013
    Semi-minor axis (m) : 0.011
    Azimuth of semi-major axis (m) : 114 0 0
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   45128.233
    Northing (m) :  276481.239
    Convergence :       -0 1 37.73
    Point scale factor : 0.99999935
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         36.623Height date :          01/06/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : 3.696N-Value (m) :          -32.927
    Geoid model :         AUSGeoid09 V1.01
    ** Derived GDA94 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Mark to hatch cover :  
    Mark to ground level : 
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : located (Landgate) Date :   23/09/2011
    Phys. type :    spikeSet in : concrete
    Azimuth :           338 37 7Type :   True azimuth
    Distance (m) :    4.366Type :   Horizontal
    Height diff. (m) : -0.255Type :   Spirit Levelling
    RM to GL (m) :   None
    RM2 Phys. status : established Date :   01/05/1978
    Phys. type :    spikeSet in : concrete
    Azimuth :           78 12 46Type :   True azimuth
    Distance (m) :    3.616Type :   Horizontal
    Height diff. (m) : -0.215Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : destroyed (Landgate) Date :   23/09/2011
    Phys. type :    spikeSet in : bitumen
    Azimuth :           270 39 5Type :   True azimuth
    Distance (m) :    3.126Type :   Horizontal
    Height diff. (m) : -0.007Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM4 Phys. status : destroyed (Landgate) Date :   23/09/2011
    Phys. type :    spikeSet in : bitumen
    Azimuth :           324 53 31Type :   True azimuth
    Distance (m) :    4.665Type :   Horizontal
    Height diff. (m) : 0.035Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM5 Phys. status : located (Landgate) Date :   13/03/2018
    Phys. type :    masonary nailSet in : concrete
    Azimuth :           111 50 27Type :   True azimuth
    Distance (m) :    3.055Type :   Horizontal
    Height diff. (m) : 0.119Type :   Spirit Levelling
    RM to GL (m) :   None
    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 31 50 04.71773Easting (m) :   383152.254
    Longitude :  E 115 45 54.66636Northing (m) :  6477228.339
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   45126.639
    Northing (m) :  276485.304
    Height Information
    Vertical datum :   AHD71
    Height (m) :         36.368
    RM2
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 50 04.82574Easting (m) :   383157.421
    Longitude :  E 115 45 54.86151Northing (m) :  6477225.071
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   45131.772
    Northing (m) :  276481.979
    Height Information
    Vertical datum :   AHD71
    Height (m) :         36.408
    RM3
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 50 04.84857Easting (m) :   383150.766
    Longitude :  E 115 45 54.60802Northing (m) :  6477224.292
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   45125.107
    Northing (m) :  276481.273
    Height Information
    Vertical datum :   AHD71
    Height (m) :         36.616
    RM4
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 50 04.72582Easting (m) :   383151.166
    Longitude :  E 115 45 54.62486Northing (m) :  6477228.077
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   45125.548
    Northing (m) :  276485.054
    Height Information
    Vertical datum :   AHD71
    Height (m) :         36.658
    RM5
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 50 04.88662Easting (m) :   383156.739
    Longitude :  E 115 45 54.83473Northing (m) :  6477223.188
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   45131.069
    Northing (m) :  276480.104
    Height Information
    Vertical datum :   AHD71
    Height (m) :         36.742
    Cadastral Connection Fieldbooks
    DOLA 89661
    LG 109533
    LG 112364
    R.J.KAY 5
    Special Notes
    Unknown DateRM4, HAM 85 & MS 5 are co-linear. RM 2, HAM 85 & HAM 31 are co-linear. HAM 85, RM1 & HAM 40 are co-linear. RM 3, HAM 85 & HAM 33 are co-linear.