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    SSM     CM 2
    Alternate names : Map ref.: QUOBBA SG49-4
    APREF/NGCA codes: Database number : 100911
    Stamp name:      Date established :   01/01/1962
    Physical status : located (Morris Heyhoe & Richards) Phys. status date :  17/06/1999
    Physical type :    beaconHatch cover type : unknown
    Mark set in :        unknownAccess type : unknown
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             49
    Latitude :     S 24 49 41.70228Easting (m) :   796962.017
    Longitude :  E 113 56 16.57417Northing (m) :  7250870.765
    Convergence :       1 14 4.36
    Point scale factor : 1.00068925
    MGA2020 Overlap Coordinates
    Zone :             50
    Easting (m) :   190483.949
    Northing (m) :  7250594.497
    Convergence :       -1 17 12.43
    Point scale factor : 1.00078331
    Coordinate date :       18/06/2019
    Horizontal method :   Geodetic-TerrestrialCadastral connection : No
    Relative horiz. accuracy :       20ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.21 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.229
    Semi-minor axis (m) : 0.185
    Azimuth of semi-major axis (m) : 143 44 50
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - CARN2020Carnarvon Grid 2020
    Easting (m) :   77422.748
    Northing (m) :  302949.130
    Convergence :       0 6 50.07
    Point scale factor : 1.00000724
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         32Height date :          04/05/2000
    Established by :  unknownState :                    Provisional
    Vertical method : Vertical AnglesVertical accuracy : 1.5m
    Derived GDA2020 ellipsoidal height (m) : 11.625N-Value (m) :          -20.375
    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 Date :   17/06/1999
    Phys. type :    unknownSet in : concrete
    Azimuth :           357 57 38Type :   True azimuth
    Distance (m) :    5.170Type :   Horizontal
    Height diff. (m) : -0.701Type :   Spirit Levelling
    RM to GL (m) :   None
    RM2 Phys. status : located Date :   17/06/1999
    Phys. type :    unknownSet in : concrete
    Azimuth :           72 34 32Type :   True azimuth
    Distance (m) :    7.544Type :   Horizontal
    Height diff. (m) : -0.777Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : located Date :   17/06/1999
    Phys. type :    unknownSet in : concrete
    Azimuth :           267 35 41Type :   True azimuth
    Distance (m) :    8.270Type :   Horizontal
    Height diff. (m) : -0.801Type :   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 :             49
    Latitude :     S 24 49 41.53436Easting (m) :   796961.944
    Longitude :  E 113 56 16.56762Northing (m) :  7250875.938
    MGA2020 Overlap Coordinates
    Zone :             50
    Easting (m) :   190483.649
    Northing (m) :  7250599.663
    Project Grid - CARN2020Carnarvon Grid 2020
    Easting (m) :   77422.574
    Northing (m) :  302954.297
    Height Information
    Vertical datum :   AHD71
    Height (m) :         31.299
    RM2
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             49
    Latitude :     S 24 49 41.62886Easting (m) :   796969.267
    Longitude :  E 113 56 16.83050Northing (m) :  7250872.870
    MGA2020 Overlap Coordinates
    Zone :             50
    Easting (m) :   190491.100
    Northing (m) :  7250596.919
    Project Grid - CARN2020Carnarvon Grid 2020
    Easting (m) :   77429.950
    Northing (m) :  302951.375
    Height Information
    Vertical datum :   AHD71
    Height (m) :         31.223
    RM3
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             49
    Latitude :     S 24 49 41.71356Easting (m) :   796953.743
    Longitude :  E 113 56 16.27992Northing (m) :  7250870.596
    MGA2020 Overlap Coordinates
    Zone :             50
    Easting (m) :   190475.690
    Northing (m) :  7250593.964
    Project Grid - CARN2020Carnarvon Grid 2020
    Easting (m) :   77414.484
    Northing (m) :  302948.799
    Height Information
    Vertical datum :   AHD71
    Height (m) :         31.199
    Cadastral Connection Fieldbooks
    No Fieldbooks for this mark
    Special Notes
    Unknown DateHorizontal Angles Obs.at CM2 on ground, remote lights req'd on towers at CM1 & CM3. GM is 4.7m above & 400m from BM ZG9.
    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     CM 2
    Alternate names : Map ref.: QUOBBA SG49-4
    APREF/NGCA codes: Database number : 100911
    Stamp name:      Date established :   01/01/1962
    Physical status : located (Morris Heyhoe & Richards) Phys. status date :  17/06/1999
    Physical type :    beaconHatch cover type : unknown
    Mark set in :        unknownAccess type : unknown
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             49
    Latitude :     S 24 49 41.75040Easting (m) :   796960.942
    Longitude :  E 113 56 16.53705Northing (m) :  7250869.306
    Convergence :       1 14 4.35
    Point scale factor : 1.00068924
    MGA94 Overlap Coordinates
    Zone :             50
    Easting (m) :   190482.940
    Northing (m) :  7250592.993
    Convergence :       -1 17 12.44
    Point scale factor : 1.00078332
    Coordinate date :       05/05/2000
    Horizontal method :   Geodetic-TerrestrialCadastral connection : No
    Relative horiz. accuracy :       15ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.14 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.172
    Semi-minor axis (m) : 0.077
    Azimuth of semi-major axis (m) : 79 0 0
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - CARN94Carnarvon Grid 1994
    Easting (m) :   77421.702
    Northing (m) :  202947.651
    Convergence :       0 6 50.05
    Point scale factor : 1.00000724
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         32Height date :          04/05/2000
    Established by :  unknownState :                    Provisional
    Vertical method : Vertical AnglesVertical accuracy : 1.5m
    Derived GDA94 ellipsoidal height (m) : 11.685N-Value (m) :          -20.315
    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 Date :   17/06/1999
    Phys. type :    unknownSet in : concrete
    Azimuth :           357 57 38Type :   True azimuth
    Distance (m) :    5.170Type :   Horizontal
    Height diff. (m) : -0.701Type :   Spirit Levelling
    RM to GL (m) :   None
    RM2 Phys. status : located Date :   17/06/1999
    Phys. type :    unknownSet in : concrete
    Azimuth :           72 34 32Type :   True azimuth
    Distance (m) :    7.544Type :   Horizontal
    Height diff. (m) : -0.777Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : located Date :   17/06/1999
    Phys. type :    unknownSet in : concrete
    Azimuth :           267 35 41Type :   True azimuth
    Distance (m) :    8.270Type :   Horizontal
    Height diff. (m) : -0.801Type :   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 :             49
    Latitude :     S 24 49 41.58248Easting (m) :   796960.870
    Longitude :  E 113 56 16.53050Northing (m) :  7250874.479
    MGA94 Overlap Coordinates
    Zone :             50
    Easting (m) :   190482.639
    Northing (m) :  7250598.158
    Project Grid - CARN94Carnarvon Grid 1994
    Easting (m) :   77421.529
    Northing (m) :  202952.819
    Height Information
    Vertical datum :   AHD71
    Height (m) :         31.299
    RM2
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             49
    Latitude :     S 24 49 41.67698Easting (m) :   796968.192
    Longitude :  E 113 56 16.79338Northing (m) :  7250871.411
    MGA94 Overlap Coordinates
    Zone :             50
    Easting (m) :   190490.090
    Northing (m) :  7250595.415
    Project Grid - CARN94Carnarvon Grid 1994
    Easting (m) :   77428.905
    Northing (m) :  202949.896
    Height Information
    Vertical datum :   AHD71
    Height (m) :         31.223
    RM3
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             49
    Latitude :     S 24 49 41.76168Easting (m) :   796952.668
    Longitude :  E 113 56 16.24280Northing (m) :  7250869.137
    MGA94 Overlap Coordinates
    Zone :             50
    Easting (m) :   190474.680
    Northing (m) :  7250592.460
    Project Grid - CARN94Carnarvon Grid 1994
    Easting (m) :   77413.439
    Northing (m) :  202947.321
    Height Information
    Vertical datum :   AHD71
    Height (m) :         31.199
    Cadastral Connection Fieldbooks
    No Fieldbooks for this mark
    Special Notes
    Unknown DateHorizontal Angles Obs.at CM2 on ground, remote lights req'd on towers at CM1 & CM3. GM is 4.7m above & 400m from BM ZG9.