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    SSM     DONGARA 38
    Alternate names : JP 4278 Map ref.: DONGARA SH50-5
    APREF/NGCA codes: Database number : 100421
    Stamp name:      DON38 Date established :   01/01/1977
    Physical status : located (Hille Thompson & Delfos) Phys. status date :  22/07/2010
    Physical type :    brass plaqueHatch cover type : none
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 29 02 50.15213Easting (m) :   339003.165
    Longitude :  E 115 20 47.12389Northing (m) :  6785649.674
    Convergence :       -0 48 10.93
    Point scale factor : 0.99991986
    Coordinate date :       21/03/2022
    Horizontal method :   Geodetic-TerrestrialCadastral connection : Exists
    Relative horiz. accuracy :       70ppm ** 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) : 0.019
    Azimuth of semi-major axis (deg) : 8 12 22
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         268.058Height date :          16/11/2004
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : 242.814N-Value (m) :          -25.244
    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
    REDPEG Phys. status : established Date :   01/08/1979
    Phys. type :    wooden pegSet in : ground
    Azimuth :           58 34 0Type :   True azimuth
    Distance (m) :    30.310Type :   Horizontal
    Height diff. (m) : NoneType :   
    RM to GL (m) :   None
    RM1 Phys. status : located (Scanlan Surveys Pty Ltd.) Date :   06/11/2007
    Phys. type :    brass rodSet in : concrete
    Azimuth :           222 56 25Type :   True azimuth
    Distance (m) :    8.685Type :   Horizontal
    Height diff. (m) : -0.260Type :   Spirit Levelling
    RM to GL (m) :   None
    RM2 Phys. status : located (Scanlan Surveys Pty Ltd.) Date :   06/11/2007
    Phys. type :    brass rodSet in : concrete
    Azimuth :           342 56 55Type :   True azimuth
    Distance (m) :    9.454Type :   Horizontal
    Height diff. (m) : -0.285Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : located (Scanlan Surveys Pty Ltd.) Date :   06/11/2007
    Phys. type :    brass rodSet in : concrete
    Azimuth :           101 59 25Type :   True azimuth
    Distance (m) :    9.624Type :   Horizontal
    Height diff. (m) : -0.117Type :   Spirit Levelling
    RM to GL (m) :   None
    RM4 Phys. status : located Date :   12/09/1991
    Phys. type :    steel rodSet in : concrete
    Azimuth :           167 6 5Type :   True azimuth
    Distance (m) :    4.831Type :   Horizontal
    Height diff. (m) : -0.232Type :   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
    REDPEG
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 29 02 49.63872Easting (m) :   339028.801
    Longitude :  E 115 20 48.07982Northing (m) :  6785665.841
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM1
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 29 02 50.35864Easting (m) :   338997.338
    Longitude :  E 115 20 46.90520Northing (m) :  6785643.234
    Height Information
    Vertical datum :   AHD71
    Height (m) :         267.798
    RM2
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 29 02 49.85856Easting (m) :   339000.266
    Longitude :  E 115 20 47.02142Northing (m) :  6785658.672
    Height Information
    Vertical datum :   AHD71
    Height (m) :         267.773
    RM3
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 29 02 50.21707Easting (m) :   339012.605
    Longitude :  E 115 20 47.47186Northing (m) :  6785647.807
    Height Information
    Vertical datum :   AHD71
    Height (m) :         267.941
    RM4
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 29 02 50.30508Easting (m) :   339004.309
    Longitude :  E 115 20 47.16375Northing (m) :  6785644.981
    Height Information
    Vertical datum :   AHD71
    Height (m) :         267.826
    Cadastral Connection Fieldbooks
    A.G.THOMPSON 81
    LG 105276
    LG 114319
    Special Notes
    Unknown DateSee also DON38 PSM2.Dongara 38 is also a Bureau of Mineral Resources gravity station 8090.0420. DON38 is an Australian Fiducial 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     DONGARA 38
    Alternate names : JP 4278 Map ref.: DONGARA SH50-5
    APREF/NGCA codes: Database number : 100421
    Stamp name:      DON38 Date established :   01/01/1977
    Physical status : located (Hille Thompson & Delfos) Phys. status date :  22/07/2010
    Physical type :    brass plaqueHatch cover type : none
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 29 02 50.20040Easting (m) :   339002.162
    Longitude :  E 115 20 47.08606Northing (m) :  6785648.174
    Convergence :       -0 48 10.95
    Point scale factor : 0.99991986
    Coordinate date :       12/05/2011
    Horizontal method :   Geodetic-TerrestrialCadastral connection : Exists
    Relative horiz. accuracy :       5ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.004 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.004
    Semi-minor axis (m) : 0.003
    Azimuth of semi-major axis (deg) : 17 0 0
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         268.058Height date :          16/11/2004
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : 242.881N-Value (m) :          -25.177
    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
    REDPEG Phys. status : established Date :   01/08/1979
    Phys. type :    wooden pegSet in : ground
    Azimuth :           58 34 0Type :   True azimuth
    Distance (m) :    30.310Type :   Horizontal
    Height diff. (m) : NoneType :   
    RM to GL (m) :   None
    RM1 Phys. status : located (Scanlan Surveys Pty Ltd.) Date :   06/11/2007
    Phys. type :    brass rodSet in : concrete
    Azimuth :           222 56 25Type :   True azimuth
    Distance (m) :    8.685Type :   Horizontal
    Height diff. (m) : -0.260Type :   Spirit Levelling
    RM to GL (m) :   None
    RM2 Phys. status : located (Scanlan Surveys Pty Ltd.) Date :   06/11/2007
    Phys. type :    brass rodSet in : concrete
    Azimuth :           342 56 55Type :   True azimuth
    Distance (m) :    9.454Type :   Horizontal
    Height diff. (m) : -0.285Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : located (Scanlan Surveys Pty Ltd.) Date :   06/11/2007
    Phys. type :    brass rodSet in : concrete
    Azimuth :           101 59 25Type :   True azimuth
    Distance (m) :    9.624Type :   Horizontal
    Height diff. (m) : -0.117Type :   Spirit Levelling
    RM to GL (m) :   None
    RM4 Phys. status : located Date :   12/09/1991
    Phys. type :    steel rodSet in : concrete
    Azimuth :           167 6 5Type :   True azimuth
    Distance (m) :    4.831Type :   Horizontal
    Height diff. (m) : -0.232Type :   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
    REDPEG
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 29 02 49.68699Easting (m) :   339027.798
    Longitude :  E 115 20 48.04199Northing (m) :  6785664.340
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM1
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 29 02 50.40691Easting (m) :   338996.336
    Longitude :  E 115 20 46.86737Northing (m) :  6785641.734
    Height Information
    Vertical datum :   AHD71
    Height (m) :         267.798
    RM2
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 29 02 49.90683Easting (m) :   338999.264
    Longitude :  E 115 20 46.98359Northing (m) :  6785657.172
    Height Information
    Vertical datum :   AHD71
    Height (m) :         267.773
    RM3
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 29 02 50.26534Easting (m) :   339011.603
    Longitude :  E 115 20 47.43403Northing (m) :  6785646.307
    Height Information
    Vertical datum :   AHD71
    Height (m) :         267.941
    RM4
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 29 02 50.35335Easting (m) :   339003.306
    Longitude :  E 115 20 47.12592Northing (m) :  6785643.481
    Height Information
    Vertical datum :   AHD71
    Height (m) :         267.826
    Cadastral Connection Fieldbooks
    A.G.THOMPSON 81
    LG 105276
    LG 114319
    Special Notes
    Unknown DateSee also DON38 PSM2.Dongara 38 is also a Bureau of Mineral Resources gravity station 8090.0420. DON38 is an Australian Fiducial Mark