OWENGA DORIS site description form


0. Form

    Prepared by   : SIMB (DORIS installation and maintenance department)
    Date prepared : 01/03/2017
    Report type   : NEW


1. Site location information

    Site name              : OWENGA
    Site DOMES number      : 50253
    Host agency            : LINZ
    City                   : Owenga
    State or province      : Chatham Islands
    Country                : NEW ZEALAND
    Tectonic plate         : PCFC
    Geological information : red bluff tuff

    Geographical coordinates (ITRF) : 
        North Latitude       :   -44 deg  1' 31''
        East Longitude       :  -176 deg 22'  7''
        Ellipsoid height     :    23 m
        Approximate altitude :    15 m


2. DORIS antenna and reference point information

2.1
    Four character ID        : OWEC
    Antenna model            : Starec C type
    Antenna serial number    : 156
    IERS DOMES number        : 50253S001
    CNES/IGN number          : 502531
    DORIS SSALTO number      : 340
    Date installed (dd/mm/yy): 20/11/2014
    Date removed (dd/mm/yy)  : 07/03/2016
    Antenna support type     : 2 m high very rigid metal tower
    Installed on             : concrete pad
    Height above ground mark : 2.432 m
    Ground mark type         : brass mark
    Ground mark DOMES number : 50253M002
    Notes                    : 


3. DORIS beacons information

3.1
    Beacon serial number        : 3690075
    Beacon model                : 3.0
    USO serial number           : 3.528
    4 Char. ID of the REF point : OWEC
    Date installed (dd/mm/yy)   : 20/11/2014
    Date removed (dd/mm/yy)     : 24/11/2015

3.2
    Beacon serial number        : 2819055
    Beacon model                : 3.0
    USO serial number           : 3.350
    4 Char. ID of the REF point : OWEC
    Date installed (dd/mm/yy)   : 24/11/2015
    Date removed (dd/mm/yy)     : 07/03/2016


4. ITRF coordinates and velocities of the current DORIS ref. point (OWEC)

    Solution         : IGS08
    Epoch            : 2005.0 

    X = -4584328.558 m    Y = -290953.670 m    Z = -4410117.477 m
    Sig X = 0.001 m    Sig Y = 0.001 m    Sig Z = 0.001 m

    VX = -0.0273 m/y    VY = 0.0385 m/y    VZ = 0.0244 m/y
    Sig VX = 0.0003 m/y    Sig VY = 0.0003 m/y    Sig VZ = 0.0003 m/y


5. IERS colocation information

5.1
    Instrument type       : GNSS
    Status                : Permanent
    DOMES number of the
    instrument ref. point : 50253M001
    Notes                 : IGS station (OWNG)


6. Tide Gauge colocation information

6.1
    Name         : Owenga "CHIT"
    Location     : Owenga wharf
    GLOSS number : 
    Distance     : 75 m
    Notes        : Tie measured 11/2014


7. Local site ties

7.1
    Point description      : Mark under the DORIS antenna 
    DOMES number           : 50253M002
    Differential components from the current DORIS ref. point (OWEC)
    to the above point (in the ITRS) :
    dX (m)                 : 1.746
    dY (m)                 : 0.111
    dZ (m)                 : 1.690
    Accuracy (m)           : 0.001
    Date measured          : 29/11/2014
    Additional information : Survey by IGN-F

7.2
    Point description      : Permanent GNSS station IGS (OWNG)
    DOMES number           : 50253M001
    Differential components from the current DORIS ref. point (OWEC)
    to the above point (in the ITRS) :
    dX (m)                 : -14.393
    dY (m)                 : -11.579
    dZ (m)                 : 18.737
    Accuracy (m)           : 0.001
    Date measured          : 29/11/2014
    Additional information : Survey by IGN-F

7.3
    Point description      : Tide gauge: benchmark CHIT1
    DOMES number           : 
    Differential components from the current DORIS ref. point (OWEC)
    to the above point (in the ITRS) :
    dX (m)                 : -25.687
    dY (m)                 : -53.281
    dZ (m)                 : 46.068
    Accuracy (m)           : 0.001
    Date measured          : 29/11/2014
    Additional information : Survey by IGN-F

7.4
    Point description      : DORIS Starec antenna reference point (CHAB)
    DOMES number           : 50207S001
    Differential components from the current DORIS ref. point (OWEC)
    to the above point (in the ITRS) :
    dX (m)                 : -6317.869
    dY (m)                 : 15517.310
    dZ (m)                 : 5488.843
    Accuracy (m)           : 0.004
    Date measured          : 29/11/2014
    Additional information : Survey by IGN-F


8. Meteorological Instrumentation

8.1 Humidity sensor
    Model        : HMP45D
    Manufacturer : VAISALA
    Accuracy     : +/- 3 percents
    Notes        : 

8.2 Pressure sensor
    Model        : PTU200 class B
    Manufacturer : VAISALA
    Accuracy     : +/- 0.25 hPa
    Height       :  m below the current DORIS ref. point (OWEC)
    Notes        : long term stability = +/- 0.1 hPa/year

8.3 Temperature sensor
    Model        : HMP45D
    Manufacturer : VAISALA
    Accuracy     : +/- 0.5 deg C
    Notes        : 


9. DORIS network contacts

    Primary contact:

    Name            : Jerome SAUNIER
    Agency          : Institut Geographique National
    Mailing address : Service de Geodesie et Nivellement
                    : 73 avenue de Paris
                    : 94165 SAINT-MANDE Cedex    FRANCE
    Telephone       : + 33 1 43 98 83 63
    Fax             : + 33 1 43 98 84 50
    E-mail          : jerome (.) saunier (@) ign.fr

    Secondary contact:

    Name            : Francois BOLDO
    Agency          : Institut Geographique National
    Mailing address : CNES (DNO/SA/IS)
                    : 18 Avenue Edouard Belin
                    : 31401 TOULOUSE Cedex    FRANCE
    Telephone       : + 33 5 61 27 40 72
    Fax             : 
    E-mail          : simb (.) doris (@) cnes.fr