CHATHAM ISLAND DORIS site description form
0. Form
Prepared by : SIMB (DORIS installation and maintenance department)
Date prepared : 9/12/2008
Report type : UPDATE
1. Site location information
Site name : CHATHAM ISLAND
Site DOMES number : 50207
Host agency : MetService
City : Waitangi
State or province : Chatham Islands
Country : NEW ZEALAND
Tectonic plate (PB2002) : Pacific
Geological information :
Geographical coordinates (ITRF) :
North Latitude : -43 deg 57' 22''
East Longitude : -176 deg 33' 59''
Ellipsoid height : 61 m
Approximate altitude : 50 m
2. DORIS antenna and reference point information
2.1
Four character ID : CHAB
Antenna model : Starec 52291 type
Antenna serial number : 53
IERS DOMES number : 50207S001
CNES/IGN number : 502072
CTDP number : 86
Date installed (dd/mm/yy): 28/02/1999
Date removed (dd/mm/yy) : 27/11/2001
Antenna support type : Guyed 2 metre tower
Installed on : Concrete pad
Height above ground mark : 2.430 m
Ground mark type : Domed brass mark 12 mm diameter
Ground mark DOMES number : 50207M002
Notes :
2.2
Four character ID : CHAB
Antenna model : Starec 52291 type
Antenna serial number : 53
IERS DOMES number : 50207S001
CNES/IGN number : 502072
CTDP number : 86
Date installed (dd/mm/yy): 29/11/2001
Date removed (dd/mm/yy) : 09/01/2007
Antenna support type : 32 cm sided, 2 m high tower
Installed on : Concrete pad
Height above ground mark : 2.430 m
Ground mark type : Domed brass mark 12 mm diameter
Ground mark DOMES number : 50207M002
Notes : Support change, same location of the reference
: point within 3 mm. Upon removal, 2 GHz PC was
: 4 mm east, 2 mm south of ground mark
2.3
Four character ID : CHAB
Antenna model : Starec 52291 type
Antenna serial number : 132
IERS DOMES number : 50207S001
CNES/IGN number : 502072
CTDP number : 86
Date installed (dd/mm/yy): 09/01/2007
Date removed (dd/mm/yy) :
Antenna support type : 32 cm sided, 2 m high tower
Installed on : Concrete pad
Height above ground mark : 2.430 m
Ground mark type : Domed brass mark 12 mm diameter
Ground mark DOMES number : 50207M002
Notes : Antenna change.
: 2 GHz PC is 2 mm east, 1 mm north of ground mark
3. DORIS beacons information
3.1
Beacon serial number : 86 33 055
Beacon model : 1.0
USO serial number : 1.398
4 Char. ID of the REF point : CHAB
Date installed (dd/mm/yy) : 27/02/1999
Date removed (dd/mm/yy) : 23/12/1999
3.2
Beacon serial number : 86 33 031
Beacon model : 1.0
USO serial number : 1.459
4 Char. ID of the REF point : CHAB
Date installed (dd/mm/yy) : 23/12/1999
Date removed (dd/mm/yy) : 30/03/2000
3.3
Beacon serial number : 86 33 025
Beacon model : 1.0
USO serial number : 1.248
4 Char. ID of the REF point : CHAB
Date installed (dd/mm/yy) : 31/03/2000
Date removed (dd/mm/yy) : 31/10/2000
3.4
Beacon serial number : 86 33 027
Beacon model : 1.0
USO serial number : 4.1671
4 Char. ID of the REF point : CHAB
Date installed (dd/mm/yy) : 31/10/2000
Date removed (dd/mm/yy) : 01/06/2001
3.5
Beacon serial number : 86 33 035
Beacon model : 1.0
USO serial number : 3.210
4 Char. ID of the REF point : CHAB
Date installed (dd/mm/yy) : 06/07/2001
Date removed (dd/mm/yy) : 30/04/2005
3.6
Beacon serial number : 28 19 054
Beacon model : 3.0
USO serial number : 3.332
4 Char. ID of the REF point : CHAB
Date installed (dd/mm/yy) : 01/05/2005
Date removed (dd/mm/yy) :
4. ITRF coordinates and velocities of the current DORIS ref. point (CHAB)
Solution : ITRF2005
Epoch : 2000.0
X = -4590646.296 m Y = -275436.563 m Z = -4404628.768 m
Sig X = 0.001 m Sig Y = 0.001 m Sig Z = 0.001 m
VX = -0.0280 m/y VY = 0.0373 m/y VZ = 0.0219 m/y
Sig VX = .0003 m/y Sig VY = .0004 m/y Sig VZ = .0003 m/y
5. IERS co-location information
5.1
Instrument type : GPS
Status : Permanent
DOMES number of the
instrument ref. point : 50207M001
Notes :
6. Tide gauge co-location information
6.1
Name : Chatham Island
Location : Waitangi
GLOSS number : 128
Distance : 1.2 km
Notes : Tie measured 03/1999
7. Local site ties
7.1
Point description : Mark under the DORIS antenna
DOMES number : 50207M002
Differential components from the current DORIS ref. point (CHAB)
to the above point (in the ITRS) :
dX (m) : 1.746
dY (m) : 0.105
dZ (m) : 1.687
Accuracy (m) : 0.001
Date measured : Feb. 1999
Additional information : Survey by IGN-F
7.2
Point description : IGS monument CHAT
DOMES number : 50207M001
Differential components from the current DORIS ref. point (CHAB)
to the above point (in the ITRS) :
dX (m) : -24.690
dY (m) : -46.309
dZ (m) : 32.064
Accuracy (m) : 0.002
Date measured : Feb. 1999 & Nov. 2001
Additional information : Survey by IGN-F (1999) and IGNS-NZ (2001)
7.3
Point description : Waitangi wharf : mark near the tide gauge
DOMES number :
Differential components from the current DORIS ref. point (CHAB)
to the above point (in the ITRS) :
dX (m) : -726.123
dY (m) : -536.667
dZ (m) : 853.370
Accuracy (m) : 0.002
Date measured : Feb. 1999
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 mb
Height : 0.85 m below the current DORIS ref. point (CHAB)
Notes : long term stability = +/- 0.1 mb/year
8.3 Temperature sensor
Model : HMP45D
Manufacturer : VAISALA
Accuracy : +/- 0.5 deg C
Notes :
9. DORIS network contacts
Primary contact:
Name : Herve FAGARD
Agency : Institut Geographique National
Mailing address : Service de Geodesie et de Nivellement
: 2 Avenue PASTEUR
: 94165 SAINT-MANDE CEDEX FRANCE
Telephone : + 33 1 43 98 81 48
Fax : + 33 1 43 98 84 50
E-mail : herve (.) fagard (@) ign.fr
Secondary contact:
Name : Francois BOLDO
Agency : Institut Geographique National
Mailing address : CNES (DCT/ME/OT)
: 18 Avenue Edouard BELIN
: 31401 TOULOUSE Cedex FRANCE
Telephone : + 33 5 61 27 40 72
Fax : + 33 5 61 28 25 95
E-mail : Simb.Doris@cnes.fr
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