MALE 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               : MALE
   Site DOMES number       : 22901
   Host agency             : Department of Meteorology
   City                    : Male Airport
   State or province       : Hulhule island
   Country                 : MALDIVES
   Tectonic plate (PB2002) : India
   Geological information  : 
                             
   Geographical coordinates (ITRF) : 
          North Latitude   :  4 deg 11' 34''
          East Longitude   : 73 deg 31' 40''
          Ellipsoid height :  -92 m
   Approximate altitude    :    2 m

2. DORIS antenna and reference point information

2.1
   Four character ID        : MALB
   Antenna model            : Starec 52291 type
   Antenna serial number    : 113
   IERS DOMES number        : 22901S002
   CNES/IGN number          : 229011
   CTDP number              : 248
   Date installed (dd/mm/yy): 15/01/2005
   Date removed (dd/mm/yy)  : 
   Antenna support type     : 30 cm sided very rigid metal tower, 2 m high
   Installed on             : Reinforced concrete block, 0.9 m sided, 1 m deep
   Height above ground mark : 2.451 m
   Ground mark type         : Steel bolt, 23 mm diameter
   Ground mark DOMES number : 22901
   Notes                    : 


3. DORIS beacons information

3.1
   Beacon serial number        : 28 19 045
   Beacon model                : 3.0
   USO serial number           : 3.211
   4 Char. ID of the REF point : MALB
   Date installed (dd/mm/yy)   : 13/01/2005
   Date removed (dd/mm/yy)     : 


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

   Solution : ITRF2005 (tie to GPS "MALD")
   Epoch    : 2000.0

   X = 1803683.432 m     Y = 6100015.193 m     Z = 463192.777 m
   Sig X = 0.003 m        Sig Y = 0.006 m       Sig Z = 0.003 m

   VX = -0.0493 m/y        VY = 0.0098 m/y       VZ = 0.0353 m/y
   Sig VX = .0005 m/y    Sig VY = .0015 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 : 22901S001
   Notes                 : IGS station MALD

6. Tide gauge co-location information

6.1
   Name         : Male
   Location     : Male airport
   GLOSS number : 28
   Distance     : 477 m
   Notes        : 

7. Local site ties

7.1
   Point description      : IGS station MALD
   DOMES number           : 22901S001

   Differential components from the current DORIS ref. point (MALB)
   to the above point (in the ITRS) :
                   dX (m) : 174.769
                   dY (m) : -+
                   dZ (m) : -443.234
   Accuracy (m)           : 0.002
   Date measured          : January 2005
   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          : 0.9 m below the current DORIS ref. point (MALB)
   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