Network

   EVEREST 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               : EVEREST
   Site DOMES number       : 21501
   Host agency             : EV-K2-CNR Committee
   City                    : Near the Everest base camp
   State or province       : 
   Country                 : NEPAL
   Tectonic plate (PB2002) : Eurasia
   Geological information  : 
                             
   Geographical coordinates (ITRF) : 
          North Latitude   :   27 deg 57' 29''
          East Longitude   :   86 deg 48' 47''
          Ellipsoid height : 4962 m
   Approximate altitude    : 5050 m

2. DORIS antenna and reference point information

2.1
   Four character ID        : EVEB
   Antenna model            : Starec 52290 type
   Antenna serial number    : 17
   IERS DOMES number        : 21501S001
   CNES/IGN number          : 215011
   CTDP number              : 28
   Date installed (dd/mm/yy): 22/05/1992
   Date removed (dd/mm/yy)  : 
   Antenna support type     : 0.3 metre tower
   Installed on             : Rock
   Height above ground mark : 0.732 m
   Ground mark type         : Brass plate mark
   Ground mark DOMES number : 21501M001
   Notes                    : 


3. DORIS beacons information

3.1
   Beacon serial number        : 86 33 028
   Beacon model                : 1.0
   USO serial number           : 1.511
   4 Char. ID of the REF point : EVEB
   Date installed (dd/mm/yy)   : 22/05/1992
   Date removed (dd/mm/yy)     : 10/06/1993

3.2
   Beacon serial number        : 86 33 048
   Beacon model                : 1.0
   USO serial number           : 1.647
   4 Char. ID of the REF point : EVEB
   Date installed (dd/mm/yy)   : 10/06/1993
   Date removed (dd/mm/yy)     : 01/06/2003

3.3
   Beacon serial number        : 99 04 129
   Beacon model                : 2.0
   USO serial number           : ???
   4 Char. ID of the REF point : EVEB
   Date installed (dd/mm/yy)   : 07/06/2003
   Date removed (dd/mm/yy)     : 27/09/2006

3.4
   Beacon serial number        : 99 04 115
   Beacon model                : 2.0
   USO serial number           : 3.119
   4 Char. ID of the REF point : EVEB
   Date installed (dd/mm/yy)   : 27/09/2006
   Date removed (dd/mm/yy)     : 20/10/2007

3.5
   Beacon serial number        : 36 90 068
   Beacon model                : 3.0
   USO serial number           : 3.504
   4 Char. ID of the REF point : EVEB
   Date installed (dd/mm/yy)   : 04/02/2008
   Date removed (dd/mm/yy)     : 


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

   Solution : ITRF2005
   Epoch    : 2000.0

   X = 313666.371 m     Y = 5633552.644 m     Z = 2974736.773 m
   Sig X = 0.006 m        Sig Y = 0.005 m       Sig Z = 0.003 m

   VX = -0.0344 m/y        VY = -0.0077 m/y       VZ = 0.0231 m/y
   Sig VX = .0011 m/y    Sig VY = .0008 m/y   Sig VZ = .0006 m/y

5. IERS co-location information

6. Tide gauge co-location information

7. Local site ties

7.1
   Point description      : Brass mark under DORIS antenna
   DOMES number           : 21501M001

   Differential components from the current DORIS ref. point (EVEB)
   to the above point (in the ITRS) :
                   dX (m) : -0.036
                   dY (m) : -0.646
                   dZ (m) : -0.343
   Accuracy (m)           : 0.01
   Date measured          : 
   Additional information : 

7.2
   Point description      : Mark Ev-K2 1991
   DOMES number           : 

   Differential components from the current DORIS ref. point (EVEB)
   to the above point (in the ITRS) :
                   dX (m) : 5.573
                   dY (m) : -28.819
                   dZ (m) : 120.734
   Accuracy (m)           : 0.01
   Date measured          : 
   Additional information : 

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          : 1.6 m above the current DORIS ref. point (EVEB)
   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