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     SITE INFORMATION FORM
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0. Form

        Prepared by (full name): Carme Parareda
                                 Geodetic Department (Institut Cartografic
                                 de Catalunya)
        Date                   : 8 May 1995
        Report type            : NEW
          (NEW or UPDATE)

1. Site Identification of the GPS monument

        Site Name              : Ebre
        4 char ID              : EBRE
        Monument Inscription   : 
        IERS DOMES Number      : 13410M001
        CDP Number             :
        Date                   : March 1992 
        Additional information : full operating capability since April 1994
                                 though we took part in several observation 
                                 campaigns previously.
                                 a former Station Report had been sent to 
                                 the IGS for the EPOCH'92 campaign.
                                 the monument is a 4.20m concrete pillar.
                                 the antenna is oriented to the True North.

2. Site Location

        City                   : Roquetes
        Country                : Spain
        Tectonic Plate         : Iberic plate - Eurasiatic plate
        Additional information : the site is placed in an astronomic 
                                 observatory, Observatori de l'Ebre
3. GPS Receiver

        Type                   : TRIMBLE 4000SSE
        Serial Number          : 3312A02805
        Firmware Version       : 6.01
        Date                   : 23 May 1994

   (use type names from attached list)

4. GPS Antenna

        Type                   : 4000ST L1/L2 GEOD
        Serial Number          : 00080026539
        Date                   : 4 February 1994

   (use type names from attached list)

        Vertical Antenna Height: 0.053m
        Antenna Reference Point: Bottom of preamplifier
        Date                   : 4 February 1994

5. Local Site Ties

Monument               CDP     DOMES             Components      Accuracy  Date
Name                   Number  Number       dX       dY      dZ     mm yy-mm-dd

SALOU (EUREF 076)                    -18176.157 56811.670 20034.209 82 94-03-18
Obs. de l'Ebre                           47.618   133.352   -61.570 .1 92-10-23

Differential coordinates from the GPS monument to the reference and
other monuments. The components are parallel to the XYZ-axes of the
global geocentric reference system ITRF (WGS-84).

"Accuracy" is estimated accuracy of local survey (millimeters).

6. Frequency standard

        H-maser /   /   Cesium /   /    Quartz /   /     Internal / X /
        Other (specify)        :
        Date                   :

        (Mark with 'X')

7. Collocation

        SLR    /   /    VLBI  /  /     DORIS  /  /     PRARE    /  /

        Other GEOPHYSICAL Instrumentation (specify) : 

        - digital ionosphere sounder DIGISONDE DGS 286 (P),
        - sets of seismographs for the 3 components (NS, EW, vertical), and
          for short and long period (P),
        - automatic magnetic stations ARGO and GEOMAG,classic register LaCour,
          and absolute QHM,BMA,Ruska,Di-flux,protons magnetometer (P),

        Other (specify)        :

        - equatorial telescope for sun observation
        - complete meteorological station

        (Mark with 'P' for permanent, 'M' for mobile collocation)

8. On-site, Point of Contact Agency Information

        Agency                 : Institut Cartografic de Catalunya
        Contact                : Carme Parareda
        Address                : Balmes 209-211, 08006 Barcelona

        Telephone              : 34-3-218 87 58
        E-mail                 : carmep@icc.es
        Fax                    : 34-3-218 89 59

9. Responsible Operations Agency
   (if different from item 8)

        Agency                 :

        Contact                :
        Address                :

        Telephone              :
        E-mail                 :
        Fax                    :

10. Please insert here the character graphics corresponding to the
antenna type. Check, complete or change if necessary the antenna
dimensions.


               Trimble: 4000ST L1/L2 GEOD

                       ----+----                          <--  0.070  L1
                    /      +      \                       <--  0.068  L2
++----------------+-----------------+-----------------++  <--  0.063  TGP
++---------------+-------------------+----------------++  <--  0.060  BGP
                 |                   |
                  |                 |
                   |               |
                    +------x------+                       <--  0.000  ARP=BPA

                    <--  0.140  -->                                   BPA
                 <--     0.155     -->                                TPA
 <--                     0.467                      -->               NOTCHES
<--                      0.483                       -->              EDGE


   ARP: Antenna Reference Point
   L1 : L1 Phase Center                   L2 : L2 Phase Center
   TGP: Top of Ground Plane               BGP: Bottom of Ground Plane
   TPA: Top of Preamplifier               BPA: Bottom of Preamplifier

It is intended to change the antenna model in a near future, at the begining
of 1995. The actual antenna will be replaced by a MicroPulse  L1/L2 GPS 
Surveying Antenna P/N 90LL12300.

11. Hard copy information

    The next items should be compiled and sent to the Central Bureau
(see original IGS Station Information Report, or contact the CB for
forms).

    Please mark 'X' if on file or date expected to be available.

        Site Map               : X
        Site Diagram           : X
        Horizon Mask           : X
        Monument description   : X
        Site pictures          : X