Subject: [IGSMAIL-2567] GOPE receiver and antenna changed
From: J. Kostelecky, J. Simek
Date: Thu, 4 Nov 1999 7:49:02 PST

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IGS Electronic Mail      Thu Nov  4  7:49:02 PST 1999      Message Number 2567
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Author: J. Kostelecky, J. Simek
Subject: GOPE receiver and antenna changed

Site Name                : Pecny, Ondrejov / CZ
Four Character ID        : GOPE
IERS DOMES Number        : 11502M002
CDP Number               : none

The receiver Trimble 4000SSE with antenna Trimble 4000ST L1/L2 Geodetic 
(TRM14532.00) was replaced with the new receiver Ashtech Z18 with antenna
Ashtech Choke Ring GG P/N 701073 REV 3 (ASH701073.3     SNOW - Choke Ring 
with original Ashtech radome).

End of Trimble receiver operation   : 04-NOV-1999 12:00 UT
Start of Ashtech receiver operation : 04-NOV-1999 13:00 UT

The ARP of the new antenne is on the same point as the ARP of the old antenne.

For IGS & EUREF we will deliver pure GPS NAVSTAR data, for IGEX campaign we
produce mixed GPS NAVSTAR & GLONASS data. Along with new data (sending 
algorithm) we provide meteorological data from the newly installed 
meteorological sensors.

The update site information form was sent to IGSCB and is appended.

Data distribution schedule is as follows:

file                     data center

daily pure GPS data:
GOPEddd0.yyD             LDC Graz -> RDC BKG -> ...
GOPEddd0.yyN             LDC Graz -> RDC BKG -> ...
GOPEddd0.yyM             LDC Graz -> RDC BKG -> ...

hourly pure GPS data:
GOPEdddh.yyD             LDC Graz -> RDC BKG -> ...
GOPEdddh.yyN             LDC Graz -> RDC BKG -> ...
GOPEdddh.yyM             LDC Graz -> RDC BKG -> ...
GOPEdddh.FLG             LDC Graz ...

daily mixed GPS&GLONASS data:
GOPEddd0.yyD             RDC BKG -> ...
GOPEddd0.yyN             RDC BKG -> ...
GOPEddd0.yyG             RDC BKG -> ...

                                 Best regards
                                          Jakub Kostelecky, Jaroslav Simek

     GOPE Site Information Form
     International GPS Service for Geodynamics

0.   Form

     Prepared by (full name)  : Jakub Kostelecky & Georgij Karsky
     Date Prepared            : 03-NOV-1999
     Report Type              : UPDATE
     Prepared Using           : MSDOS, The Norton Editor

1.   Site Identification of the GPS Monument

     Site Name                : Pecny, Ondrejov / CZ
     Four Character ID        : GOPE
     Monument Inscription     :
     IERS DOMES Number        : 11502M002
     CDP Number               :
     Date Installed           : 13-JUN-1995 00:00 UT
     Geologic Characteristic  : BEDROCK
       Bedrock Type           : METAMORPHIC
       Bedrock Condition      : JOINTED
       Fracture Spacing       : 50-200 cm
       Notes                  :
     Additional Information   : Geodynamical Pillar above the Roof
                              : of the Observatory Main Building
                              : Main Building is founded on the bedrock

2.   Site Location Information

     City or Town             : Ondrejov
     State or Province        : Bohemia
     Country                  : Czech Republic
     Tectonic Plate           : Eura
     Approximate Position
       X coordinate (m)       : 3979316.272
       Y coordinate (m)       : 1050312.347
       Z coordinate (m)       : 4857067.008
       Latitude (deg)         : 49.91370 N
       Longitude (deg)        : 14.78562 E
       Elevation (m)          : 592.594
     Additional Information   : Ellipsoidal height
                              : Approximate coordinates referenced
                              : to ITRF97

3.   GPS Receiver Information

3.1  Receiver Type            : TRIMBLE 4000SSE
     Serial Number            : 2185  (3301A02185)
     Firmware Version         : 5.52
     Date Installed           : 13-MAY-1995 00:00 UT
     Date Removed             : 10-JUN-1997
     Additional Information   :

3.2  Receiver Type            : TRIMBLE 4000ST
     Serial Number            : 1504  (3108A01504A)
     Firmware Version         : 4.34
     Date Installed           : 11-JUN-1997
     Date Removed             : 19-JUN-1997  19:15 UT
     Additional Information   : Actually the receiver GEOTRACER 100
                              : (licensed Trimble), produced by
                              : Swedish firm Geodimeter, technical
                              : specifications of which are identical
                              : with TRIMBLE 4000ST

3.3  Receiver Type            : TRIMBLE 4000SSE
     Serial Number            : 2185  (3301A02185)
     Firmware Version         : 7.24
     Date Installed           : 20-JUN-1997 00:00 UT
     Date Removed             : 04-NOV-1999 12:00 UT
     Additional Information   : New firmware 20-JUN-1997

3.4  Receiver Type            : ASHTECH Z18
     Serial Number            : 000113  (ZX00113)
     Firmware Version         : 0064    ZT15
     Date Installed           : 04-NOV-1999 13:00 UT
     Date Removed             :
     Additional Information   : 

4.   GPS Antenna Information

4.1  Antenna Type             : TRM14532.00
     Serial Number            : 66682 (3250A66682)
     Antenna Height (m)       : 0.0464
     Antenna Reference Point  : ARP     (=BPA see Fig.)
     Degree Offset from North : 
     Antenna Radome Type      : none
     Date Installed           : 13-MAY-1995 00:00 UT
     Date Removed             : 04-NOV-1999 12:00 UT
     Additional Information   : Before 25-JUN-1999 antenna type in RINEX
                              : files was marked as 4000ST L1/L2 GEOD

4.2  Antenna Type             : ASH701073.3     SNOW
     Serial Number            : 000110  (CRG1998380110)
     Antenna Height (m)       : 0.0464
     Antenna Reference Point  : ARP     (=BPA see Fig.)
     Degree Offset from North : 0
     Antenna Radome Type      : SNOW (Ashtech original radome)
     Date Installed           : 04-NOV-1999 13:00 UT
     Date Removed             : 
     Additional Information   : Antenna manufacture label:
                              : Model: Choke Ring Antenna GG
                              : Part No: 701073   Rev: 3
                              : Serial No: CRG1998380110

5.   Local Site Ties

5.1  Monument Name            : EUREF 0209
     Site Ref CDP Number      :
     Site Ref Domes Number    :
     Differential Components from GPS Mark to Site Reference (ITRS)
       dx (m)                 : -65.9815
       dy (m)                 : +84.6572
       dz (m)                 : +33.1807
    Accuracy (mm)             : 1
     Date Measured            : 01-APR-1994 00:00 UT
     Additional Information   : The vector is referred to the reference point
                              : of GOPE (mark on the top of the concrete
                              : pillar) i.e. dx = x (0209) - x (GOPE).
                              : EUREF 0209 is identical with triangul. point

6.   Frequency Standard

6.1  Standard Type            : INTERNAL
       Frequency              :
       Effective Dates        : 1995 - now
       Notes                  :

7.   Collocation Information

7.1  Instrumentation Type     : Tidal Gravimeter Askania GS15 (No.228)
       Status                 : permanent
       Effective Dates        : 1975 - now
       Notes                  : Permanent Earth Tidal Station

7.2  Instrumentation Type     : Absolute Gravity Measurements
       Status                 : epoch
       Effective Dates        : 1978 - now
       Notes                  : Epoch measurements in 1978, 1983, 1992, 1993,
                              : 2x 1995, 1996, 1997, 2x 1998

7.3  Instrumentation Type     : Circumzenithal VUGTK 100/1000
       Status                 : permanent
       Effective Dates        : 1970 - now
       Notes                  : Visual astrometry

8.   Meteorological Instrumentation

8.1  Humidity Sensor Model    : HG421.65
       Manufacturer           : COMET, Czech Republic
       Data Frequency         : 1 min
       Accuracy (% rel h)     : 3.0 % rel h
       Effective Dates        : 1999 - now
       Notes                  : older sensor since 1996

8.2  Pressure Sensor Model    : TMAG 518 R3F
       Manufacturer           : CRESSTO, Roznov p. R., Czech Republic
       Data Frequency         : 1 min
       Accuracy (mbar)        : 0.2 hPa
       Height Diff to GPS (m) : 0.19 m under GPS ref. point 11502M002
       Effective Dates        : 1999 - now
       Notes                  : older sensor since 1990

8.3  Temperature Sensor Model : NS520.65-120
       Manufacturer           : COMET, Czech Republic
       Data Frequency         : 1 min
       Accuracy (deg C)       : 0.1 deg C
       Effective Dates        : 1999 - now
       Notes                  : older sensor since 1996

8.4  Water Vapor Radiometer   : none
       Manufacturer           :
       Distance to GPS (m)    :
       Elev Diff to GPS (m)   :
       Effective Dates        :
       Notes                  :

8.5  Other Instrumentation    : none

9.   On-Site, Point of Contact Agency Information

     Agency                   : Research Institute of Geodesy
     Mailing Address          : Geodetic Observatory Pecny
                              : CZ-25165 Ondrejov 244, Czech Republic
     Primary Contact
       Contact Name           : Georgij Karsky , Jaroslav Simek
       Telephone (primary)    : ++420 204 649235
       Telephone (secondary)  :
       Fax                    : ++420 204 649236
       E-mail                 : [email-masked]
     Secondary Contact
       Contact Name           : Jakub Kostelecky
       Telephone (primary)    : ++420 204 649235
       Telephone (secondary)  :
       Fax                    : ++420 204 649236
       E-mail                 : [email-masked]
     Additional Information   :

10.  Responsible Agency (if different from 9.)

     Agency                   :
     Mailing Address          :
                              :
     Primary Contact
       Contact Name           :
       Telephone (primary)    :
       Telephone (secondary)  :
       Fax                    :
       E-mail                 :
     Secondary Contact
       Contact Name           :
       Telephone (primary)    :
       Telephone (secondary)  :
       Fax                    :
       E-mail                 :
     Additional Information   :

11.  More Information

     URL for More Information : http://pecny.asu.cas.cz/gopoc/gopegps.html
     Hardcopy on File
       Site Map               : Yes
       Site Diagram           : No
       Horizon Mask           : Yes
       Monument Description   : Yes
       Site Pictures          : Yes
     Additional Information   :

     Antenna Graphics with Dimensions

11.1 Antenna Dimensions  
     TRM14532.00 (former name 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

11.2 Antena Dimensions  
     ASH701073.3 SNOW  (= 701073 RADOME)

                        . --- .                           <--  0.420
                     .           .
                    /             \
                   .               .

                 /                   \
                .                     .

               /                       \
              .                         .

             /                           \
            .                             .

           /                               \
          .                                 .
                                    
         /                                   \
        .                                     .

       /                                       \
      .                                         .

     /                                           \
    .                                             .
                                           
   /                                               \
  .                      .---.                      .     <--  0.140
                       /       \
 +                   /     +     \                   +    <--  0.128  L2
 .                  |      +      |                  .    <--  0.110  L1
 |+-------------------------------------------------+|    <--  0.101  TCR
 .|                                                 |.
 ||                                                 ||
 .|                                                 |.
 +|                                                 |+
+-+-------------------------------------------------+-+   <--  0.038
+-------------------+-------------+-------------------+   <--  0.035  BCR
                    |             | 
                   =|             |  
                    +------x------+                       <--  0.000  ARP=BPA

                    <--  0.120  -->                                   Preamp
  <--                    0.360                    -->                 Ch.Ring
 <--                     0.374                     -->                Dome
<--                      0.380                      -->               Gr.Plate

11.3 Antenna Height (Ashtech)

                          . --- .                           <--  0.4664
                       .           .
                      /             \
                     .               .
  
                   /                   \
                  .                     .
  
                 /                       \
                .                         .
  
               /                           \
              .                             .
  
             /                               \
            .                                 .
                                      
           /                                   \
          .                                     .
  
         /                                       \
        .                                         .
  
       /                                           \
      .                                             .
                                             
     /                                               \
    .                      .---.                      .     <--  0.1864
                         /       \
   +                   /     +     \                   +    <--  0.1744 L2
   .                  |      +      |                  .    <--  0.1564 L1
   |+-------------------------------------------------+|    <--  0.1474 TCR
   .|                                                 |.
   ||                                                 ||
   .|                                                 |.
   +|                                                 |+
  +-+-------------------------------------------------+-+   <--  0.0844
  +-------------------+-------------+-------------------+   <--  0.0814 BCR
                      |             | 
                     =|             |  
                      +------x------+                       <--  0.0464 ARP
                          |     |
                          |     |
 Reference Point =>     +--- x ---+                         <--  0.0000
                        |         |
                        |         |
 Monument =>  +-----------------------------+
              |                             |
              |       Concrete Pillar       |
              |                             |
              |                             |
 Building => ------------------------------------

   ARP: Antenna Reference Point
   L1 : L1 Phase Center                   L2 : L2 Phase Center
   TCR: Top of Chokering                  BCR: Bottom of Chokering
   TGP: Top of Ground Plane               BGP: Bottom of Ground Plane
   TPA: Top of Preamplifier               BPA: Bottom of Preamplifier
   TOP: Top of Pole

12.  Local Events Possibly Affecting Computed Position

12.x  Date                    : (dd-MMM-yyyy hh:mm UT)
      Event                   : (multiple lines)

[Mailed From: "G.O.Pecny - Global" <[email-masked]>]