ERFU Site Information Form
     International GPS Service
     See Instructions at:
       ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt

0.   Form

     Prepared by (full name)  : Peter Kleine TLVermGeo
     Date Prepared            : 2005-06-21
     Report Type              : NEW
     If Update:
      Previous Site Log       : 
      Modified/Added Sections : 

1.  Site Identification of the GNSS Monument

     Site Name                : Permanent GPS Tracking Station Erfurt
     Four Character ID        : ERFU
     Monument Inscription     : 
     IERS DOMES Number        : 
     CDP Number               : 
     Monument Description     : STEEL MAST
       Height of the Monument : 1 m
       Monument Foundation    : ROOF
       Foundation Depth       : 
     Marker Description       : ADAPTER SURFACE
     Date Installed           : 1999-10-01
     Geologic Characteristic  : None
       Bedrock Type           : None
       Bedrock Condition      : None
       Fracture Spacing       : None
       Fault zones nearby     : NO
         Distance/activity    : 
     Additional Information   : station of the SAPOS network
                              : of Thueringen
                              : SAPOS Station No. 0209

2.   Site Location Information

     City or Town             : Erfurt
     State or Province        : Thueringen
     Country                  : Germany
     Tectonic Plate           : Eurasean Plate
     Approximate Position (ITRF)
       X coordinate (m)       : 3947466.910
       Y coordinate (m)       : 769328.877
       Z coordinate (m)       : 4934103.989
       Latitude (N is +)      : +510018.79642
       Longitude (E is +)     : +0110141.64893
       Elevation (m,ellips.)  : 249.416
     Additional Information   : The system is installed in the office
                              : of the Thueringer Landesamt fuer Vermessung
                              : und Geoinformation Erfurt
                              : Hohenwindenstrasse 13 a
                              : The system works automaticly.
                              : The antenna is fixed at the roof of the
                              : building.

3.  GNSS Receiver Information

3.1  Receiver Type            : TRIMBLE 4000 SSI
     Satellite System         : GPS
     Serial Number            : 3718A19161
     Firmware Version         : 7.19a
     Elevation Cutoff Setting : 0
     Date Installed           : 1999-10-01
     Date Removed             : 2003-08-01
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.2  Receiver Type            : TRIMBLE 5700
     Satellite System         : GPS
     Serial Number            : 0220303602
     Firmware Version         : 1.24
     Elevation Cutoff Setting : 0
     Date Installed           : 2003-08-01
     Date Removed             : 
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.x  Receiver Type            : (A20, from rcvr_ant.tab; see instructions)
     Satellite System         : (GPS/GLONASS/GPS+GLONASS)
     Serial Number            : (A20, but note the first A5 is used in SINEX)
     Firmware Version         : (A11)
     Elevation Cutoff Setting : (deg)
     Date Installed           : (CCYY-MM-DDThh:mmZ)
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)

4.  GNSS Antenna Information

4.1  Antenna Type             : TRM33429.20+GP  TCWD
     Serial Number            : 0220169723
     Antenna Reference Point  : ARP (bottom of dome ground plane)
     Marker->ARP Up Ecc. (m)  : 0
     Marker->ARP North Ecc(m) : 0
     Marker->ARP East Ecc(m)  : 0
     Alignment from True N    : 0
     Antenna Radome Type      : TCWD
     Radome Serial Number     : 24490-00
     Antenna Cable Type       : 
     Antenna Cable Length     : 30 m
     Date Installed           : 1999-10-01
     Date Removed             : 
     Additional Information   : ARP+0.003m = BPA
                              : absolute calibration with dome by Geo++
                              : FIELD/ROBOT  2001-07-14 06:23:35

4.x  Antenna Type             : (A20, from rcvr_ant.tab; see instructions)
     Serial Number            : (A*, but note the first A5 is used in SINEX)
     Antenna Reference Point  : (BPA/BCR/XXX from "antenna.gra"; see instr.)
     Marker->ARP Up Ecc. (m)  : (F8.4)
     Marker->ARP North Ecc(m) : (F8.4)
     Marker->ARP East Ecc(m)  : (F8.4)
     Alignment from True N    : (deg; + is clockwise/east)
     Antenna Radome Type      : (A4 from rcvr_ant.tab; see instructions)
     Radome Serial Number     : 
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : (CCYY-MM-DDThh:mmZ)
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)

5.   Surveyed Local Ties

5.x  Tied Marker Name         : 
     Tied Marker Usage        : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc)
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : (A9)
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : (m)
       dy (m)                 : (m)
       dz (m)                 : (m)
     Accuracy (mm)            : (mm)
     Survey method            : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc)
     Date Measured            : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)

6.   Frequency Standard

6.x  Standard Type            : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc)
       Input Frequency        : (if external)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

7.   Collocation Information

7.x  Instrumentation Type     : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/TIME/etc)
       Status                 : (PERMANENT/MOBILE)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.   Meteorological Instrumentation

8.1.x Humidity Sensor Model   : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : (sec)
       Accuracy (% rel h)     : (% rel h)
       Aspiration             : (UNASPIRATED/NATURAL/FAN/etc)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.2.x Pressure Sensor Model   : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : (sec)
       Accuracy               : (hPa)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.3.x Temp. Sensor Model      : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : (sec)
       Accuracy               : (deg C)
       Aspiration             : (UNASPIRATED/NATURAL/FAN/etc)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.4.x Water Vapor Radiometer  : 
       Manufacturer           : 
       Serial Number          : 
       Distance to Antenna    : (m)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.5.x Other Instrumentation   : (multiple lines)

9.  Local Ongoing Conditions Possibly Affecting Computed Position

9.1.x Radio Interferences     : (TV/CELL PHONE ANTENNA/RADAR/etc)
       Observed Degradations  : (SN RATIO/DATA GAPS/etc)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Additional Information : (multiple lines)

9.2.x Multipath Sources       : (METAL ROOF/DOME/VLBI ANTENNA/etc)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Additional Information : (multiple lines)

9.3.x Signal Obstructions     : (TREES/BUILDLINGS/etc)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Additional Information : (multiple lines)

10.   Local Episodic Effects Possibly Affecting Data Quality

10.x Date                     : (CCYY-MM-DD/CCYY-MM-DD)
     Event                    : (TREE CLEARING/CONSTRUCTION/etc)

11.   On-Site, Point of Contact Agency Information

     Agency                   : Thueringer Landesamt fuer Vermessung und
                              : Geoinformation
                              : Hohenwindenstraße 13a
                              : 99086 ERFURT
                              : Germany
     Preferred Abbreviation   : TLVermGeo
     Mailing Address          : poststelle@tlverma.thueringen.de
     Primary Contact
       Contact Name           : Christian Trautvetter
       Telephone (primary)    : 0049-361-37-83310
       Telephone (secondary)  : +49-172-3644080
       Fax                    : 0049-361-37-83399
       E-mail                 : c.trautvetter@tlverma.thueringen.de
     Secondary Contact
       Contact Name           : Peter Kleine
       Telephone (primary)    : 0049-361-37-83312
       Telephone (secondary)  : 0049-361-37-83672
       Fax                    : 0049-361-37-83612
       E-mail                 : p.kleine@tlverma.thueringen.de

12.  Responsible Agency (if different from 11.)

     Agency                   : 
     Preferred Abbreviation   : 
     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   : 

13.  More Information

     URL for More Information : www.sapos.thueringen.de
       Hardcopy on File
       Site Map               : 
       Site Diagram           : 
       Horizon Mask           : 
       Monument Description   : 
       Site Pictures          : 
     Additional Information   : 
     Antenna Graphics with Dimensions

                        ANTENNA DIMENSIONS
                        ------------------
                              /\
                             /  \
The original absolute ele-  /    \  vation- and azimuth-dependent phase center
variations are given in    /      \  file 169723.ant.
Absolute and relative     /        \  phase center correction files are also
available in formats     /          \  .igs .apc .atx    and
typecalibration in      /            \  formats .igs .apc .atx .pct .ife
                       /              \
                      /                \
                     /                  \
                    /                    \
                   /                      \
                  /                        \
   Trimble: microcentred L1/L2, Compact Geodetic w GP + DOME
                    "TRM33429.20+GP  TCWD"
               /                              \
              /                                \
             /                                  \
            /                                    \
           /                                      \
          /                                        \
         /                                          \
        /                                            \
       /                   ----+----                  \        <--  0.071  L2
      /                 /      +      \                \       <--  0.063  L1
     /--------------------------------------------------\      <--  0.066  TGP
    / -------------------------------------------------- \     <--  0.062  BGP
   /                 |                   |                \
  /                   |                 |                  \
 /                     |               |                    \
/                       +------x------+                      \ <-- 0.003 BPA
-------------------------------x------------------------------ <-- 0.000 ARP
       <--                  0.4668                   -->        INNER EDGE
      <--                   0.4826                    -->       OUTER EDGE

ARP: Antenna Reference Point = bottom of dome ground plane
   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