Subject: [IGSSTATION-1628]: DUBR Radome removed
From: Rudi Stöger <[email-masked]>
To: [email-masked], [email-masked]
Date: Thu, 28 Jun 2007 14:54:14 +0200

******************************************************************************
IGS Station Mail          28 Jun 05:58:19 PDT 2007      Message Number 1628
******************************************************************************

Author: Rudi Stoeger

Ladies and Gentlemen

Because the EPN Central Bureau (EUREF)
cannot accept
TRM55971.00     SCIT
(Trimble 55971.00 antenna together with SCIT
Radome)
without true absolute calibration values,
the colleagues in the Hvratska Geodetski Institut /
Croatian Geodetic Institute removed the
SCIT Radome in the DUBR GPS+GLONASS
Permanent Tracking Station Dubrovnik, Croatia,
2007-06-19T18:00Z.

With best regards
Rudi
     DUBR 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)  : Ilija Grgic
                              : Rudolf Stoeger
     Date Prepared            : 2007-06-28
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : dubr_20070614.log
      Modified/Added Sections : 4.3, 4.4

1.   Site Identification of the GNSS Monument

     Site Name                : Dubrovnik
     Four Character ID        : DUBR
     Monument Inscription     :
     IERS DOMES Number        : 11901M001
     CDP Number               : -
     Monument Description     : PAINTED STEEL TRIPOD
       Height of the Monument : 2.85
       Monument Foundation    : STEEL TRIPOD ANCHORED TO THE FLAT ROOF
       Foundation Depth       :
     Marker Description       : SURVEY MARKER BOLT ON STEEL TRIPOD
     Date Installed           : 2000-09-22T00:00Z
     Geologic Characteristic  : Bedrock
       Bedrock Type           : Sedimentary
       Bedrock Condition      : Weathered
       Fracture Spacing       : over 200 cm
       Fault zones nearby     : (YES/NO/Name of the zone)
         Distance/activity    :
     Additional Information   : Painted steel tripod anchored to
                              : the flat roof of the Imperial
                              : Fortress on the hill Srdj -
                              : San Sergio.
                              : The antenna is 7.5 m above the
                              : ground on northern side, and 9.5 m
                              : on southern side.

2.   Site Location Information

     City or Town             : Dubrovnik
     State or Province        :
     Country                  : Croatia
     Tectonic Plate           : Eurasian
     Approximate Position (ITRF)
       X coordinate (m)       : 4465940.10
       Y coordinate (m)       : 1460594.41
       Z coordinate (m)       : 4299291.36
       Latitude (N is +)      : +423860.00
       Longitude (E is +)     : +0180637.44
       Elevation (m,ellips.)  : 00454.3
     Additional Information   :

3.   GNSS Receiver Information

3.1  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : LP02415
     Firmware Version         : 1I00-D002
     Elevation Cutoff Setting : 0
     Date Installed           : 2000-09-22T00:00Z
     Date Removed             : 2003-07-20T10:00Z
     Temperature Stabiliz.    : none
     Additional Information   : Ashtech GPS Receiver XII,
                              : Mdl. Z-12,
                              : P/N 700845-10 (E).
                              : Smoothing option on.

3.2  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : LP02415
     Firmware Version         : 1I00-D002
     Elevation Cutoff Setting : 0
     Date Installed           : 2003-07-20T10:00Z
     Date Removed             : 2004-12-15T09:36Z
     Temperature Stabiliz.    : none
     Additional Information   : Ashtech GPS Receiver XII,
                              : Mdl. Z-12,
                              : P/N 700845-10 (E).
                              : Smoothig option deactivated.

3.3  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : LP03169
     Firmware Version         : 1K00-1D04
     Elevation Cutoff Setting : 0
     Date Installed           : 2004-12-15T09:36Z
     Date Removed             : 2005-12-14T00:00Z
     Temperature Stabiliz.    : none
     Additional Information   :

3.4  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLONASS
     Serial Number            : 4644K02991
     Firmware Version         : 3.30
     Elevation Cutoff Setting : 0
     Date Installed           : 2007-01-22T16:00Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Temperature Stabiliz.    : none
     Additional Information   :

3.x  Receiver Type            : (A20, from rcvr_ant.tab; see instructions)
     Satellite System         : (GPS/GLONASS/GPS+GLONASS)
     Serial Number            : (A5)
     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             : ASH700936D_M    SNOW
     Serial Number            : CR13724
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 000.0810
     Marker->ARP North Ecc(m) : 000.0000
     Marker->ARP East Ecc(m)  : 000.0000
     Alignment from True N    : 0
     Antenna Radome Type      : SNOW
     Radome Serial Number     :
     Antenna Cable Type       : RG 214
     Antenna Cable Length     : 30
     Date Installed           : 2000-09-22T00:00Z
     Date Removed             : 2005-12-14T00:00Z
     Additional Information   : Ashtech Choke Ring Antenna
                              : P/N 700936 (D) with white
                              : conical Ashtech Dome SNOW

4.2  Antenna Type             : TRM55971.00     SCIT
     Serial Number            : 30213971
     Antenna Reference Point  : BAM
     Marker->ARP Up Ecc. (m)  : -00.0120
     Marker->ARP North Ecc(m) : 000.0000
     Marker->ARP East Ecc(m)  : 000.0000
     Alignment from True N    : 0
     Antenna Radome Type      : SCIT
     Radome Serial Number     :
     Antenna Cable Type       : RG 214
     Antenna Cable Length     : 30
     Date Installed           : 2007-01-22T16:00Z
     Date Removed             : 2007-06-02T11:00Z
     Additional Information   :

4.3  Antenna Type             : TRM55971.00     SCIT
     Serial Number            : 30213971
     Antenna Reference Point  : BAM
     Marker->ARP Up Ecc. (m)  : 000.0580
     Marker->ARP North Ecc(m) : 000.0000
     Marker->ARP East Ecc(m)  : 000.0000
     Alignment from True N    : 0
     Antenna Radome Type      : SCIT
     Radome Serial Number     :
     Antenna Cable Type       : RG 214
     Antenna Cable Length     : 30
     Date Installed           : 2007-06-02T12:00Z
     Date Removed             : 2007-06-19T17:45Z
     Additional Information   :

4.4  Antenna Type             : TRM55971.00     NONE
     Serial Number            : 30213971
     Antenna Reference Point  : BAM
     Marker->ARP Up Ecc. (m)  : 000.0580
     Marker->ARP North Ecc(m) : 000.0000
     Marker->ARP East Ecc(m)  : 000.0000
     Alignment from True N    : 0
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : RG 214
     Antenna Cable Length     : 30
     Date Installed           : 2007-06-19T18:00Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Additional Information   :

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)                 :
       dy (m)                 :
       dz (m)                 :
     Accuracy (mm)            : (mm)
     Survey method            : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc)
     Date Measured            : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)

6.   Frequency Standard

6.1  Standard Type            : INTERNAL
       Input Frequency        :
       Effective Dates        : 2000-07-22/CCYY-MM-DD
       Notes                  :

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               : (hPa)
       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  :

9.   Local Ongoing Conditions Possibly Affecting Computed Position

9.1.x  Radio Interferences    : (TV/CELL PHONE ANTENNA/RADAR/etc)
       Observed Degredations  : (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)

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                   : Croatian Geodetic Institute
     Preferred Abbreviation   : CGI
     Mailing Address          : Croatian Geodetic Institute
                              : Savska 41/XVI
                              : HR-10001 Zagreb
                              : Republic of Croatia
     Primary Contact
       Contact Name           : Mr. Sc. Ilija Grgic
       Telephone (primary)    : ++385-1-6313 406
       Telephone (secondary)  : ++385-1-6312 400
       Fax                    : ++385-1-6313 410
       E-mail                 : [email-masked]
     Secondary Contact
       Contact Name           :
       Telephone (primary)    :
       Telephone (secondary)  :
       Fax                    :
       E-mail                 :
     Additional Information   :

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

     Primary Data Center      : BKGE
     Secondary Data Center    : OLG
     URL for More Information :
       Hardcopy on File
       Site Map               : (Y or URL)
       Site Diagram           : (Y or URL)
       Horizon Mask           : (Y or URL)
       Monument Description   : Y
       Site Pictures          : Y
     Additional Information   : (multiple lines)
     Antenna Graphics with Dimensions

ASH700936D_M
from 2000-09-22 until 2005-12-14

                         -----
                     /     +     \                        <--  0.128  L2
                    |      +      |                       <--  0.110  L1
  +--------------------------------------------------+    <--  0.102  TCR
  |                                                  |
  |                                                  |
  |                                                  |
  |                                                  |
+-+--------------------------------------------------+-+  <--  0.038
+-------------------+-------------+--------------------+  <--  0.035  BCR
                    |             |
                   =|             |
                    +------x------+                       <--  0.000  BPA=ARP

<--                      0.381                       -->

TRM55971.00
from 2007-01-22

    / ----------------------+--------------------- \   <--  0.0850  L1
   +                        +                       +  <--  0.0701  L2
    \ -------------------------------------------- /
                    \               /
                     \             /
                      \-----+-----/                    <--  0.0000  ARP=BAM

   <--                   0.3396                  -->

   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                       BAM: Bottom of antenna mount

All dimensions are in meters.