OS0G Site Information Form (site log)
     International GPS Service
     See Instructions at:
       ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt

0.   Form

     Prepared by (full name)  : Christina Kempe
     Date Prepared            : 2003-06-24
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : os0g_20020610.log
      Modified/Added Sections : 2, 3.3

1.   Site Identification of the GNSS Monument

     Site Name                : Onsala
     Four Character ID        : OS0G
     Monument Inscription     : Onsala 301
     IERS DOMES Number        : 10402M004
     CDP Number               : 
     Monument Description     : PILLAR
       Height of the Monument : 
       Monument Foundation    : 
       Foundation Depth       : 
     Marker Description       : 
     Date Installed           : 1991-07-01
     Geologic Characteristic  : BEDROCK
       Bedrock Type           : SOLID
       Bedrock Condition      : FRESH
       Fracture Spacing       : over 200 cm
       Fault zones nearby     : 
         Distance/activity    : 
     Additional Information   : 

2.   Site Location Information

     City or Town             : Onsala
     State or Province        : 
     Country                  : Sweden
     Tectonic Plate           : Eurasian
     Approximate Position (ITRF)
       X coordinate (m)       : 3370658.8318
       Y coordinate (m)       : 711876.9387
       Z coordinate (m)       : 5349786.7450
       Latitude (N is +)      : +572343.07
       Longitude (E is +)     : +0115531.85
       Elevation (m,ellips.)  : 00046.5  
     Additional Information   : SWEREF 99 (Swedish realisation of ETRS89).
                              : Swedish west-coast, near Gothenburg.

3.   GNSS Receiver Information

3.1  Receiver Type            : ASHTECH Z18
     Satellite System         : GPS+GLONASS
     Serial Number            : ZX00114
     Firmware Version         : 0060
     Elevation Cutoff Setting : 
     Date Installed           : 1998-10-21
     Date Removed             : 1999-12-14
     Temperature Stabiliz.    : 22-28 degrees C 
     Additional Information   : See 10.1

3.2  Receiver Type            : JPS LEGACY
     Satellite System         : GPS+GLONASS
     Serial Number            : MT301613113
     Firmware Version         : 1.9 Aug,31,1999 pl6
     Elevation Cutoff Setting : 5
     Date Installed           : 1999-12-14
     Date Removed             : 2003-06-24
     Temperature Stabiliz.    : 22-28 degrees C 
     Additional Information   : (multiple lines)
                              : (multiple lines)

3.3  Receiver Type            : JPS LEGACY
     Satellite System         : GPS+GLONASS
     Serial Number            : MT301613113
     Firmware Version         : 2.3 May,13,2003 p1
     Elevation Cutoff Setting : 5
     Date Installed           : 2003-06-24
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : 22-28 degrees C 
     Additional Information   : Firmware upgrade.


4.   GNSS Antenna Information

4.1  Antenna Type             : AOAD/M_B
     Serial Number            : 20
     Antenna Reference Point  : BCR
     Marker->ARP Up Ecc. (m)  : 0.995
     Marker->ARP North Ecc(m) : 0.000
     Marker->ARP East Ecc(m)  : 0.000
     Alignment from True N    : 
     Antenna Radome Type      : DUTD
     Radome Serial Number     : 
     Antenna Cable Type       : 
     Antenna Cable Length     : 
     Date Installed           : 1991-07-01
     Date Removed             : 1999-02-01
     Additional Information   : 

4.2  Antenna Type             : AOAD/M_B
     Serial Number            : 020
     Antenna Reference Point  : BCR
     Marker->ARP Up Ecc. (m)  : 0.995
     Marker->ARP North Ecc(m) : 0.000
     Marker->ARP East Ecc(m)  : 0.000
     Alignment from True N    : 
     Antenna Radome Type      : OSOD
     Radome Serial Number     : 
     Antenna Cable Type       : 
     Antenna Cable Length     : 
     Date Installed           : 1999-02-02
     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)
                              : (multiple lines)

5.   Surveyed Local Ties

5.1  Tied Marker Name         : ONSALA 131
     Tied Marker Usage        : 
     Tied Marker CDP Number   : 7213
     Tied Marker DOMES Number : 10402S002
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : -52.631
       dy (m)                 : 40.464
       dz (m)                 : 43.865
     Accuracy (mm)            : 1
     Survey method            : 
     Date Measured            : 1993-04-15
     Additional Information   : 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).

5.2  Tied Marker Name         : ONSALA 501
     Tied Marker Usage        : 
     Tied Marker CDP Number   : 7211
     Tied Marker DOMES Number : 10402M006
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : -16.704
       dy (m)                 : -10.902
       dz (m)                 : 9.290
     Accuracy (mm)            : 1
     Survey method            : 
     Date Measured            : 1993-04-15
     Additional Information   : 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).

5.3  Tied Marker Name         : ONSALA 301
     Tied Marker Usage        : 
     Tied Marker CDP Number   : 20
     Tied Marker DOMES Number : 10402M004
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : 0
       dy (m)                 : 0
       dz (m)                 : 0
     Accuracy (mm)            : 0
     Survey method            : 
     Date Measured            : (CCYY-MM-DDThh:mmZ)
     Additional Information   : Same monument, pillar and antenna as 
                              : the Onsala IGS station ONSA.

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   : 

6.   Frequency Standard

6.1  Standard Type            : EXTERNAL H2-MASER
       Input Frequency        : 5 MHz
       Effective Dates        : 1998-11-11/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)
                              : (multiple lines)

7.   Collocation Information

7.1  Instrumentation Type     : GPS
       Status                 : PERMANENT
       Effective Dates        : 1993-07-01/CCYY-MM-DD
       Notes                  : ONSALA IGS station.

7.2  Instrumentation Type     : VLBI
       Status                 : PERMANENT
       Effective Dates        : 1980-01-01/CCYY-MM-DD
       Notes                  : Also Mobile VLBI, Gravim

7.3  Instrumentation Type     : GRAVITY
       Status                 : MOBILE
       Effective Dates        : 1995-09-26/1995-09-27
       Notes                  : 

7.4  Instrumentation Type     : GRAVITY
       Status                 : MOBILE
       Effective Dates        : 1995-09-29/1995-10-01
       Notes                  : 


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)
                              : (multiple lines)

8.   Meteorological Instrumentation

8.1.1 Humidity Sensor Model   : HMP HUMICAP H-sensor
       Manufacturer           : VAISALA
       Serial Number          : 
       Data Sampling Interval : 30 min
       Accuracy (% rel h)     : 2
       Aspiration             : 
       Height Diff to Ant     : 
       Calibration date       : 
       Effective Dates        : 1997-04-01/CCYY-MM-DD
       Notes                  : 

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)

8.2.1 Pressure Sensor Model   : Setra 361B
       Manufacturer           : Setra Systems
       Serial Number          : 
       Data Sampling Interval : 30 min
       Accuracy               : 0.5 mbar
       Height Diff to Ant     : 0 m
       Calibration date       : 
       Effective Dates        : 1991-07-01/CCYY-MM-DD
       Notes                  : 

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)

8.3.1 Temp. Sensor Model      : HMP35D pt-100
       Manufacturer           : VAISALA
       Serial Number          : 
       Data Sampling Interval : 30 min
       Accuracy               : 0.1 deg C
       Aspiration             : 
       Height Diff to Ant     : 
       Calibration date       : 
       Effective Dates        : 1997-04-01/CCYY-MM-DD
       Notes                  : 

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)

8.4.1 Water Vapor Radiometer  : Astrid
       Manufacturer           : Onsala Space Observatory
       Serial Number          : 
       Distance to Antenna    : 8 m
       Height Diff to Ant     : 0 m
       Calibration date       : 
       Effective Dates        : 1991-07-01/CCYY-MM-DD
       Notes                  : 

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)

8.5.1 Other Instrumentation   : 

9.  Local Ongoing Conditions Possibly Affecting Computed Position

9.1.1 Radio Interferences     : 
       Observed Degradations  : 
       Effective Dates        : 
       Additional Information : 

9.2.1 Multipath Sources       : 
       Effective Dates        : 
       Additional Information : 

9.3.1 Signal Obstructions     : 
       Effective Dates        : 
       Additional Information : 

10.  Local Episodic Effects Possibly Affecting Data Quality

10.1 Date                     : 1999-01-25
     Event                    : Firmware upgrade (0057 -> 0060).

11.   On-Site, Point of Contact Agency Information

     Agency                   : Onsala Space Observatory/Chalmers
     Preferred Abbreviation   : 
     Mailing Address          : SE-439 92 Onsala
                              : Sweden
     Primary Contact
       Contact Name           : Jorgen Borjesson (?)
       Telephone (primary)    : +46 31 772 5575
       Telephone (secondary)  : +46 31 772 5500
       Fax                    : +46 31 772 5590
       E-mail                 : abj@oso.chalmers.se
     Secondary Contact
       Contact Name           : Jan Johansson
       Telephone (primary)    : +46 31 772 55 58
       Telephone (secondary)  : +46 33 16 55 04
       Fax                    : +46 33 12 50 38
       E-mail                 : jan.johansson@sp.se
     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

     URL for More Information : 
     Hardcopy on File
       Site Map               : Y
       Site Diagram           : Y
       Horizon Mask           : Y
       Monument Description   : Y
       Site Pictures          : Y
     Additional Information   : (multiple lines)
                              : (multiple lines)
     Antenna Graphics with Dimensions

     AOAD/M_T

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

<--                      0.381                       -->