CHOF00JPN Site Information Form (site log)
     International GNSS Service
     See Instructions at:
       https://files.igs.org/pub/station/general/sitelog_instr_v2.0.txt

0.   Form

     Prepared by (full name)  : Oliver Montenbruck (DLR)
     Date Prepared            : 2021-12-27
     Report Type              : Update
     If Update:
      Previous Site Log       : chof_20201211.log
      Modified/Added Sections : 11,12


1.   Site Identification of the GNSS Monument

     Site Name                : Chofu, Japan
     Nine Character ID        : CHOF00JPN
     Monument Inscription     : 
     IERS DOMES Number        : 21788M001
     CDP Number               : 
     Monument Description     : MAST
       Height of the Monument : 
       Monument Foundation    : WALL
       Foundation Depth       : 
     Marker Description       : NONE
     Date Installed           : 2010-09-17T08:00Z
     Geologic Characteristic  : 
       Bedrock Type           : 
       Bedrock Condition      : 
       Fracture Spacing       : 
       Fault zones nearby     : 
         Distance/activity    : 
     Additional Information   : The station is located at JAXA's Chofu
                              : Aerospace Center near Tokyo.
                              : Two receivers are jointly operated from a
                              : common antenna via an active 4-way power
                              : splitter.
                              : The other receiver (TopCon Net-G3) is part
                              : of the EVnet network of DLR's Institute of
                              : Communication and Navigation


2.   Site Location Information

     City or Town             : Chofu
     State or Province        : 
     Country or Region        : JPN
     Tectonic Plate           : NORTH AMERICAN
     Approximate Position (ITRF)
       X coordinate (m)       : -3946216.7100
       Y coordinate (m)       : 3366689.8300
       Z coordinate (m)       : 3698971.6900
       Latitude (N is +)      : +354028.36
       Longitude (E is +)     : +1393151.80
       Elevation (m,ellips.)  : 93.9
     Additional Information   : 


3.   GNSS Receiver Information

3.1  Receiver Type            : JAVAD TRE_G2T DELTA
     Satellite System         : GPS+GAL+SBAS
     Serial Number            : 00016
     Firmware Version         : 3.1.0b3
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2009-08-17T15:00Z
     Date Removed             : 2010-01-27T16:00Z
     Temperature Stabiliz.    : 
     Additional Information   : Multipath mitigation enabled

3.2  Receiver Type            : JAVAD TRE_G2T DELTA
     Satellite System         : GPS+GAL+SBAS
     Serial Number            : 00016
     Firmware Version         : 3.1.2
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2010-01-27T16:00Z
     Date Removed             : 2010-03-10T15:30Z
     Temperature Stabiliz.    : 
     Additional Information   : Multipath mitigation enabled

3.3  Receiver Type            : JAVAD TRE_G2T DELTA
     Satellite System         : GPS+GAL+SBAS
     Serial Number            : 00016
     Firmware Version         : 3.1.5b0
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2010-03-10T15:30Z
     Date Removed             : 2010-04-20T12:15Z
     Temperature Stabiliz.    : 
     Additional Information   : Multipath mitigation enabled

3.4  Receiver Type            : JAVAD TRE_G2T DELTA
     Satellite System         : GPS+GAL+SBAS
     Serial Number            : 00016
     Firmware Version         : 3.1.6b1
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2010-04-20T12:15Z
     Date Removed             : 2010-11-29T02:30Z
     Temperature Stabiliz.    : 
     Additional Information   : Multipath mitigation enabled

3.5  Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.4.0a0_Q1
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2010-11-29T02:30Z
     Date Removed             : 2011-01-28T18:00Z
     Temperature Stabiliz.    : 
     Additional Information   : New receiver and QZSS extension;
                              : Multipath mitigation enabled

3.6  Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.4.0a3
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2011-01-28T18:00Z
     Date Removed             : 2011-02-11T11:00Z
     Temperature Stabiliz.    : 
     Additional Information   : Multipath mitigation enabled

3.7  Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.4.0a3_qzss3
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2011-02-11T11:00Z
     Date Removed             : 2011-07-18T08:00Z
     Temperature Stabiliz.    : 
     Additional Information   : Multipath mitigation enabled

3.8  Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.4.0a3_qzss7
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2011-07-18T08:00Z
     Date Removed             : 2011-12-13T12:45Z
     Temperature Stabiliz.    : 
     Additional Information   : Multipath mitigation enabled

3.9  Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.4.0
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2011-12-13T12:45Z
     Date Removed             : 2011-12-23T10:30Z
     Temperature Stabiliz.    : 
     Additional Information   : Multipath mitigation enabled

3.10 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.4.1b0
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2011-12-23T10:30Z
     Date Removed             : 2012-06-19T16:45Z
     Temperature Stabiliz.    : 
     Additional Information   : Multipath mitigation enabled

3.11 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.4.1b0
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2012-06-19T16:45Z
     Date Removed             : 2012-12-07T09:00Z
     Temperature Stabiliz.    : 
     Additional Information   : Deactivated multipath mitigation

3.12 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.4.7b2_E19
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2012-12-07T09:00Z
     Date Removed             : 2012-12-27T10:05Z
     Temperature Stabiliz.    : 
     Additional Information   : New firmware;
                              : supports early IOV-3 tracking

3.13 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.4.7
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2012-12-27T10:05Z
     Date Removed             : 2014-12-02T16:00Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update
                              : (fix of IOV-3/4 tracking)

3.14 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.6.1b1-68-7da1
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2014-12-02T16:00Z
     Date Removed             : 2015-02-09T11:15Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update
                              : (FOC E5 offset compensation)

3.15 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.6.1
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2015-02-09T11:15Z
     Date Removed             : 2015-06-26T14:10Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update

3.16 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.6.2
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2015-06-26T14:10Z
     Date Removed             : 2017-01-12T15:35Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update

3.17 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.6.9
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2017-01-12T15:35Z
     Date Removed             : 2017-02-09T09:40Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update

3.18 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+IRNSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.6.9
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2017-02-09T09:40Z
     Date Removed             : 2017-09-06T14:25Z
     Temperature Stabiliz.    : 
     Additional Information   : Added IRNSS license

3.19 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+IRNSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.7.3b0-06-bf6b-local
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2017-09-06T14:25Z
     Date Removed             : 2018-02-05T13:35Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update

3.20 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+IRNSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.7.3
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-02-05T13:35Z
     Date Removed             : 2018-10-09T11:00Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update

3.21 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+IRNSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.7.3p1
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-10-09T11:00Z
     Date Removed             : 2018-11-08T13:33Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update

3.22 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+IRNSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.7.4
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-11-08T13:33Z
     Date Removed             : 2018-12-10T17:30Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update

3.23 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+IRNSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.7.5
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-12-10T17:30Z
     Date Removed             : 2019-01-24T13:35Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update

3.24 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+IRNSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.7.5p1
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-01-24T13:35Z
     Date Removed             : 2019-04-11T09:10Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update

3.25 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+IRNSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.7.6
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-04-11T09:10Z
     Date Removed             : 2020-01-28T17:25Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update

3.26 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+IRNSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.7.9
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-01-28T17:25Z
     Date Removed             : 2020-12-11T13:00Z
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update

3.27 Receiver Type            : JAVAD TRE_G3TH DELTA
     Satellite System         : GPS+GLO+GAL+QZSS+IRNSS+SBAS
     Serial Number            : 00534
     Firmware Version         : 3.7.10
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-12-11T13:00Z
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : 
     Additional Information   : Firmware update

3.x  Receiver Type            : (A20, from rcvr_ant.tab; see instructions)
     Satellite System         : (GPS+GLO+GAL+BDS+QZSS+SBAS)
     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             : TRM57971.00     NONE
     Serial Number            : 31187001
     Antenna Reference Point  : BAM
     Marker->ARP Up Ecc. (m)  : 0.0000
     Marker->ARP North Ecc(m) : 0.0000
     Marker->ARP East Ecc(m)  : 0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : NONE
     Radome Serial Number     : 
     Antenna Cable Type       : 
     Antenna Cable Length     : 20 m
     Date Installed           : 2009-08-17T00:00Z
     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)                 : (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

6.1  Standard Type            : INTERNAL
       Input Frequency        : 
       Effective Dates        : 2009-08-17/2010-11-29
       Notes                  : JAVAD TRE_G2T DELTA

6.2  Standard Type            : INTERNAL
       Input Frequency        : 
       Effective Dates        : 2010-11-29/CCYY-MM-DD
       Notes                  : JAVAD TRE_G3TH DELTA

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/BUILDINGS/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                   : Japan Aerospace Exploration Agency
     Preferred Abbreviation   : JAXA
     Mailing Address          : Operation & Safety Technology Team
                              : Aviation Program Group
                              : Navigation Technology Section
                              : 6-13-1 Osawa
                              : Mitaka, Tokyo 181-0015, Japan
     Primary Contact
       Contact Name           : DLR/GSOC GNSS network operator
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : rb_igs@dlr.de
     Secondary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Additional Information   : 


12.  Responsible Agency (if different from 11.)

     Agency                   : German Aerospace Center
     Preferred Abbreviation   : DLR
     Mailing Address          : Oberpfaffenhofen
                              : 82234 Wessling
                              : Germany
     Primary Contact
       Contact Name           : DLR/GSOC GNSS network operator
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : rb_igs@dlr.de
     Secondary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Additional Information   : 


13.  More Information

     Primary Data Center      : BKG
     Secondary Data Center    : CDDIS
     URL for More Information : 
     Hardcopy on File
       Site Map               : 
       Site Diagram           : N
       Horizon Mask           : N
       Monument Description   : N
       Site Pictures          : N
     Additional Information   : Data available
     Antenna Graphics with Dimensions



TRM57971.00

   / --------------------------------------------- \
  +                                                 +
   \ --------------------------------------------- /
                   \               /
                    \             /
                     \-----+-----/                        <--  0.0000  BAM=ARP

  <--                    0.3396                   -->                  Notches



   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

All dimensions are in meters.