DELF00NLD Site Information Form (site log)
     International GNSS Service
     See Instructions at:
       https://files.igs.org/pub/station/general/sitelog_instr.txt


0.   Form

     Prepared by (full name)  : TU Delft GNSS team (gnss-citg@tudelft.nl)
     Date Prepared            : 2023-06-30
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : delf00nld_20230417.log
      Modified/Added Sections : 3.9, 3.10


1.   Site Identification of the GNSS Monument

     Site Name                : Delft
     Four Character ID        : DELF
     Monument Inscription     : GPS (mark #16)
     IERS DOMES Number        : 13502M004
     CDP Number               : (A4)
     Monument Description     : PVC PLATE ON CONCRETE BALUSTRADE
       Height of the Monument : 0.15 m
       Monument Foundation    : ROOF ON CONCRETE TOWER, FOUNDED ON PILLARS
       Foundation Depth       : 15 m
     Marker Description       : BRASS NAIL
     Date Installed           : 1994-12-30T13:00Z
     Geologic Characteristic  : SAND
       Bedrock Type           : SEDIMENTARY
       Bedrock Condition      : FRESH
       Fracture Spacing       : 0 cm
       Fault zones nearby     : NO
         Distance/activity    : (multiple lines)
     Additional Information   : Point No. in National Triangulation: RD 370351
                              : The station is operating under responsibility
                              : of the AGRS.NL organisation (MD/KAD/TUD).


2.   Site Location Information

     City or Town             : Delft
     State or Province        : Zuid-Holland
     Country                  : Netherlands (the)
     Tectonic Plate           : EURASIAN
     Approximate Position (ITRF)
       X coordinate (m)       : 3924687.742
       Y coordinate (m)       : 301132.768
       Z coordinate (m)       : 5001910.798
       Latitude (N is +)      : +515910.02
       Longitude (E is +)     : +0042315.30
       Elevation (m,ellips.)  : 74.4
     Additional Information   : Former Geodesy building Thijsseweg 11, 5 km
                              : South of the center of town. Motorway A13, exit
                              : Delft Zuid / Technische Universiteit Delft


3.   GNSS Receiver Information

3.1  Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : 175
     Firmware Version         : 3.2.32.1
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 1994-12-30T13:00Z
     Date Removed             : 1995-12-26T23:59Z
     Temperature Stabiliz.    : (deg C) +/- 3.0
     Additional Information   : (multiple lines)

3.2  Receiver Type            : ROGUE SNR-12 RM
     Satellite System         : GPS
     Serial Number            : 222
     Firmware Version         : 3.2.32.1
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 1995-12-27T17:22Z
     Date Removed             : 1997-11-20T16:50Z
     Temperature Stabiliz.    : (deg C) +/- 3.0
     Additional Information   : Receiver replaced due to failure in DCA unit.

3.3  Receiver Type            : ROGUE SNR-12 RM
     Satellite System         : GPS
     Serial Number            : 211
     Firmware Version         : 3.2.32.1
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 1997-11-20T17:06Z
     Date Removed             : 1999-07-08T14:30Z
     Temperature Stabiliz.    : (deg C) +/- 3.0
     Additional Information   : Firmware change.

3.4  Receiver Type            : ROGUE SNR-12 RM
     Satellite System         : GPS
     Serial Number            : 211
     Firmware Version         : 3.2.32.9
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 1999-07-08T15:15Z
     Date Removed             : 2000-07-23T06:30Z
     Temperature Stabiliz.    : (deg C) +/- 3.0
     Additional Information   : (multiple lines)

3.5  Receiver Type            : TRIMBLE 4700
     Satellite System         : GPS
     Serial Number            : 96517
     Firmware Version         : 1.20
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2000-07-23T07:00Z
     Date Removed             : 2002-11-18T07:00Z
     Temperature Stabiliz.    : (deg C) +/- 3.0
     Additional Information   : (multiple lines)

3.6  Receiver Type            : TRIMBLE 4700
     Satellite System         : GPS
     Serial Number            : 96517
     Firmware Version         : N1.30/S0.00
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2002-11-18T10:30Z
     Date Removed             : 2015-11-27T00:00Z
     Temperature Stabiliz.    : (deg C) +/- 3.0
     Additional Information   : (multiple lines)

3.7  Receiver Type            : TPS ODYSSEY_E
     Satellite System         : GPS+GLO
     Serial Number            : 323-0386
     Firmware Version         : 3.5 Mar,16,2011 p1
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-11-27T17:00Z
     Date Removed             : 2019-03-29T10:16Z
     Temperature Stabiliz.    : 20.0 +/- 3.0
     Additional Information   : (multiple lines)

3.8  Receiver Type            : TPS ODYSSEY_E
     Satellite System         : GPS+GLO
     Serial Number            : 323-0386
     Firmware Version         : 3.5 Feb,01,2019 p5
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-03-29T10:17Z
     Date Removed             : 2022-02-24T10:55Z
     Temperature Stabiliz.    : 20.0 +/- 3.0
     Additional Information   : (multiple lines)

3.9  Receiver Type            : SEPT POLARX5E
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS
     Serial Number            : 3048221
     Firmware Version         : 5.4.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2022-02-24T12:00Z
     Date Removed             : 2023-06-30T09:24Z
     Temperature Stabiliz.    : 20.0 +/- 3.0
     Additional Information   : (multiple lines)

3.10 Receiver Type            : SEPT POLARX5E
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS
     Serial Number            : 3048221
     Firmware Version         : 5.5.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2023-06-30T09:25Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Temperature Stabiliz.    : 20.0 +/- 3.0
     Additional Information   : (multiple lines)

3.x  Receiver Type            : (A20, from rcvr_ant.tab; see instructions)
     Satellite System         : (GPS+GLO+GAL+BDS+QZSS+IRNSS+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             : AOAD/M_T        NONE
     Serial Number            : 177
     Antenna Reference Point  : BPA
     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       : RG214/U TYPE 13 AWG TYPE CL2 (UL) E100316S
     Antenna Cable Length     : 30 m
     Date Installed           : 1994-12-30T13:00Z
     Date Removed             : 1996-03-08T14:59Z
     Additional Information   : (multiple lines)

4.2  Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 246
     Antenna Reference Point  : BPA
     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       : RG214/U TYPE 13 AWG TYPE CL2 (UL) E100316S
     Antenna Cable Length     : 30 m
     Date Installed           : 1996-03-08T15:00Z
     Date Removed             : 1996-07-25T09:49Z
     Additional Information   : (multiple lines)

4.3  Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 243
     Antenna Reference Point  : BPA
     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       : RG214/U TYPE 13 AWG TYPE CL2 (UL) E100316S
     Antenna Cable Length     : 30 m
     Date Installed           : 1996-07-25T09:50Z
     Date Removed             : 1996-07-30T11:14Z
     Additional Information   : (multiple lines)

4.4  Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 177
     Antenna Reference Point  : BPA
     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       : RG214/U TYPE 13 AWG TYPE CL2 (UL) E100316S
     Antenna Cable Length     : 30 m
     Date Installed           : 1996-07-30T11:15Z
     Date Removed             : 1996-08-08T13:29Z
     Additional Information   : (multiple lines)

4.5  Antenna Type             : AOAD/M_T        DUTD
     Serial Number            : 240
     Antenna Reference Point  : BPA
     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      : DUTD
     Radome Serial Number     : 
     Antenna Cable Type       : RG214/U TYPE 13 AWG TYPE CL2 (UL) E100316S
     Antenna Cable Length     : 30 m
     Date Installed           : 1996-08-08T13:30Z
     Date Removed             : 2000-07-23T06:30Z
     Additional Information   : A conical polyester antenna radome is used on
                              : the AOAD/M_T antenna. This is one of the
                              : earlier radome designs, by Danny van Loon, in
                              : 1991. For some time, it has also been used in
                              : the Swedish network, but there it has been
                              : phased out.

4.6  Antenna Type             : TRM29659.00     UNAV
     Serial Number            : 93258
     Antenna Reference Point  : BPA
     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      : UNAV
     Radome Serial Number     : 
     Antenna Cable Type       : TRIMBLE 14551-00-REVA DCA 0011
     Antenna Cable Length     : 20 m
     Date Installed           : 2000-07-23T07:00Z
     Date Removed             : 2016-07-13T13:30Z
     Additional Information   : Installed on 2001-11-07T08:30Z (1139/3):
                              : EMP Protector HUBER-SUHNER 34U2.17A
                              : antenna -> ~12 m cable -> EMP Protector
                              : HUBER-SUHNER 34U2.17A -> ~8 m cable -> receiver

4.7  Antenna Type             : TRM29659.00     UNAV
     Serial Number            : 0220314044
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0500
     Marker->ARP North Ecc(m) :   0.0000
     Marker->ARP East Ecc(m)  :   0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : UNAV
     Radome Serial Number     : 0220314044
     Antenna Cable Type       : TRIMBLE 14551-00-REVA DCA 0011
     Antenna Cable Length     : 20 m
     Date Installed           : 2016-07-13T13:30Z
     Date Removed             : 2022-02-24T11:00Z
     Additional Information   : antenna -> ~12 m cable -> EMP Protector
                              : HUBER-SUHNER 34U2.17A -> ~8 m cable -> receiver.
                              : A 50 mm spacer was inserted between the antenna
                              : and marker, flush with inner ring in BPA. BPA
                              : has been seriously corroded due to salt-water
                              : conditions in previous installation.

4.8  Antenna Type             : SEPCHOKE_B3E6   SPKE
     Serial Number            : 5741
     Antenna Reference Point  : BPA
     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      : SPKE
     Radome Serial Number     : 
     Antenna Cable Type       : PRO PUR coaxkabel Low loss N-m to N-m (RG214)
     Antenna Cable Length     : 23 m
     Date Installed           : 2022-02-24T12:00Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Additional Information   : antenna -> 15 m cable -> EMP Protector
                              : HUBER-SUHNER 34U2.17A -> ~8 m cable -> receiver.
                              : 

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

5.1  Tied Marker Name         : BIG ASTRON. PILLAR
     Tied Marker Usage        : FOOTPRINT
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : 13502M001
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : 1.818 m
       dy (m)                 : 0.958 m
       dz (m)                 : -1.584 m
     Accuracy (mm)            : 1 mm
     Survey method            : TRILATERATION/TRIANGULATION/LEVELLING/GPS CAMP.
     Date Measured            : 1994-04-19
     Additional Information   : Checked twice per year using a local survey,
                              : but only significant changes will be reported

5.2  Tied Marker Name         : GPS (mark #15)
     Tied Marker Usage        : FOOTPRINT
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : 13502M003
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : 0.807 m
       dy (m)                 : -1.748 m
       dz (m)                 : -0.524 m
     Accuracy (mm)            : 1 mm
     Survey method            : TRILATERATION/TRIANGULATION/LEVELLING/GPS CAMP.
     Date Measured            : 1994-04-19
     Additional Information   : Checked twice per year using a local survey,
                              : but only significant changes will be reported

5.3  Tied Marker Name         : EUREF/GPS (mark #18)
     Tied Marker Usage        : FOOTPRINT
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : 13502M002
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : 1.596 m
       dy (m)                 : 12.563 m
       dz (m)                 : -2.121 m
     Accuracy (mm)            : 1 mm
     Survey method            : TRILATERATION/TRIANGULATION/LEVELLING/GPS CAMP.
     Date Measured            : 1994-04-19
     Additional Information   : Checked twice per year using a local survey,
                              : but only significant changes will be reported

5.4  Tied Marker Name         : GPS (mark #19)
     Tied Marker Usage        : FOOTPRINT
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : 13502M005
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : 3.344 m
       dy (m)                 : 10.491 m
       dz (m)                 : -3.358 m
     Accuracy (mm)            : 1 mm
     Survey method            : TRILATERATION/TRIANGULATION/LEVELLING/GPS CAMP.
     Date Measured            : 1994-04-19
     Additional Information   : Checked twice per year using a local survey,
                              : but only significant changes will be reported

5.5  Tied Marker Name         : GPS (mark #20)
     Tied Marker Usage        : FOOTPRINT
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : 13502M006
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : 9.491 m
       dy (m)                 : -0.936 m
       dz (m)                 : -7.480 m
     Accuracy (mm)            : 1 mm
     Survey method            : TRILATERATION/TRIANGULATION/LEVELLING/GPS CAMP.
     Date Measured            : 1994-04-19
     Additional Information   : Checked twice per year using a local survey,
                              : but only significant changes will be reported

5.6  Tied Marker Name         : GPS (mark #21)
     Tied Marker Usage        : FOOTPRINT
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : 13502M007
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : 12.008 m
       dy (m)                 : -7.080 m
       dz (m)                 : -9.073 m
     Accuracy (mm)            : 1 mm
     Survey method            : TRILATERATION/TRIANGULATION/LEVELLING/GPS CAMP.
     Date Measured            : 1994-04-19
     Additional Information   : Checked twice per year using a local survey,
                              : but only significant changes will be reported

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        : (if external)
       Effective Dates        : 1994-12-30/CCYY-MM-DD
       Notes                  : (multiple lines)

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

7.1  Instrumentation Type     : GPS
       Status                 : PERMANENT
       Effective Dates        : 1998-08-17/CCYY-MM-DD
       Notes                  : IGEX experiment. Receivers:
                              : 1. 1998-08-17/1999-02-17  ASHTECH GG24C
                              : 2. 1999-02-17/CCYY-MM-DD  JPS LEGACY GGD

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

8.1.1  Humidity Sensor Model  : HMP233
       Manufacturer           : VAISALA
       Serial Number          : P0120011
       Data Sampling Interval :    60 sec
       Accuracy (% rel h)     : 1 % rel h
       Aspiration             : NATURAL
       Height Diff to Ant     : 1.6 m
       Calibration date       : 1993-09-12
       Effective Dates        : 1994-04-19/1999-12-31
       Notes                  : Electronics: Vaisala Humidity and Temperature
                              : Transmitter HMP233; HUMICAP H-Sensor.
                              : 1% accur. between 0 and 90% RH.
                              : 2% accur. between 90 and 100% RH.

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  : PTB200A
       Manufacturer           : VAISALA
       Serial Number          : 692620
       Data Sampling Interval :  60 sec
       Accuracy               : 0.12 hPa
       Height Diff to Ant     : -2.65 m
       Calibration date       : 1993-09-12
       Effective Dates        : 1994-04-14/1999-12-31
       Notes                  : Electronics: Vaisala Pressure Transmitter
                              : PTB 200A; pressure sensor below GPS antenna

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     : HMP233
       Manufacturer           : VAISALA
       Serial Number          : P0120011
       Data Sampling Interval : 60 sec
       Accuracy               : 0.1 deg C
       Aspiration             : NATURAL
       Height Diff to Ant     : 1.6 m
       Calibration date       : 1993-09-12
       Effective Dates        : 1994-04-14/1999-12-31
       Notes                  : Electronics: Vaisala Humidity and Temperature
                              : Transmitter HMP233; Pt 100 RTD 1/3 DIN 43760B

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

9.1.1  Radio Interferences    : CELL PHONE ANTENNA
       Observed Degradations  : NONE
       Effective Dates        : 1997-03-25/CCYY-MM-DD
       Additional Information : Located on South tower, 100 meters from GNSS
                              : antennae, transmitting in a 240 degrees sector.
                              : The GNSS antennae are located in a 120 degrees
                              : sector not covered by the GSM system. Test at
                              : 5 meters from the GSM antenna have shown no
                              : degradation of the GPS, so it is very unlikely
                              : that the GPS is affected.

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)

9.2.1  Multipath Sources      : ROOF
       Effective Dates        : 1994-12-30/CCYY-MM-DD
       Additional Information : Flat roof with concrete balustrade at right
                              : angles with the roof, and several 90 degrees
                              : corners. Medium multipath effects have been
                              : observed.

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

10.1  Date                    : 1997-03-25/CCYY-MM-DD
      Event                   : Cell Phone transmission started, see 9.1.1

10.2  Date                    : 2001-11-07/CCYY-MM-DD
      Event                   : EMP Protector HUBER-SUHNER 34U2.17A installedin
                              : the antenna cable

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


11.  On-Site, Point of Contact Agency Information

     Agency                   : Delft University of Technology
                              : Department of Geoscience and Remote Sensing
                              : (GRS)
     Preferred Abbreviation   : DUT
     Mailing Address          : Stevinweg 1
                              : 2628 CN Delft
                              : Netherlands (the)
     Primary Contact
       Contact Name           : TU Delft GNSS team
       Telephone (primary)    : +31 15 2784907
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : gnss-citg@tudelft.nl
     Secondary Contact
       Contact Name           : GI-RD
       Telephone (primary)    : +31 6 52481939
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : rd@kadaster.nl
     Additional Information   : (multiple lines)




12.  Responsible Agency (if different from 11.)

     Agency                   : (multiple lines)
     Preferred Abbreviation   : (A10)
     Mailing Address          : (multiple lines)
     Primary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Secondary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Additional Information   : (multiple lines)


13.  More Information

     Primary Data Center      : DUT
     Secondary Data Center    : BKG
     URL for More Information : http://gnss1.tudelft.nl/dpga/
     Hardcopy on File
       Site Map               : ./dpga/station/Delft.html
       Site Diagram           : ./dpga/station/Delft.html
       Horizon Mask           : (Y or URL)
       Monument Description   : (Y or URL)
       Site Pictures          : ./dpga/station/Delft.html
     Additional Information   : No obstacles above 0 degrees of elevation,
                              : except for a small rod (anti lightening) 1.5 m
                              : West of the antenna, and two small 1.5 m high
                              : masts 9.5 m South-East and 14 m South-West of
                              : the antenna.
                              : More pictures available on the web-site.
                              : For more information (in Dutch) see also the
                              : official station we
     Antenna Graphics with Dimensions

SEPCHOKE_B3E6

                    ---------------                       <--  0.1550
                  /                 \
                 |                   |
+-----------------------------------------------------+   <--  0.1080  TCR
|                                                     |
|                                                     |
|                                                     |
|                                                     |
+-----------------+-----------------+-----------------+   <--  0.0480  BCR
                  |                 |
                  |                 |
                  |                 |
                  +--------x--------+                     <--  0.0000  BPA=ARP
                                                              (5/8" thread might
                                                               differ from BPA!)
                                                                       NOM=NRP
                  <--    0.1210   -->
<--                      0.3630                     -->

Changes: 16-Sep-2020: ARP changed from BAM to BPA
ARP: Antenna Reference Point
L1 : L1 Phase Center                   L2 : L2 Phase Center
TCR: Top of Chokering                  BCR: Bottom of Chokering
BPA: Bottom of Preamplifier