WES200USA Site Information Form
     NGS Continuously Operating Reference Station
     See Instructions at:
       https://files.igs.org/pub/station/general/sitelog_instr.txt

0.   Form

     Prepared by (full name)  : Francine Coloma
     Date Prepared            : 2023-08-27
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : wes2_20230825.log 
      Modified/Added Sections : 5.2


1.   Site Identification of the GNSS Monument

     Site Name                : WESTFORD
     Four Character ID        : WES2
     Monument Inscription     : (not available)
     IERS DOMES Number        : 40440S020
     CDP Number               : (not available)
     Monument Description     : STEEL TOWER
       Height of the Monument : (m)
       Monument Foundation    : (STEEL RODS, CONCRETE BLOCK, ROOF, etc)
       Foundation Depth       : (m)
     Marker Description       : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc)
     Date Installed           : 1993-02-08T00:00Z
     Geologic Characteristic  : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc)
       Bedrock Type           : (IGNEOUS/METAMORPHIC/SEDIMENTARY)
       Bedrock Condition      : (FRESH/JOINTED/WEATHERED)
       Fracture Spacing       : (1-10 cm/10-50 cm/50-200 cm/over 200 cm)
       Fault zones nearby     : (YES/NO/Name of the zone)
         Distance/activity    : (multiple lines)
     Additional Information   : (multiple lines)


2.   Site Location Information

     City or Town             : Westford
     State or Province        : Massachusetts
     Country                  : United States of America (the) 
     Tectonic Plate           : North American
     Approximate Position (ITRF)
       X coordinate (m)       : 1492233.247
       Y coordinate (m)       : -4458089.489
       Z coordinate (m)       : 4296046.035
       Latitude (N is +)      : +423648.01
       Longitude (E is +)     : -0712935.98
       Elevation (m,ellips.)  : 85.0
     Additional Information   : ARP IGS08 POSITION (EPOCH 2005.00)
                              : Published by the IGS in Nov 2010.


3.   GNSS Receiver Information

3.1  Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T146
     Firmware Version         : 2.8
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1993-02-08
     Date Removed             : 1994-07-30
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   :

3.2  Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T149
     Firmware Version         : 2.8.32.1
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1994-08-03
     Date Removed             : 1994-11-23
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   :

3.3  Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T109
     Firmware Version         : 3.0
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1994-11-23
     Date Removed             : 1995-01-05T18:40Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   :

3.4  Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T109
     Firmware Version         : 3.1 (3.0.32.2)
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1995-01-05T18:50Z
     Date Removed             : 1995-11-17
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : firmware upgrade

3.5  Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T109
     Firmware Version         : 3.2.32.1
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1995-11-17
     Date Removed             : 1996-06-09
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   :

3.6  Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T139
     Firmware Version         : 3.2.32.1
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1996-06-11
     Date Removed             : 1997-05-20
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   :

3.7  Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T145
     Firmware Version         : 3.2.32.1
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1997-05-23
     Date Removed             : 1997-10-22T17:00Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   :

3.8  Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T154
     Firmware Version         : 3.2.32.1
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1997-10-22T18:50Z
     Date Removed             : 1998-02-02T22:50Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   :

3.9  Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T160
     Firmware Version         : 3.2.32.1
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1998-02-05T13:24Z
     Date Removed             : 1998-05-31T15:48Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   :

3.10 Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T366
     Firmware Version         : 3.2.32.1
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1998-06-01T15:03Z
     Date Removed             : 1998-06-20T01:02Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   :

3.11 Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T154
     Firmware Version         : 3.2.32.1
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1998-06-22T18:45Z
     Date Removed             : 1999-05-31T23:59Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   :

3.12  Receiver Type           : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T154
     Firmware Version         : 3.2.32.8
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1999-06-01T14:27Z
     Date Removed             : 1999-08-06T14:30Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : firmware upgrade

3.13 Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T154
     Firmware Version         : 3.2.32.9
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1999-08-06T15:03Z
     Date Removed             : 2000-07-17T18:08Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : Hit by lightning

3.14 Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T271
     Firmware Version         : 3.2.32.10
     Elevation Cutoff Setting : (deg)
     Date Installed           : 2000-07-26T13:05Z
     Date Removed             : 2000-08-30T17:00Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : Uprgraded firmware

3.15 Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T271
     Firmware Version         : 3.2.32.11
     Elevation Cutoff Setting : (deg)
     Date Installed           : 2000-08-30T17:00Z
     Date Removed             : 2001-06-29T23:59Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : lightning hit

3.16 Receiver Type            : ASHTECH UZ-12
     Satellite System         : GPS
     Serial Number            : UZ1021
     Firmware Version         : ZB00
     Elevation Cutoff Setting : (deg)
     Date Installed           : 2001-07-27T00:00Z
     Date Removed             : 2002-05-18T14:49Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : lightning

3.17 Receiver Type            : ASHTECH UZ-12
     Satellite System         : GPS
     Serial Number            : UZ1021
     Firmware Version         : ZC00
     Elevation Cutoff Setting : (deg)
     Date Installed           : 2002-06-07T18:00Z
     Date Removed             : 2002-07-23T20:00Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : power outage caused failure of GPS receiver
                              : and met communications

3.18 Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : T325
     Firmware Version         : 3.2.32.11
     Elevation Cutoff Setting : 4
     Date Installed           : 2002-10-10T00:00Z
     Date Removed             : 2007-09-21
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   :

3.19 Receiver Type            : ASHTECH UZ-12
     Satellite System         : GPS
     Serial Number            : ZR220028502
     Firmware Version         : CK00
     Elevation Cutoff Setting : 5
     Date Installed           : 2007-09-21
     Date Removed             : 2009-04-09T12:55Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   :

3.20 Receiver Type            : ASHTECH UZ-12
     Satellite System         : GPS
     Serial Number            : UC120034003
     Firmware Version         : CQ00
     Elevation Cutoff Setting : 5
     Date Installed           : 2009-04-09T12:55Z
     Date Removed             : 2009-12-01
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : Receiver upgrade.

3.21 Receiver Type            : LEICA GRX1200GGPRO
     Satellite System         : GPS+GLO
     Serial Number            : 351251
     Firmware Version         : 7.50
     Elevation Cutoff Setting : 5
     Date Installed           : 2009-12-01T00:00Z
     Date Removed             : 2010-04-16T16:30Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : Serial number corrected 12-15-2009.

3.22 Receiver Type            : LEICA GRX1200GGPRO
     Satellite System         : GPS+GLO
     Serial Number            : 351251
     Firmware Version         : 7.80
     Elevation Cutoff Setting : 5
     Date Installed           : 2010-04-16T16:30Z
     Date Removed             : 2010-05-05T00:00Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : Serial number corrected 12-15-2009.

3.23 Receiver Type            : LEICA GRX1200GGPRO
     Satellite System         : GPS+GLO
     Serial Number            : 351251
     Firmware Version         : 7.80 / IME 3.019
     Elevation Cutoff Setting : 0
     Date Installed           : 2010-05-05T00:00Z
     Date Removed             : 2010-08-10T12:03Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : added IME in firmware version

3.24 Receiver Type            : LEICA GRX1200GGPRO
     Satellite System         : GPS+GLO
     Serial Number            : 351251
     Firmware Version         : 8.00 / IME 3.019
     Elevation Cutoff Setting : 0
     Date Installed           : 2010-08-10T12:03Z
     Date Removed             : 2011-06-23T17:30Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : added IME in firmware version

3.25 Receiver Type            : LEICA GRX1200GGPRO
     Satellite System         : GPS+GLO
     Serial Number            : 351258
     Firmware Version         : 8.20/IME3.019
     Elevation Cutoff Setting : 0
     Date Installed           : 2011-06-23T17:30Z
     Date Removed             : 2014-06-25T00:00Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)

3.26 Receiver Type            : SEPT POLARX4TR
     Satellite System         : GPS+GLO
     Serial Number            : 3001280
     Firmware Version         : 2.5.2
     Elevation Cutoff Setting : 0
     Date Installed           : 2014-06-25T00:00Z
     Date Removed             : 2015-07-28T00:00Z 
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)

3.27 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 1870618
     Firmware Version         : 4.11/7.102
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-11-28T17:00Z
     Date Removed             : 2018-03-06T18:53Z 
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : New receiver become full GNSS (GPS,GLO,GAL,BDS)
                              : corrected f/w 2017-11-29
                              : 06-MAR-2018 firmware update

3.28 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 1870618
     Firmware Version         : 4.20/7.300
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-03-06T18:55Z
     Date Removed             : 2018-08-09T00:00Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)

3.29 Receiver Type            : TRIMBLE NETRS
     Satellite System         : GPS
     Serial Number            : 4913168924
     Firmware Version         : 1.3-2
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-08-09T00:00Z
     Date Removed             : 2018-11-22T00:00Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : new receiver

3.30 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 3013487
     Firmware Version         : 5.1.2
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-11-22T00:00Z
     Date Removed             : 2018-12-20T17:05Z 
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : new receiver
                              : s/n on SEPT case is 4501416
                              : 2018-DEC-20 firmware update

3.31 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 3013487
     Firmware Version         : 5.2.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-12-20T17:05Z
     Date Removed             : 2019-05-16T15:00Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : 2019-MAY-16 JPL loaner removed 

3.32 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 3025692 
     Firmware Version         : 5.2.0 
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-05-16T15:15Z
     Date Removed             : 2020-01-31T15:10Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : Electronic SSID used above.   
                              : s/n on SEPT case is 4502279

3.33 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 3025692 
     Firmware Version         : 5.3.0 
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-01-31T15:20Z
     Date Removed             : 2020-02-21T20:37Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : Firmware update   

3.34 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 3025692 
     Firmware Version         : 5.3.2 
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-02-21T20:43Z
     Date Removed             : 2020-12-09T16:30Z 
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : Receiver fail due to lightning strike` 

3.35 Receiver Type            : TRIMBLE ALLOY 
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 6026R40020
     Firmware Version         : 5.45 
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2021-02-26T00:00Z
     Date Removed             : 2021-07-22T18:50Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)   

3.36 Receiver Type            : TRIMBLE ALLOY 
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 6026R40020
     Firmware Version         : 6.10/5.50
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2021-07-22T18:50Z
     Date Removed             : 2021-10-05T00:33Z 
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : new firmware

3.37 Receiver Type            : TRIMBLE ALLOY 
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 6026R40020
     Firmware Version         : 6.12/5.52
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2021-10-05T00:40Z
     Date Removed             : 2021-11-29T20:30Z 
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : Firmware downgrade to 5.45 version 
                              :  as fault discovered with 6.12

3.38 Receiver Type            : TRIMBLE ALLOY 
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 6026R40020
     Firmware Version         : NP 6.05 / SP 5.45
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2021-11-29T20:41Z
     Date Removed             : 2022-08-09T15:08Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : firmware corrected

3.39 Receiver Type            : TRIMBLE ALLOY 
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 6026R40020
     Firmware Version         : NP 6.05 / SP 5.45
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2022-08-09T15:10Z
     Date Removed             : 2023-01-27T17:40Z 
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : Updated receiver option to have HTTPS+Cert
                              :  capability
                              : Firmware update

3.40 Receiver Type            : TRIMBLE ALLOY 
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 6026R40020
     Firmware Version         : NP 6.16 / SP 5.56
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2023-01-27T17:49Z
     Date Removed             : 2023-07-07T19:40Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : Firware update 

3.41 Receiver Type            : TRIMBLE ALLOY 
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 6026R40020
     Firmware Version         : NP 6.20 / SP 5.60
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2023-07-07T19:46Z
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)


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             : AOAD/M_T        NONE
     Serial Number            : 146
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1993-02-08
     Date Removed             : 1994-07-08
     Additional Information   :

4.2  Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 125
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1994-07-08
     Date Removed             : 1994-07-30
     Additional Information   :

4.3  Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 145
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1994-08-03
     Date Removed             : 1995-08-07
     Additional Information   :

4.4  Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 114
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1995-08-08
     Date Removed             : 1995-09-01
     Additional Information   :

4.5  Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 146 (w/single notch)
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1995-09-06
     Date Removed             : 1996-03-29
     Additional Information   :

4.6  Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 118
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1996-03-29
     Date Removed             : 1996-06-04
     Additional Information   :

4.7  Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 293
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1996-06-04
     Date Removed             : 1996-06-09
     Additional Information   :

4.8  Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 146
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1996-06-11
     Date Removed             : 1996-07-01
     Additional Information   :

4.9  Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 394
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1996-07-01
     Date Removed             : 1997-05-22
     Additional Information   :

4.10 Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 223
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1997-05-22
     Date Removed             : 1997-06-30T21:48Z
     Additional Information   :

4.11 Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 114
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1997-06-30T22:06Z
     Date Removed             : 1998-05-31T15:48Z
     Additional Information   : (multiple lines)

4.12 Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 104
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1998-06-01T15:03Z
     Date Removed             : 2000-07-17T18:08Z
     Additional Information   : Hit by lightning

4.13 Antenna Type             : AOAD/M_TA_NGS   NONE
     Serial Number            : 411
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2000-07-26T13:05Z
     Date Removed             : 2000-08-16T12:14Z
     Additional Information   : Antenna not working

4.14 Antenna Type             : AOAD/M_T        NONE
     Serial Number            : 398
     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    :
     Antenna Radome Type      : NONE
     Radome Serial Number     :
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2000-08-22T17:46Z
     Date Removed             : 2001-06-29T23:59Z
     Additional Information   : lightning hit

4.15 Antenna Type             : AOAD/M_TA_NGS   NONE
     Serial Number            : 343
     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       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2001-07-27T00:00Z
     Date Removed             : 2014-06-24T13:20Z
     Additional Information   : Antenna update

4.16 Antenna Type             : JAVRINGANT_DM   NONE
     Serial Number            : 00476
     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       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2014-06-24T14:00Z
     Date Removed             : 2015-07-28T00:00Z
     Additional Information   : (multiple lines)

4.17 Antenna Type             : JAVRINGANT_DM   NONE
     Serial Number            : 00478
     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       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2017-11-28T17:00Z
     Date Removed             : 2018-08-13T14:00Z
     Additional Information   : (multiple lines)

4.18 Antenna Type             : TRM41249.00     NONE
     Serial Number            : 60101140
     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       : heliax
     Antenna Cable Length     : 60 m
     Date Installed           : 2018-08-13T14:00Z
     Date Removed             : 2018-11-26T15:45Z
     Additional Information   : new antenna

4.19 Antenna Type             : TRM59800.00     NONE
     Serial Number            : 5334354786
     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       : heliax
     Antenna Cable Length     : 60 m
     Date Installed           : 2018-11-26T15:45Z
     Date Removed             : 2019-05-16T15:00Z
     Additional Information   : new antenna
                              : 2019-MAY-16 returned JPL borrowed antenna

4.20 Antenna Type             : JAVRINGANT_DM   NONE
     Serial Number            : 00448 
     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       : heliax
     Antenna Cable Length     : 60 m
     Date Installed           : 2019-05-16T18:30Z
     Date Removed             : 2020-01-31T15:10Z 
     Additional Information   : Antenna change 

4.21 Antenna Type             : TPSCR4          NONE
     Serial Number            : 265-0150 
     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       : heliax
     Antenna Cable Length     : 60 m
     Date Installed           : 2020-01-31T15:20Z
     Date Removed             : 2020-12-09T16:30Z 
     Additional Information   : Antenna replaced, lightning strike 

4.22 Antenna Type             : JAVRINGANT_DM   SCIS
     Serial Number            : 00479 
     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      : SCIS
     Radome Serial Number     : 2576
     Antenna Cable Type       : LMR-600  
     Antenna Cable Length     : 82 m
     Date Installed           : 2021-02-26T00:00Z 
     Date Removed             : 2021-10-28T17:30Z 
     Additional Information   : Antenna failure 

4.23 Antenna Type             : TWIVC6150       SCIS
     Serial Number            : 202109220004 
     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      : SCIS
     Radome Serial Number     : 2576
     Antenna Cable Type       : LMR-600  
     Antenna Cable Length     : 82 m
     Date Installed           : 2021-10-28T18:00Z 
     Date Removed             : 2023-08-14T17:00Z
     Additional Information   : PN: 33-VC6150-14 
                              : 2023-JUL-05 Alex and Tony perform maintenance
                              :    on antenna cable, antenna end.  Remove 
                              :    several inches of cable then replace TNC
                              :    connector.
                              : 2023-AUG-14 Antenna replaced

4.24 Antenna Type             : TWIVC6150       SCIS
     Serial Number            : 202109220003 
     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      : SCIS
     Radome Serial Number     : 2576
     Antenna Cable Type       : LMR-600  
     Antenna Cable Length     : 82 m
     Date Installed           : 2023-08-14T18:00Z 
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)

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         : Westford VLBI  4. 6. 6.  96-10-04
     Tied Marker Usage        : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc)
     Tied Marker CDP Number   : 7209
     Tied Marker DOMES Number : 40440S003
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : -26.796
       dy (m)                 : -41.022
       dz (m)                 : -30.476
     Accuracy (mm)            : 4. 6. 6. 
     Survey method            : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc)
     Date Measured            : 1996-10-04
     Additional Information   : (multiple lines)

5.2  Tied Marker Name         : Westford VLBI 
     Tied Marker Usage        : VLBI
     Tied Marker CDP Number   : 7209
     Tied Marker DOMES Number : 40440S003
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : -26.7848
       dy (m)                 : -41.0195
       dz (m)                 : -30.4744
     Accuracy (mm)            : 2.7 
     Survey method            : GPS CAMPAIGN
     Date Measured            : 2019-05-17 
     Additional Information   : 2023-AUG-25 FSC per IGS the Accuracy (mm) value
                              :  is currently defined to be  restricted to a 
                              :  single value.  Per IGS Markus Bradke, we shall
                              :  take an average of the NGS surveyed values of
                              :    Accuracy (mm)    : 3. 2. 3.(mm)
                              :  As shown in the local site survey report in 2019 
                              :    authored by Benjamin Erickson, Kevin Jordan,
                              :    Steven Breidenbach
                              :  named Westford_Report_2019.pdf
                              : 2023-AUG-27 FSC dx, dy, dz to 4th digit                        

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            : H-MASER
       Input Frequency        :
       Effective Dates        : 1993-02-08/1996-06-11
       Notes                  : (multiple lines)

6.2  Standard Type            : INTERNAL
       Input Frequency        :
       Effective Dates        : 1996-06-11/1996-06-28
       Notes                  : (multiple lines)

6.3  Standard Type            : H-MASER
       Input Frequency        :
       Effective Dates        : 1996-06-28/1998-02-06
       Notes                  : (multiple lines)

6.4  Standard Type            : INTERNAL
       Input Frequency        :
       Effective Dates        : 1998-02-06/1998-02-09
       Notes                  : (multiple lines)

6.5  Standard Type            : H-MASER
       Input Frequency        :
       Effective Dates        : 1998-02-09/1998-03-31
       Notes                  : (multiple lines)

6.6  Standard Type            : INTERNAL
       Input Frequency        :
       Effective Dates        : 1998-03-31/1998-04-09
       Notes                  : (multiple lines)

6.7  Standard Type            : H-MASER
       Input Frequency        :
       Effective Dates        : 1998-04-09/CCYY-MM-DD
       Notes                  : (multiple lines)

6.8  Standard Type            : INTERNAL
       Input Frequency        :
       Effective Dates        : 2007-06-21/2009-04-07
       Notes                  : (multiple lines)

6.9  Standard Type            : H-MASER
       Input Frequency        : 5 Mhz
       Effective Dates        : 2009-04-07/2014-06-24
       Notes                  : (multiple lines)

6.10 Standard Type            : H-MASER
       Input Frequency        : 10 Mhz
       Effective Dates        : 2021-02-26/CCYY-MM-DD
       Notes                  : Equipment has following tags:
                              :   NR-4, DOC/NOAA 86916, NASA VLB335
                              :   NASA 743742

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

8.1.1 Humidity Sensor Model   : HUMICA H-sensor (pn 16663)
       Manufacturer           : Vaisala
       Serial Number          :
       Data Sampling Interval : 15 seconds
       Accuracy (% rel h)     : 1%
       Aspiration             : (UNASPIRATED/NATURAL/FAN/etc)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : 1998-07-27/CCYY-MM-DD
       Notes                  : NOAA GSOS # XXX

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   : PTB220
       Manufacturer           : Vaisala
       Serial Number          :
       Data Sampling Interval : 15 seconds
       Accuracy               : 0.1
       Height Diff to Ant     : ~ 1.1 m
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : 1998-07-27/CCYY-MM-DD
       Notes                  : NOAA GSOS # XXX

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      : PT 100 RTD 1/s DIN 43760B
       Manufacturer           : Vaisala
       Serial Number          :
       Data Sampling Interval : 15 seconds
       Accuracy               : 0.1
       Aspiration             : (UNASPIRATED/NATURAL/FAN/etc)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : 1998-07-27/CCYY-MM-DD
       Notes                  : NOAA GSOS # XXX
                              : Accuracy is +/- 0.1 @ 20.0C

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  :
       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)

8.4.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  : (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)

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                   : Haystack Observatory
     Preferred Abbreviation   : MITHAYSTAK
     Mailing Address          : Route 40
                              : Westford, MA 018866
     Primary Contact
       Contact Name           : Mike Poirier
       Telephone (primary)    : 617-715-5556
       Telephone (secondary)  : 617-715-5554
       Fax                    : 
       E-mail                 : Mpoirier@mit.edu
     Secondary Contact
       Contact Name           : Alex Burns
       Telephone (primary)    : 617-715-5506
       Telephone (secondary)  : 
       Fax                    :
       E-mail                 : Aburns6@mit.edu
     Additional Information   : (multiple lines)


12.  Responsible Agency (if different from 11.)

     Agency                   : NOAA-National Geodetic Survey
     Preferred Abbreviation   : NOAA-NGS
     Mailing Address          : NOAA, N/NGS6, SSMC3-9111
                              : 1315 East-West Hwy.
                              : Silver Spring, MD 20896, USA
     Primary Contact
       Contact Name           : Don Haw 
       Telephone (primary)    : 240-533-9676
       Telephone (secondary)  : 240-533-9681 (Lijuan Sun)
       Fax                    : 301-713-4324
       E-mail                 : ngs.corscollector@noaa.gov
     Secondary Contact
       Contact Name           : Francine Coloma 
       Telephone (primary)    : 301-713-3242
       Telephone (secondary)  :
       Fax                    : 
       E-mail                 : ngs.corscollector@noaa.gov
     Additional Information   : (multiple lines)


13.  More Information

     Primary Data Center      : https://geodesy.noaa.gov/corsdata/
     Secondary Data Center    : 
     URL for More Information : https://geodesy.noaa.gov/CORS
       Hardcopy on File
       Site Map               : (Y or URL)
       Site Diagram           : X
       Horizon Mask           : (Y)
       Monument Description   : (Y)
       Site Pictures          : (Y)
     Additional Information   : (multiple lines)
     Antenna Graphics with Dimensions
       https://files.igs.org/pub/station/general/antenna.gra