HNPT Site Information Form
     International GPS Service
     See Instructions at:
       ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt

0.   Form

     Prepared by (full name)  : Miranda Chin
     Date Prepared            : 2004-03-22
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : hnpt_20010808.log
      Modified/Added Sections : 3.9;10;

1.  Site Identification of the GNSS Monument

     Site Name                : Horn Point Enviromental Lab.
     Four Character ID        : HNPT
     Monument Inscription     : 
     IERS DOMES Number        : 49913S001
     CDP Number               : (A4)
     Monument Description     : STEEL MAST
       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           : 1995-12-13
     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)
                              : (multiple lines)

2.   Site Location Information

     City or Town             : Cambridge
     State or Province        : Maryland
     Country                  : USA
     Tectonic Plate           : North American
     Approximate Position (ITRF)
       X coordinate (m)       : 1196625.3706
       Y coordinate (m)       : -4846358.9001
       Z coordinate (m)       : 3956722.0949
       Latitude (N is +)      : +383516.80
       Longitude (E is +)     : -0760751.60
       Elevation (m,ellips.)  : -27.4763
     Additional Information   : (multiple lines)

3.  GNSS Receiver Information


3.1  Receiver Type            : ROGUE SNR-12
     Satellite System         : (GPS/GLONASS/GPS+GLONASS)
     Serial Number            : T210
     Firmware Version         : 3.2.32.1
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1995-12-13
     Date Removed             : 1997-05-15
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : 

3.2  Receiver Type            : ROGUE SNR-8000
     Satellite System         : (GPS/GLONASS/GPS+GLONASS)
     Serial Number            : T371
     Firmware Version         : 3.2.32.1
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1997-05-16
     Date Removed             : 1999-04-29T14:19Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : 

3.3  Receiver Type            : ROGUE SNR-8000
     Satellite System         : (GPS/GLONASS/GPS+GLONASS)
     Serial Number            : T371
     Firmware Version         : 3.2.32.8
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1999-04-30T00:00Z
     Date Removed             : 1999-08-09T14:50Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : firmware upgrade

3.4  Receiver Type            : ROGUE SNR-8000
     Satellite System         : (GPS/GLONASS/GPS+GLONASS)
     Serial Number            : T371
     Firmware Version         : 3.2.32.9
     Elevation Cutoff Setting : (deg)
     Date Installed           : 1999-08-09T15:03Z
     Date Removed             : 2000-05-10T23:36Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : station hit by lightning

3.5  Receiver Type            : ROGUE SNR-8000
     Satellite System         : (GPS/GLONASS/GPS+GLONASS)
     Serial Number            : T148
     Firmware Version         : 3.2.32.9
     Elevation Cutoff Setting : (deg)
     Date Installed           : 2000-05-22T13:22Z
     Date Removed             : 2000-08-09T00:00Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : Upgraded firmware

3.6  Receiver Type            : ROGUE SNR-8000
     Satellite System         : (GPS/GLONASS/GPS+GLONASS)
     Serial Number            : T148
     Firmware Version         : 3.2.32.11
     Elevation Cutoff Setting : (deg)
     Date Installed           : 2000-08-09T13:37Z
     Date Removed             : 2001-03-28T18:20Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : 

3.7  Receiver Type            : TRIMBLE 4000SSI
     Satellite System         : (GPS/GLONASS/GPS+GLONASS)
     Serial Number            : 3912A25531
     Firmware Version         : 7.29
     Elevation Cutoff Setting : (deg)
     Date Installed           : 2001-04-25T00:00Z
     Date Removed             : 2001-07-17T13:37Z
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)

3.8  Receiver Type            : ROGUE SNR-8000
     Satellite System         : (GPS/GLONASS/GPS+GLONASS)
     Serial Number            : T366
     Firmware Version         : 3.2.32.11
     Elevation Cutoff Setting : (deg)
     Date Installed           : 2001-08-03T13:34Z
     Date Removed             : 2004-02-11 
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)

3.9  Receiver Type            : LEICA RS500
     Satellite System         : GPS
     Serial Number            : 80155
     Firmware Version         : 4.20
     Elevation Cutoff Setting : (deg)
     Date Installed           : 2004-02-11
     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/GLONASS/GPS+GLONASS)
     Serial Number            : (A5)
     Firmware Version         : (A11)
     Elevation Cutoff Setting : (deg)
     Date Installed           : (CCYY-MM-DDThh:mmZ)
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)

4.  GNSS Antenna Information


4.1  Antenna Type             : AOAD/M_T
     Serial Number            : 196
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 0.0
     Marker->ARP North Ecc(m) : (F8.4)
     Marker->ARP East Ecc(m)  : (F8.4)
     Alignment from True N    : 
     Antenna Radome Type      : NONE
     Radome Serial Number     : 
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1995-12-13
     Date Removed             : 1999-01-24T23:59Z
     Additional Information   : 

4.2  Antenna Type             : AOAD/M_TA_NGS
     Serial Number            : 398
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 0.0
     Marker->ARP North Ecc(m) : (F8.4)
     Marker->ARP East Ecc(m)  : (F8.4)
     Alignment from True N    : 
     Antenna Radome Type      : NONE
     Radome Serial Number     : 
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 1999-01-26T00:00Z
     Date Removed             : 2000-05-10T23:36Z
     Additional Information   : Dorne Margolin with chokering retrofit
                              : with Ashtech LNA

4.3  Antenna Type             : ASH700936E      SNOW
     Serial Number            : CR519993605
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 0.0
     Marker->ARP North Ecc(m) : (F8.4)
     Marker->ARP East Ecc(m)  : (F8.4)
     Alignment from True N    : 
     Antenna Radome Type      : SNOW
     Radome Serial Number     : 
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2000-05-22T13:22Z
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Additional Information   : 

4.x  Antenna Type             : (A20, from rcvr_ant.tab; see instructions)
     Serial Number            : (A*, but note the first A5 is used in SINEX)
     Antenna Reference Point  : (BPA/BCR/XXX from "antenna.gra"; see instr.)
     Marker->ARP Up Ecc. (m)  : (F8.4)
     Marker->ARP North Ecc(m) : (F8.4)
     Marker->ARP East Ecc(m)  : (F8.4)
     Alignment from True N    : (deg; + is clockwise/east)
     Antenna Radome Type      : (A4 from rcvr_ant.tab; see instructions)
     Radome Serial Number     : 
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : (CCYY-MM-DDThh:mmZ)
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)

5.  Surveyed Local Ties


5.x  Tied Marker Name         : 
     Tied Marker Usage        : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc)
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : (A9)
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : 
       dy (m)                 : 
       dz (m)                 : 
     Accuracy (mm)            : (mm)
     Survey method            : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc)
     Date Measured            : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)

6.   Frequency Standard


6.1  Standard Type            : INTERNAL
       Input Frequency        : 
       Effective Dates        : 1995-12-13/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.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  : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : 
       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)

8.1.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  : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : 
       Accuracy               : (mbar)
       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)

8.3.1  Temp. Sensor Model     : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : 
       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)

8.3.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                   : National Geodetic Survey
     Preferred Abbreviation   : NGS
     Mailing Address          : 1315 East West Hwy
                              : Silver Spring, MD 20910
     Primary Contact
       Contact Name           : Linda Nussear
       Telephone (primary)    : 301-713-2845
       Telephone (secondary)  : 
       Fax                    : 301-713-4475
       E-mail                 : Linda.S.Nussear@noaa.gov
     Secondary Contact
       Contact Name           : Frank Marion
       Telephone (primary)    : 301-713-3094
       Telephone (secondary)  : 
       Fax                    : 301-713-4475
       E-mail                 : Frank.E.Marion@noaa.gov
     Additional Information   : (multiple lines)

12.  Responsible Agency (if different from 11.)

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

13.  More Information

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



    http://www.grdl.noaa.gov/GRD/GPS/Projects/ANTCAL/