HNPT00USA Site Information Form (site log) International GNSS Service See Instructions at: https://ftp.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Francine Coloma Date Prepared : 2021-09-08 Report Type : UPDATE If Update: Previous Site Log : hnpt_20210323.log Modified/Added Sections : 2 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 : Monument Description : STEEL MAST Height of the Monument : 4.3 m Monument Foundation : Foundation Depth : Marker Description : Date Installed : 1995-12-13T00:00Z Geologic Characteristic : Bedrock Type : Bedrock Condition : Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : 2. Site Location Information City or Town : Cambridge State or Province : Maryland Country : United States of America (the) Tectonic Plate : NORTH AMERICAN Approximate Position (ITRF) X coordinate (m) : 1196626.343 Y coordinate (m) : -4846358.500 Z coordinate (m) : 3956723.115 Latitude (N is +) : +383519.74 Longitude (E is +) : -0760749.34 Elevation (m,ellips.) : -28.0 Additional Information : ARP IGS08 POSITION (EPOCH 2005.00) : Computed in Aug 2011 using data through gpswk : 1631. 3. GNSS Receiver Information 3.1 Receiver Type : ROGUE SNR-12 Satellite System : GPS Serial Number : T210 Firmware Version : 3.2.32.1 Elevation Cutoff Setting : Date Installed : 1995-12-13T00:00Z Date Removed : 1997-05-15T00:00Z Temperature Stabiliz. : Additional Information : 3.2 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : T371 Firmware Version : 3.2.32.1 Elevation Cutoff Setting : Date Installed : 1997-05-16T00:00Z Date Removed : 1999-04-29T14:19Z Temperature Stabiliz. : Additional Information : 3.3 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : T371 Firmware Version : 3.2.32.8 Elevation Cutoff Setting : Date Installed : 1999-04-30T00:00Z Date Removed : 1999-08-09T14:50Z Temperature Stabiliz. : Additional Information : firmware upgrade 3.4 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : T371 Firmware Version : 3.2.32.9 Elevation Cutoff Setting : Date Installed : 1999-08-09T15:03Z Date Removed : 2000-05-10T23:36Z Temperature Stabiliz. : Additional Information : station hit by lightning 3.5 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : T148 Firmware Version : 3.2.32.9 Elevation Cutoff Setting : Date Installed : 2000-05-22T13:22Z Date Removed : 2000-08-09T00:00Z Temperature Stabiliz. : Additional Information : Upgraded firmware 3.6 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : T148 Firmware Version : 3.2.32.11 Elevation Cutoff Setting : Date Installed : 2000-08-09T13:37Z Date Removed : 2001-03-28T18:20Z Temperature Stabiliz. : Additional Information : 3.7 Receiver Type : TRIMBLE 4000SSI Satellite System : GPS Serial Number : 3912A25531 Firmware Version : 7.29 Elevation Cutoff Setting : Date Installed : 2001-04-25T00:00Z Date Removed : 2001-07-17T13:37Z Temperature Stabiliz. : Additional Information : 3.8 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : T366 Firmware Version : 3.2.32.11 Elevation Cutoff Setting : Date Installed : 2001-08-03T13:34Z Date Removed : 2004-02-11T00:00Z Temperature Stabiliz. : Additional Information : 3.9 Receiver Type : LEICA RS500 Satellite System : GPS Serial Number : 80155 Firmware Version : 4.20 Elevation Cutoff Setting : Date Installed : 2004-02-11T00:00Z Date Removed : 2006-08-01T00:00Z Temperature Stabiliz. : Additional Information : 3.10 Receiver Type : LEICA RS500 Satellite System : GPS Serial Number : 80155 Firmware Version : 4.20 Elevation Cutoff Setting : 5 deg Date Installed : 2006-08-01T00:00Z Date Removed : 2007-06-14T00:00Z Temperature Stabiliz. : Additional Information : Receiver replace. 3.11 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 351085 Firmware Version : 5.10 Elevation Cutoff Setting : 5 deg Date Installed : 2007-06-14T00:00Z Date Removed : 2007-11-01T00:00Z Temperature Stabiliz. : Additional Information : Receiver firmware replaced. 3.12 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 351085 Firmware Version : 5.60 Elevation Cutoff Setting : 5 deg Date Installed : 2007-11-01T00:00Z Date Removed : 2009-07-30T00:00Z Temperature Stabiliz. : Additional Information : Firmware upgrade. 3.13 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 351085 Firmware Version : 7.53 Elevation Cutoff Setting : 5 deg Date Installed : 2009-07-30T00:00Z Date Removed : 2010-03-22T17:58Z Temperature Stabiliz. : Additional Information : (multiple Lines) 3.14 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 351085 Firmware Version : 7.8 Elevation Cutoff Setting : 0 deg Date Installed : 2010-03-22T17:58Z Date Removed : 2010-05-04T19:10Z Temperature Stabiliz. : Additional Information : (multiple Lines) 3.15 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 351085 Firmware Version : 7.80 / IME 3.019 Elevation Cutoff Setting : 0 deg Date Installed : 2010-05-04T19:10Z Date Removed : 2011-05-13T19:47Z Temperature Stabiliz. : Additional Information : (multiple Lines) 3.16 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 351085 Firmware Version : 8.10/IME 3.019 Elevation Cutoff Setting : 0 deg Date Installed : 2011-05-13T19:47Z Date Removed : 2013-04-19T16:24Z Temperature Stabiliz. : Additional Information : (multiple Lines) 3.17 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 351085 Firmware Version : 8.20/IME 3.019 Elevation Cutoff Setting : 0 deg Date Installed : 2013-04-19T16:24Z Date Removed : 2014-08-06T16:05Z Temperature Stabiliz. : Additional Information : (multiple Lines) 3.18 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 351085 Firmware Version : 8.20/IME3.055 Elevation Cutoff Setting : 0 deg Date Installed : 2014-08-06T16:05Z Date Removed : 2019-03-14T00:00Z Temperature Stabiliz. : Additional Information : Firmware update 3.19 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 351085 Firmware Version : 9.20/IME3.823 Elevation Cutoff Setting : 0 deg Date Installed : 2019-03-14T00:00Z Date Removed : 2021-01-27T17:00Z Temperature Stabiliz. : Additional Information : Receiver replaced. Faulty pigtail cable from : the lightning suppressor to the recevier was : replaced 3.20 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL Serial Number : 1870590 Firmware Version : 4.30/7.402 Elevation Cutoff Setting : 0 deg Date Installed : 2021-01-27T17:57Z Date Removed : 2021-03-22T16:40Z Temperature Stabiliz. : Additional Information : Receiver replaced. Previous receiver fail : 2021-050 due to faulty power adapter 3.21 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL Serial Number : 1870596 Firmware Version : 4.30/7.402 Elevation Cutoff Setting : 0 deg Date Installed : 2021-03-22T16:43Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : Additional Information : 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 : 196 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 : Antenna Cable Length : Date Installed : 1995-12-13T00:00Z Date Removed : 1999-01-24T23:59Z Additional Information : 2009-03-18 Set Marker Ecc North and East : from F8.4 to 0.0000 4.2 Antenna Type : AOAD/M_TA_NGS 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 : Antenna Cable Length : Date Installed : 1999-01-26T00:00Z Date Removed : 2000-05-10T23:36Z Additional Information : Dorne Margolin with chokering retrofit : with Ashtech LNA : 2009-03-18 Set Marker Ecc North and East : from F8.4 to 0.0000 4.3 Antenna Type : ASH700936E SNOW Serial Number : CR519993605 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 : SNOW Radome Serial Number : Antenna Cable Type : Antenna Cable Length : Date Installed : 2000-05-22T13:22Z Date Removed : 2007-06-14T00:00Z Additional Information : Antenna removed. : 2009-03-18 Set Marker Ecc North and East : from F8.4 to 0.0000 4.4 Antenna Type : LEIAX1202GG NONE Serial Number : 06300058 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 : +038 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Antenna Cable Length : Date Installed : 2007-06-14T00:00Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : 2021-01-27 JG finds antenna pointing ~38 deg : from True North. The concrete slab supporting : the triaxial tower monument is being undercut : by soil erosion. An unnecessary inline : antenna cable splitter was removed 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 : 1995-12-13/CCYY-MM-DD Notes : 6.x Standard Type : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc) Input Frequency : (if external) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 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 : University of Maryland Center for Environmental : Studies Horn Point Laboratory Preferred Abbreviation : UMCES Mailing Address : 2020 Horns Point Road : Cambridge, MD 21613 Primary Contact Contact Name : Jason Beveridge Telephone (primary) : 410.221.8374 Telephone (secondary) : Fax : E-mail : jbeveridge@umces.edu Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 12. Responsible Agency (if different from 11.) Agency : NOAA-National Geodetic Survey Preferred Abbreviation : NOAA-NGS Mailing Address : 1315 East-West Hwy. : Silver Spring, MD 20910, USA Primary Contact Contact Name : Don Haw Telephone (primary) : 240-533-9676 Telephone (secondary) : Fax : E-mail : ngs.corscollector@noaa.gov Secondary Contact Contact Name : Fran Coloma Telephone (primary) : 303-497-3692 Telephone (secondary) : Fax : E-mail : ngs.corscollector@noaa.gov Additional Information : 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 : Site Diagram : (Y) Horizon Mask : (Y) Monument Description : (Y) Site Pictures : (Y) Additional Information : Antenna Graphics with Dimensions https://files.igs.org/pub/station/general/antenna.gra