NIST00USA 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) : Bijunath R. Patla Date Prepared : 2022-06-15 Report Type : UPDATE If Update: Previous Site Log : nist_20150514.log Modified/Added Sections : 2,3.2,4.2,11,12,13 1. Site Identification of the GNSS Monument Site Name : NIST antenna at NIST Four Character ID : NIST Monument Inscription : IERS DOMES Number : 49507M002 CDP Number : Monument Description : 4.6m metal tower on rooftop. Height of the Monument : Monument Foundation : Roof of bldg Foundation Depth : Marker Description : No geodetic marker, ARP only Date Installed : 2002-01-01T00:00Z Geologic Characteristic : Bedrock Type : Bedrock Condition : Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : The reference is antenna ARP only, mounted on : a forced centering threaded rod that is bolted : to a metal tower. The tower sits on the roof : of NIST Building 1. 2. Site Location Information City or Town : Boulder State or Province : Colorado Country : United States of America (the) Tectonic Plate : NORTH AMERICAN Approximate Position (ITRF) X coordinate (m) : -1288398.567 Y coordinate (m) : -4721696.932 Z coordinate (m) : 4078625.350 Latitude (N is +) : +395942.24 Longitude (E is +) : -1051545.38 Elevation (m,ellips.) : 1648.353 Additional Information : ITRF14 2022-06-20 3. GNSS Receiver Information 3.1 Receiver Type : NOV OEM4-G2 Satellite System : GPS Serial Number : SWU04029169 Firmware Version : 2.200-L1L2W Elevation Cutoff Setting : 5.0 deg Date Installed : 2006-05-10T00:00Z Date Removed : 2022-06-14T22:00Z Temperature Stabiliz. : NONE Additional Information : 3.2 Receiver Type : SEPT POLARX5TR Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS Serial Number : 3069423 Firmware Version : 5.4.0 Elevation Cutoff Setting : 0.0 deg Date Installed : 2022-06-15T00:00Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : NONE 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 : NOV702 NONE Serial Number : 04230007 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0 Marker->ARP North Ecc(m) : 0.0 Marker->ARP East Ecc(m) : 0.0 Alignment from True N : 0 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Andrew LDF2-50 Antenna Cable Length : 70.1 m Date Installed : 2006-05-10T00:00Z Date Removed : 2022-06-17T16:00Z Additional Information : 4.2 Antenna Type : NOV750.R4 NONE Serial Number : NDE11330004 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0 Marker->ARP North Ecc(m) : 0.0 Marker->ARP East Ecc(m) : 0.0 Alignment from True N : 0 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Andrew LDF2-50 Antenna Cable Length : 70.1 m Date Installed : 2022-06-17T18:00Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : 4.x Antenna Type : (A20, from rcvr_ant.tab; see instructions) Serial Number : (A*, but note the first A5 is used in SINEX) Antenna Reference Point : (BPA/BCR/XXX from "antenna.gra"; see instr.) Marker->ARP Up Ecc. (m) : (F8.4) Marker->ARP North Ecc(m) : (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : (deg; + is clockwise/east) Antenna Radome Type : (A4 from rcvr_ant.tab; see instructions) Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : (CCYY-MM-DDThh:mmZ) Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 5. Surveyed Local Ties 5.1 Tied Marker Name : DMA Tied Marker Usage : LOCAL CONTROL Tied Marker CDP Number : NONE Tied Marker DOMES Number : Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : -2.870 dy (m) : -14.507 dz (m) : -11.756 Accuracy (mm) : 10 mm Survey method : GPS CAMPAIGN and local survey Date Measured : 2002-08-23T22:00Z Additional Information : NGS National Geodetic Survey PID#AI7564 5.2 Tied Marker Name : NIST TF NE 1 Tied Marker Usage : LOCAL CONTROL Tied Marker CDP Number : NONE Tied Marker DOMES Number : Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : -52.993 dy (m) : -34.481 dz (m) : -50.432 Accuracy (mm) : 10 mm Survey method : GPS CAMPAIGN and local survey Date Measured : 2002-08-23T22:00Z Additional Information : NGS National Geodetic Survey PID#AI7563 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 : EXTERNAL H-MASER Input Frequency : 5 MHz Effective Dates : 2006-05-10/CCYY-MM-DD Notes : Input signal is UTC(NIST). It is generated : by an Auxiliary Output Generator (AOG) steered : to UTC(NIST) from one of five H-masers in our : ensemble. All H-masers and the AOG are : Symmetricom products 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 : NATIONAL TIME & FREQUENCY STANDARDS Status : PERMANENT Effective Dates : 2002-01-01/CCYY-MM-DD Notes : 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) 9.2.1 Multipath Sources : Other antennas Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : 9.2.x Multipath Sources : (METAL ROOF/DOME/VLBI ANTENNA/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.3.1 Signal Obstructions : Mountains to West up to about 5 Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : 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 : National Institute of Standards and Technology Preferred Abbreviation : NIST Mailing Address : Mail Stop 847 : 325 Broadway : Boulder, CO 80305 Primary Contact Contact Name : Bijunath R. Patla Telephone (primary) : 303-497-4082 Telephone (secondary) : Fax : 303-497-6461 E-mail : bijunath.patla@nist.gov Secondary Contact Contact Name : Roger Brown Telephone (primary) : 303 497 6971 Telephone (secondary) : Fax : 303-497-6461 E-mail : roger.brown@nist.gov Additional Information : 12. Responsible Agency (if different from 11.) Agency : National Institute of Standards and Technology Preferred Abbreviation : NIST Mailing Address : Mail Stop 847 : 325 Broadway : Boulder, CO 80305 Primary Contact Contact Name : Bijunath R. Patla Telephone (primary) : 303-497-4082 Telephone (secondary) : Fax : 303-497-6461 E-mail : bijunath.patla@nist.gov Secondary Contact Contact Name : Roger Brown Telephone (primary) : 303 497 6971 Telephone (secondary) : Fax : 303-497-6461 E-mail : roger.brown@nist.gov Additional Information : Data flow contacts: : Primary Agency : JPL, Preferred Abbreviation : JPL : Mailing Address: 4800 Oak Grove Drive, : Pasadena, CA 91109 USA : Name: David A. Stowers : Telephone: 818-354-7055 : Fax: 818-393-4965 : E-mail: dstowers@jpl.nasa.gov : Secondary Contact : Name: UNAVCO Network Engineer : Telephone: 303-381-7500 : Fax: 303-381-7451 : E-mail: ggn-ops@ls.unavco.org, : andreatta@unavco.org : Additional UNAVCO Information: : Victoria Andreatta (303.381.7458) 13. More Information Primary Data Center : JPL Secondary Data Center : NONE URL for More Information : https://www.nist.gov/pml/time-and-frequency-divisi Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Additional Information : Antenna Graphics with Dimensions NOV750.R4 NOV750.R5 +-------+ <-- 0.1995 / \ +---+-------------+---+ <-- 0.1599 TCR | | |---------------------------| |---------------------------------| |---------------------------------------| +---------------------------------------------+ | | | | +-+---------------------------------------------+-+ +-----------------+-------------+-----------------+ <-- 0.0320 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP (5/8" thread might differ from BPA!) <-- 0.3802 --> NOM=NRP