BJNM Site Information Form (site log) International GNSS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : LIANG Kun Date Prepared : 2016-03-01 Report Type : UPDATE If Update: Previous Site Log : bjnm_20120302.log Modified/Added Sections : 3.1, 4.1 1. Site Identification of the GNSS Monument Site Name : BJNM antenna at NIM Four Character ID : BJNM Monument Inscription : IERS DOMES Number : 21616M001 CDP Number : Monument Description : A round hollow corner of the rack on the rooftop Height of the Monument : Monument Foundation : Metal rack on the rooftop Foundation Depth : Marker Description : ARP only Date Installed : 2008-10-22T02:30Z Geologic Characteristic : Bedrock Type : Bedrock Condition : Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : Antenna is fixed in the round northeast corner : of the metal rack layed in the fixed position : on the top of Building 20# : of the experimental base at NIM 2. Site Location Information City or Town : Beijing State or Province : Beijing Country : China Tectonic Plate : EURASIAN Approximate Position (ITRF) X coordinate (m) : -2154287.413 Y coordinate (m) : 4373440.047 Z coordinate (m) : 4098885.628 Latitude (N is +) : +401443.17 Longitude (E is +) : +1161326.86 Elevation (m,ellips.) : 118.6 Additional Information : 3. GNSS Receiver Information 3.1 Receiver Type : SEPT POLARX3ETR Satellite System : GPS+GLO Serial Number : 2001087 Firmware Version : 2.1 Elevation Cutoff Setting : 15 deg Date Installed : 2010-05-04T00:00Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : NONE Additional Information : Firmware corrected on 2016-03-01 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 : NOV702GG NONE Serial Number : NAE09190046 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 : Antenna Cable Length : 30 m Date Installed : 2010-08-21T00:00Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : Antenna serial number corrected on 2016-03-01 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 : EXTERNAL HYDROGEN MASER Input Frequency : 10M Hz MHz Effective Dates : 2006-06-25/CCYY-MM-DD Notes : Input signal is UTC(NIM). It is generated : by an HYDROGEN MASER steered : to UTC(NIM) from one fountain Cesium clock, : some other masers and cesuim clocks : in our atomic clock ensemble. 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 : (CCYY-MM-DD/CCYY-MM-DD) Notes : Full name is National Time & Frequency : Metrology Primary Standards 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 : HygroClip CP01 Manufacturer : Rotronic Serial Number : 10070716101 Data Sampling Interval : 600 sec Accuracy (% rel h) : 1.5 Aspiration : FAN Height Diff to Ant : -0.12 m Calibration date : 2010-08-18 Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : 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 : F02002-M004W-A Manufacturer : FRONTTECH Serial Number : MSP100500450N Data Sampling Interval : 600 sec Accuracy : 1.5 hPa Height Diff to Ant : -0.97 m Calibration date : 2010-08-18 Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : 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 : HygroClip CP01 Manufacturer : Rotronic Serial Number : 10070716101 Data Sampling Interval : 600 sec Accuracy : 0.3 deg C Aspiration : FAN Height Diff to Ant : -0.12 m Calibration date : 2010-08-18 Effective Dates : Notes : 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 : National Institute of Metrology Preferred Abbreviation : NIM Mailing Address : No.18, Bei San Huan Dong Lu, Chaoyang Dist, : Beijing, P.R.China, 100013 Primary Contact Contact Name : LIANG Kun Telephone (primary) : +86-10-64525207 Telephone (secondary) : +86-10-64225327 Fax : +86-10-64214828 E-mail : Liangk@nim.ac.cn Secondary Contact Contact Name : ZHANG Aimin Telephone (primary) : +86-10-64525206 Telephone (secondary) : +86-10-64214828 Fax : +86-10-64214828 E-mail : Zhangam@nim.ac.cn Additional Information : 12. Responsible Agency (if different from 11.) Agency : National Institute of Metrology Preferred Abbreviation : NIM Mailing Address : No.18, Bei San Huan Dong Lu, Chaoyang Dist, : Beijing, P.R.China, 100013 Primary Contact Contact Name : LIANG Kun Telephone (primary) : +86-10-64525207 Telephone (secondary) : +86-10-64225327 Fax : +86-10-64214828 E-mail : Liangk@nim.ac.cn Secondary Contact Contact Name : ZHANG Aimin Telephone (primary) : +86-10-64525206 Telephone (secondary) : +86-10-64214828 Fax : +86-10-64214828 E-mail : Zhangam@nim.ac.cn Additional Information : 13. More Information Primary Data Center : CDDIS Secondary Data Center : SIO URL for More Information : Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Additional Information : Antenna Graphics with Dimensions (insert text graphic from file antenna.gra)