CIT100USA 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) : David Maggert Date Prepared : 2021-08-25 Report Type : UPDATE If Update: Previous Site Log : cit1_20190729.log Modified/Added Sections : 2, 11 1. Site Identification of the GNSS Monument Site Name : Caltech Four Character ID : CIT1 Monument Inscription : IERS DOMES Number : 40400S201 CDP Number : Monument Description : wall Height of the Monument : Monument Foundation : ROOF Foundation Depth : Marker Description : Date Installed : 1994-09-01T00:00Z Geologic Characteristic : Bedrock Type : Bedrock Condition : Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : Southern California Integrated GPS Network - : SCIGN. 2. Site Location Information City or Town : Pasadena State or Province : California Country : United States of America (the) Tectonic Plate : PACIFIC Approximate Position (ITRF) X coordinate (m) : -2491490.2616 Y coordinate (m) : -4660803.2317 Z coordinate (m) : 3559129.0005 Latitude (N is +) : +340812.15 Longitude (E is +) : -1180738.23 Elevation (m,ellips.) : 215.35 Additional Information : Los Angeles County. 3. GNSS Receiver Information 3.1 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : 326 Firmware Version : 2.8.32.1x-93/07/08 17:10:28 Elevation Cutoff Setting : Date Installed : 1994-09-01T00:00Z Date Removed : 1994-10-12T00:00Z Temperature Stabiliz. : none Additional Information : Initial measurements. 3.2 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : 326 Firmware Version : 3.0 1994 10/10 17:01:54 Elevation Cutoff Setting : Date Installed : 1994-10-12T00:00Z Date Removed : 1995-03-02T00:00Z Temperature Stabiliz. : none Additional Information : Firmware upgrade. 3.3 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : 326 Firmware Version : 3.2 link 03/02/95 Elevation Cutoff Setting : Date Installed : 1995-03-02T00:00Z Date Removed : 1995-03-16T00:00Z Temperature Stabiliz. : none Additional Information : Firmware upgrade. 3.4 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : 326 Firmware Version : 3.2 link 03/09/95 Elevation Cutoff Setting : Date Installed : 1995-03-16T00:00Z Date Removed : 1995-05-12T00:00Z Temperature Stabiliz. : none Additional Information : Firmware upgrade. 3.5 Receiver Type : ROGUE SNR-8000 Satellite System : GPS Serial Number : T-337 Firmware Version : 3.2 link 03/09/95 Elevation Cutoff Setting : Date Installed : 1995-05-12T00:00Z Date Removed : 1998-12-18T00:00Z Temperature Stabiliz. : none Additional Information : ASHTECH Z-XII3 3.6 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02915 Firmware Version : CB00-1D02 Elevation Cutoff Setting : Date Installed : 1998-12-18T00:00Z Date Removed : 1999-06-28T00:00Z Temperature Stabiliz. : none Additional Information : Receiver swap. Continuing use of Dorne Margolin : T Ant. Antenna cable swap 26-FEB-1999 00:07 UT 3.7 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02915 Firmware Version : CC00 Elevation Cutoff Setting : 10 deg Date Installed : 1999-06-28T00:00Z Date Removed : 2006-02-03T00:00Z Temperature Stabiliz. : none Additional Information : Firmware upgrade for GPS week : rollover-compliance. 3.8 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP03314 Firmware Version : CC00 Elevation Cutoff Setting : Date Installed : 2006-02-03T00:00Z Date Removed : 2007-11-30T00:00Z Temperature Stabiliz. : none Additional Information : 3.9 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02774 Firmware Version : CC00 Elevation Cutoff Setting : Date Installed : 2007-11-30T00:00Z Date Removed : 2008-09-11T00:00Z Temperature Stabiliz. : none Additional Information : 3.10 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP03196 Firmware Version : CC00 Elevation Cutoff Setting : Date Installed : 2008-09-11T00:00Z Date Removed : 2009-06-08T23:59Z Temperature Stabiliz. : none Additional Information : 3.11 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4811148264 Firmware Version : 1.2-5 Elevation Cutoff Setting : Date Installed : 2009-06-09T01:36Z Date Removed : 2012-11-07T23:15Z Temperature Stabiliz. : none Additional Information : 3.12 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-01127 Firmware Version : 3.6 Feb,28,2012 p1 Elevation Cutoff Setting : 5 deg Date Installed : 2012-11-07T23:32Z Date Removed : 2013-05-22T18:45Z Temperature Stabiliz. : Additional Information : 3.13 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-01127 Firmware Version : 4.0 Dec,21,2012 p1 Elevation Cutoff Setting : 5 deg Date Installed : 2013-05-22T18:45Z Date Removed : 2013-11-25T23:45Z Temperature Stabiliz. : Additional Information : 3.14 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5301K55938 Firmware Version : 4.81 Elevation Cutoff Setting : 5 deg Date Installed : 2013-11-26T00:30Z Date Removed : 2014-09-23T18:14Z Temperature Stabiliz. : Additional Information : 3.15 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+SBAS Serial Number : 5301K55938 Firmware Version : 4.85 Elevation Cutoff Setting : 5 deg Date Installed : 2014-09-23T18:19Z Date Removed : 2015-08-19T00:56Z Temperature Stabiliz. : Additional Information : 3.16 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+SBAS Serial Number : 5301K55938 Firmware Version : 5.03 Elevation Cutoff Setting : 5 deg Date Installed : 2015-08-19T00:56Z Date Removed : 2015-10-29T00:29Z Temperature Stabiliz. : Additional Information : 3.17 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+SBAS Serial Number : 5301K55938 Firmware Version : 5.10 Elevation Cutoff Setting : 5 deg Date Installed : 2015-10-29T00:33Z Date Removed : 2016-06-29T23:48Z Temperature Stabiliz. : Additional Information : 3.18 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+SBAS Serial Number : 5301K55938 Firmware Version : 5.14 Elevation Cutoff Setting : 5 deg Date Installed : 2016-06-29T23:54Z Date Removed : 2017-05-05T00:10Z Temperature Stabiliz. : Additional Information : 3.19 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+SBAS Serial Number : 5301K55938 Firmware Version : 5.22 Elevation Cutoff Setting : 5 deg Date Installed : 2017-05-05T00:10Z Date Removed : 2017-11-15T04:45Z Temperature Stabiliz. : Additional Information : 3.20 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+SBAS Serial Number : 5301K55938 Firmware Version : 5.30 Elevation Cutoff Setting : 5 deg Date Installed : 2017-11-15T04:45Z Date Removed : 2018-07-11T23:44Z Temperature Stabiliz. : Additional Information : 3.21 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+SBAS Serial Number : 5301K55938 Firmware Version : 5.33 Elevation Cutoff Setting : 5 deg Date Installed : 2018-07-11T23:44Z Date Removed : 2018-07-23T21:36Z Temperature Stabiliz. : Additional Information : 3.22 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+SBAS Serial Number : 5301K55938 Firmware Version : 5.30 Elevation Cutoff Setting : 5 deg Date Installed : 2018-07-23T21:36Z Date Removed : 2019-07-25T18:22Z Temperature Stabiliz. : Additional Information : 3.23 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+SBAS Serial Number : 5301K55938 Firmware Version : 5.37 Elevation Cutoff Setting : 5 deg Date Installed : 2019-07-25T18:28Z 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 : 161 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 : 1994-09-01T00:00Z Date Removed : 2012-11-07T23:45Z Additional Information : High gain/low noise amplifier with RFI filters 4.2 Antenna Type : TPSCR.G3 SCIS Serial Number : 383-1862 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 : 0536 Antenna Cable Type : Antenna Cable Length : Date Installed : 2012-11-07T23:56Z Date Removed : 2013-11-25T23:55Z Additional Information : 4.3 Antenna Type : TRM57971.00 NONE Serial Number : 50001153448 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 : Antenna Cable Length : Date Installed : 2013-11-26T00:35Z Date Removed : 2013-12-17T19:35Z Additional Information : 4.4 Antenna Type : TRM57971.00 NONE Serial Number : 50001153448 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 : LMR400 Antenna Cable Length : 30 m Date Installed : 2013-12-17T19:35Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : Installed new antenna cable 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 : 1994-09-01/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 : USGS Preferred Abbreviation : USGS Mailing Address : USGS Pasadena Field Office : 525 South Wilson Avenue : Pasadena, CA 91107 Primary Contact Contact Name : SCGN Operators Telephone (primary) : Telephone (secondary) : Fax : E-mail : scgn-operators@usgs.gov Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 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 : 13. More Information Primary Data Center : CDDIS Secondary Data Center : IGN URL for More Information : http://www.unavco.org Hardcopy on File Site Map : Y Site Diagram : Horizon Mask : Y Monument Description : Y Site Pictures : Y Additional Information : Antenna Graphics with Dimensions TRM55971.00 TRM57971.00 RNG80971.00 / --------------------------------------------- \ + + \ --------------------------------------------- / \ / \ / \-----+-----/ <-- 0.0000 BAM=ARP <-- 0.3396 --> Notches