MARN Site Information Form (site log) International GPS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Cornelia Zech Date Prepared : 2020-06-18 Report Type : UPDATE If Update: Previous Site Log : (marn_20090527.log) Modified/Added Sections : 3.3 1. Site Identification of the GNSS Monument Site Name : Marion Island Four Character ID : MARN Monument Inscription : IERS DOMES Number : 30313S004 CDP Number : Monument Description : STEEL MAST Height of the Monument : 1.5 m Monument Foundation : CONCRETE BLOCK Foundation Depth : 1 m Marker Description : MARK IN CENTRE OF MONUMENT MOUNTING Date Installed : 2004-04-22 Geologic Characteristic : BEDROCK Bedrock Type : IGNEOUS Bedrock Condition : FRESH Fracture Spacing : over 200 cm Fault zones nearby : NO Distance/activity : (multiple lines) Additional Information : (multiple lines) 2. Site Location Information City or Town : Marion Island State or Province : Prince Edward Islands Country : Republic of South Africa Tectonic Plate : Antarctica Approximate Position (ITRF) X coordinate (m) : 3448363.1132 Y coordinate (m) : 2680710.4956 Z coordinate (m) : -4632441.1649 Latitude (N is +) : -465235.30 Longitude (E is +) : +0375139.63 Elevation (m,ellips.) : 72.2 Additional Information : (multiple lines) 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP00801 Firmware Version : Elevation Cutoff Setting : 10 deg Date Installed : 2004-04-24 Date Removed : 2007-08-16 Temperature Stabiliz. : none Additional Information : elevation cutoff applied to limit size of files sent over slow satellite connection 3.2 Receiver Type : SEPT POLARX2 Satellite System : GPS Serial Number : 1494 Firmware Version : v2.7.0-rc1 Elevation Cutoff Setting : 0 Date Installed : 2007-08-16 Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.3 Receiver Type : SEPT ASTERX2E Satellite System : GPS Serial Number : 8512000338 Firmware Version : 3.4 Elevation Cutoff Setting : 0 Date Installed : 2020-06-14 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 : ASH700936C_M Serial Number : A12117 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0560 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 : MIL-C-17F RG 214 U 50 OHM Antenna Cable Length : 67 m Date Installed : 2004-04-18 Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : While changing the receiver (3.2) the antenna was unremovable. Therefore, the antenna was keept to not destroy the marker. 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 : MATB Tied Marker Usage : DORIS Tied Marker CDP Number : (A4) Tied Marker DOMES Number : 30313S002 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 46.0561 dy (m) : -349.9938 dz (m) : -207.8621 Accuracy (mm) : 5.0 Survey method : GPS CAMPAIGN Date Measured : 2006-04-28 Additional Information : (multiple lines) 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 : (if external) Effective Dates : (CCYY-MM-DD/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 7.1 Instrumentation Type : DORIS Status : PERMANENT Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 7.2 Instrumentation Type : Tide Gauge Status : PERMANENT Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8. Meteorological Instrumentation 8.1.1 Humidity Sensor Model : MET3 Manufacturer : Paroscientific Serial Number : 70208 Data Sampling Interval : 300 sec Accuracy (% rel h) : 2% Aspiration : UNASPIRATED Height Diff to Ant : 4 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 : MET3 Manufacturer : Paroscientific Serial Number : 70208 Data Sampling Interval : 300 sec Accuracy : 0.08 hPa Height Diff to Ant : 4 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 : MET3 Manufacturer : Paroscientific Serial Number : 70208 Data Sampling Interval : 300 sec Accuracy : 0.5 deg C Aspiration : UNASPIRATED Height Diff to Ant : 4 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/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 : Hartebeesthoek Radio Astronomy Observatory Preferred Abbreviation : HartRAO Mailing Address : P.O. Box 443, Krugersdorp 1740, South Africa Primary Contact Contact Name : Dr Ludwig Combrinck Telephone (primary) : +27 12 326 0742 Telephone (secondary) : Fax : +27 12 326 0756 E-mail : ludwig@hartrao.ac.za Secondary Contact Contact Name : Tilo Schoene Telephone (primary) : +49 331 288 1739 Telephone (secondary) : Fax : E-mail : tschoene (at) gfz-potsdam.de Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : (multiple lines) Preferred Abbreviation : (A10) Mailing Address : (multiple lines) 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 Primary Data Center : CDDIS Secondary Data Center : IGN URL for More Information : Hardcopy on File Site Map : (Y or URL) Site Diagram : (Y or URL) Horizon Mask : (Y or URL) Monument Description : (Y or URL) Site Pictures : (Y or URL) Additional Information : (multiple lines) Antenna Graphics with Dimensions ----- / + \ <-- 0.128 L2 | + | <-- 0.110 L1 +--------------------------------------------------+ <-- 0.102 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.038 +-------------------+-------------+--------------------+ <-- 0.035 BCR | | =| | +------x------+ <-- 0.000 BPA=ARP <-- 0.381 -->