OHI2 Site Information Form International GPS Service for Geodynamics 0. Form Prepared by (full name) : Dr. Wolfgang Schlueter : Klaus Roettcher : Uwe Hessels : Andreas Reinhold : Reiner Wojdziak : Rudi Stoeger Date Prepared : 25-FEB-2002 Report Type : OHI2 Prepared Using : 1. Site Identification of the GPS Monument Site Name : O'Higgins / Antarctica Four Character ID : OHI2 Monument Inscription : Pillar K6 IERS DOMES Number : 66008M005 CDP Number : Date Installed : 14-FEB-2002 18:30 UT Geologic Characteristic : Bedrock Bedrock Type : Metamorphic Bedrock Condition : Weathered Fracture Spacing : 50-200 cm Notes : Predominant rocks at the station : O'Higgins are quartz-bearing black, : grey and reddish brown : low-metamorphic clay slates and : phylitte slates of the Trinity : Peninsula Formation. They are very : brittle, fine-laminated in the mm- : and cm-range and incline with about : 60 to 80 degrees to NW. : Because of these characteristics : and the high clay mineral content : and the expansive force resulting : from this the slates are highly : susceptible to weathering and mostly : covered by detrital layers. Only : tectonicly less stressed parts and : parts resistant to weathering stick : out from these detrital masses. These : have a linear geometry and show strong : cleavings. The instrusions of 0.5m to : 1.5m thick vein rocks, which pass : through the slates, are significantly : younger. The pillar with the Turbo : Rogue antenna is bolted into one of : these veins, which are very resistant : to weathering. Additional Information : ROGUE SNR-8000 / ACT SNR-8000 ACT : operated since 14-FEB-1995 00:00 UT : until 20-FEB-2002 02:00 UT at the : ERS/VLBI- Station O'Higgins / : Antarctica with the four character : ID OHIG. Because of the expansion : and of construction works in the : Chilenean Antarctic Base we had to : move the antenna for the GPS Permanent : Tracking Station OHIG to another new : pillar K6 in our O'Higgins Observatory. : The four character ID for this new : antenna-site is OHI2. : A summary for OHIG follows on the : next lines, includes the transition to : OHI2. : Upgrading Firmware from V 3.0 : to V 3.2, 04-FEB-1996, 16:40 UT. : Malfunctiong ROGUE SNR-8000 S/N T319 : have been replaced by ROGUE SNR-8000 : S/N T398, 17-FEB-1997, 00:23 UT : (Firmware V 3.2 to V 3.32.4). : ROGUE SNR-8000 S/N T-398 have been : replaced by AOA SNR-8000 ACT : S/N T-395U (ROGUE SNR-8000 upgraded : to ACT, functionally like AOA : BENCHMARK ACT) V 3.3.32.3, : 14-FEB-2000, 00:35 UT. : Malfunctioning AOA SNR-8000 ACT : S/N T-395U (ROGUE SNR-8000 : upgraded to ACT) V 3.3.32.3 have : been replaced by ROGUE SNR-8000 : S/N T394 Firmware Version : 3.2.32.9, 02-OCT-2000. : ROGUE SNR-8000 S/N T394 Firmware : Version 3.2.32.9 have been replaced : by AOA SNR-8000 ACT (ROGUE SNR-8000 : upgraded to ACT) S/N T-395U, : V 3.3.32.3, 09-FEB-2001, 01:00 UT. : In addition and parallel also an : ASHTECH Z18 GPS/GLONASS System, : Four Character ID OHIZ, is operating : in O'Higgins since 09-FEB-2001. : Because of the expansion and of : construction works in the Chilenean : Antarctic Base we had to move the : antenna for the GPS Permanent Tracking : Station OHIG to another new pillar K6 : in our O'Higgins Observatory. : The four character ID for the new : antenna-site is OHI2. : For collocation we observed from : 14-FEB-2002 18:30 UT until : 20-FEB-2002 02:00 UT with two : AOA SNR-8000 ACT at OHIG and OHI2, : and also with the Ashtech Z-18 OHIZ. : 14-FEB-2002 18:30 UT OHI2 installed. : 16-FEB-2002 18:30 UT DOME removed in OHIG. : 19-FEB-2002 20:00 UT DOME installed in : OHI2. : 20-FEB-2002 02:00 UT OHIG removed. 2. Site Location Information City or Town : O'Higgins State or Province : Country : Antarctic Peninsula Tectonic Plate : Antarctican Approximate Position X coordinate (m) : 1525872.392 Y coordinate (m) : -2432481.273 Z coordinate (m) : -5676146.066 Latitude (deg) : 63.320724011 S Longitude (deg) : 57.900342018 W Elevation (m) : 30.621 Additional information : The GPS-System was installed nearby : the German ERS/VLBI-Station and the : Chilenian Base O'Higgins. : The System is a stand-alone-system : during long Antartican-Winter. : Only for VLBI-Observation-Sessions : operators travel to O'Higgins during : short Antarctican-"Summer". 3. GPS Receiver Information 3.1 Receiver Type : AOA SNR-8000 ACT Serial Number : T-394U Firmware Version : 3.3.32.4 Date Installed : 14-FEB-2002 18:30 UT Date Removed : dd-MMM-yyyy mm:hh UT Additional Information : New OHI2 at pillar K6 : replaced OHIG at : pillar K5, which operated : since 14-FEB-1995 00:00 UT 4. GPS Antenna Information 4.1 Antenna Type : AOAD/M_T NONE Serial Number : 414U Antenna Height (m) : 0.0008 Antenna Reference Point : BPA Degree Offset from North : Antenna Radome Type : NONE Date Installed : 14-FEB-2002 18:30 UT Date Removed : 19-FEB-2002 20:00 UT Additional Information : 4.2 Antenna Type : AOAD/M_T DOME Serial Number : 414U Antenna Height (m) : 0.0008 Antenna Reference Point : BPA Degree Offset from North : Antenna Radome Type : DOME Date Installed : 19-FEB-2002 20:00 UT Date Removed : dd-MMM-yyyy hh:mm UT Additional Information : Modfied Radome as used for : Inmarsat A equipments. : Used also for former : OHIG 5. Local Site Ties 5.1 Monument Name : VLBI Site Ref CDP Number : Site Ref Domes Number : Differential Components from GPS Mark to Site Reference (ITRS) dx (m) : dy (m) : dz (m) : Accuracy (mm) : mm Date Measured : Additional Information : 5.2 Monument Name : OHIG Site Ref CDP Number : Site Ref Domes Number : 66008M001 Differential Components from GPS Mark to Site Reference (ITRS) dx (m) : dy (m) : dz (m) : Accuracy (mm) : mm Date Measured : Additional Information : GPS Permanent Tracking Station OHIG : at Pillar K 5 from 14-FEB-1995 until : 20-FEB-2002 02:00 UT 5.3 Monument Name : OHIZ Site Ref CDP Number : Site Ref Domes Number : 66008M004 Differential Components from GPS Mark to Site Reference (ITRS) dx (m) : dy (m) : dz (m) : Accuracy (mm) : mm Date Measured : Additional Information : GPS / GLONASS ASHTECH Z18 since : 09-FEB-2001 6. Frequency Standard 6.1 Standard Type : INTERNAL Frequency : Effective Dates : 14-FEB-2002 Notes : The AOA SNR-8000 ACT operates : with internal oscillator. 7. Collocation Information 7.1 Instrumentation Type : VLBI Status : PERMANENT Effective Dates : 1995 - now Notes : 2 VLBI-measurements in campaigns : each year 7.2 Instrumentation Type : GPS ROGUE SNR-8000 / AOA SNR-8000 ACT Status : PERMANENT Effective Dates : 14-FEB-1995 - 20-FEB-2002 Notes : Four Character ID OHIG 7.3 Instrumentation Type : GPS / GLONASS ASHTECH Z18 Status : PERMANENT Effective Dates : 09-FEB-2001 - now Notes : Four Character ID OHIZ 8. Meteorological Instrumentation 8.1 Humidity Sensor Model : MP 408 A Manufacturer : Rotronic, Esslingen Data Frequency : 15 min Accuracy (% rel h) : + / - 1.5 % rel h Effective Dates : 14-FEB-1995 - now Notes : 8.2 Pressure Sensor Model : APS Manufacturer : Roessler + Cie Data Frequency : 15 min Accuracy (mbar) : + / - 1 mbar Height Diff to GPS (m) : 2,5 m Effective Dates : 14-FEB-1995 - now Notes : 8.3 Temperature Sensor Model : MP 408 A Manufacturer : Rotronic, Esslingen Data Frequency : 15 min Accuracy (deg C) : + / - 0.3 deg C Effective Dates : 14-FEB-1995 - now Notes : 8.4 Water Vapor Radiometer : Manufacturer : Distance to GPS (m) : Elev Diff to GPS (m) : Effective Dates : Notes : 8.5 Other Instrumentation : 9. On-Site, Point of Contact Agency Information Agency : Bundesamt fuer Kartographie : und Geodaesie Mailing Address : Bundesamt fuer Kartographie : und Geodaesie : Aussenstelle Leipzig : Karl-Rothe-Strasse 10 - 14 : D-04105 Leipzig : Germany Primary Contact Contact Name : Andreas Reinhold Telephone (primary) : (0049)-341-5634421 Telephone (secondary) : (0049)-341-56340 Fax : (0049)-341-5634415 E-mail : ar@leipzig.ifag.de Secondary Contact Contact Name : Reiner Wojdziak Telephone (primary) : (0049)-341-5634204 Telephone (secondary) : (0049)-341-56340 Fax : (0049)-341-5634415 E-mail : wojdziak@leipzig.ifag.de 10. Responsible Agency (if different from 9.) Agency : Bundesamt fuer Kartographie : und Geodaesie : Fundamentalstation Wettzell Mailing Address : Bundesamt fuer Kartographie : und Geodaesie : Fundamentalstation Wettzell : D-93444 Koetzting : Germany Primary Contact Contact Name : Dr. Wolfgang Schlueter Telephone (primary) : (0049)-9941-603107 Telephone (secondary) : (0049)-9941-6030 Fax : (0049)-9941-603222 E-mail : schlueter@wettzell.ifag.de Contact Name : Klaus Roettcher Telephone (primary) : (0049)-9941-603115 Telephone (secondary) : (0049)-9941-6030 Fax : (0049)-9941-603222 E-mail : roettcher@wettzell.ifag.d Contact Name : Uwe Hessels Telephone (primary) : (0049)-9941-603204 Telephine (secondary) : (0049)-9941-6030 Fax : (0049)-9941-603222 E-mail : hessels@wettzell.ifag.de Contact Name : Rudi Stoeger Telephone (primary) : (0049)-9941-603114 Telephone (secondary) : (0049)-9941-6030 Fax : (0049)-9941-603222 E-mail : stoeger@wettzell.ifag.de Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 11. More Information URL for More Information : Hardcopy on File Site Map : X Site Diagram : Horizon Mask : Monument Description : Site Pictures : X Additional Information : Antenna Graphics with Dimensions AOAD/M_T DOME (DOME = modified Radome as used for Inmarsat A equipment) ----- / + \ <-- 0.1280 L2 | + | <-- 0.1100 L1 +--------------------------------------------------+ <-- 0.1020 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.0380 +-------------------+-------------+--------------------+ <-- 0.0350 BCR | | =| | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3810 --> ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering BPA: Bottom of Preamplifier