Thomas Fischer 2026-03-19 UPDATE O'Higgins / Antarctica OHI2 Pillar K6 66008M005 PILLAR 1.4 CONCRETE PILLAR BOLTED ON BEDROCK 0.5 SURVEY MARKER WITH THREAD 2002-02-14T18:30:00Z Bedrock METAMORPHIC WEATHERED 51-200 cm 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 antenna is bolted into one of these veins, which are very resistant to weathering. A ROGUE SNR-8000 / ACT SNR-8000 ACT operated from 1995-02-14 until 2002-02-20 at the German Antarctic Receiving Station GARS in Higgins / Antarctica with the four character ID OHIG, on pillar K5, DOMES Number 66008M001. Because of the expansion and of construction works in the Chilenean Antarctic Base the antenna for the GPS Permanent Tracking Station OHIG was moved to another pillar K6, DOMES Number 66008M005, 2002-02-14, new four charcater ID OHI2. For collocation we observed from 2002-02-14 until 2002-02-20 with two AOA SNR-8000 ACT at OHIG and OHI2, and also with the Ashtech Z-18 OHIZ. 2002-02-14 OHI2 installed. 2002-02-16 DOME removed in OHIG. 2002-02-19 DOME installed in OHI2. 2002-02-20 OHIG removed. In addition and parallel also an ASHTECH Z18 GPS+GLONASS System, was operating in O'Higgins. From 2001-02-09 until 2003-01-27 with four character ID OHIZ, DOMES Number 66008M004. Because of the expansion and of construction works in the Chilenean Antarctic Base the antenna for the GPS+GLONASS Permanent Tracking Station OHIZ was moved to another pillar K3, DOMES Number 66008M006, 2003-02-06, new four charcater ID OHI3. A re-examination and survey in O'Higgins February 2003 reported necessary corrections. The correct antenna-height = Marker Up Ecc for OHIG from 1995-02-14 until 2002-02-20 was 0.0030 m, instead of 0.0010 m. The correct antenna-height = Marker Up Ecc for OHI2 since 2002-02-14 was -0.0080 m, instead of 0.0008 m. In addition a LEICA GR25 GPS+GLO+GAL+SBAS system is operating on pillar K3, DOMES Number 66008M006, four character ID OHI3. O'Higgins Antarctica ANTARCTIC 1525811.869 -2432478.218 -5676165.58 -63.3210811659 -57.9013326678 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 antenna is bolted into one of these veins, which are very resistant to weathering. A ROGUE SNR-8000 / ACT SNR-8000 ACT operated from 1995-02-14 until 2002-02-20 at the German Antarctic Receiving Station GARS in Higgins / Antarctica with the four character ID OHIG, on pillar K5, DOMES Number 66008M001. Because of the expansion and of construction works in the Chilenean Antarctic Base the antenna for the GPS Permanent Tracking Station OHIG was moved to another pillar K6, DOMES Number 66008M005, 2002-02-14, new four charcater ID OHI2. For collocation we observed from 2002-02-14 until 2002-02-20 with two AOA SNR-8000 ACT at OHIG and OHI2, and also with the Ashtech Z-18 OHIZ. 2002-02-14 OHI2 installed. 2002-02-16 DOME removed in OHIG. 2002-02-19 DOME installed in OHI2. 2002-02-20 OHIG removed. In addition and parallel also an ASHTECH Z18 GPS+GLONASS System, was operating in O'Higgins. From 2001-02-09 until 2003-01-27 with four character ID OHIZ, DOMES Number 66008M004. Because of the expansion and of construction works in the Chilenean Antarctic Base the antenna for the GPS+GLONASS Permanent Tracking Station OHIZ was moved to another pillar K3, DOMES Number 66008M006, 2003-02-06, new four charcater ID OHI3. A re-examination and survey in O'Higgins February 2003 reported necessary corrections. The correct antenna-height = Marker Up Ecc for OHIG from 1995-02-14 until 2002-02-20 was 0.0030 m, instead of 0.0010 m. The correct antenna-height = Marker Up Ecc for OHI2 since 2002-02-14 was -0.0080 m, instead of 0.0008 m. In addition a LEICA GR25 GPS+GLO+GAL+SBAS system is operating on pillar K3, DOMES Number 66008M006, four character ID OHI3. T-394U AOA SNR-8000 ACT GPS 3.3.32.4 0 2002-02-14T18:30:00Z 2007-11-12T08:29:00Z 2002-02-14T00:00:00Z AECFDJ1KK5C JPS E_GGD GPS+GLO 2.6.0 Apr,18,2007 0 2007-11-12T08:30:00Z 2008-01-17T16:14:00Z 2007-11-12T00:00:00Z AECFDJ1KK5C JPS E_GGD GPS+GLO 2.6.1 JAN,10,2008 0 2008-01-17T16:15:00Z 2010-03-26T13:34:00Z 2008-01-17T00:00:00Z AECFDJ1KK5C JPS E_GGD GPS+GLO 3.4 DEC,12,2009 P2 0 2010-03-26T13:35:00Z 2014-03-02T15:59:00Z 2010-03-26T00:00:00Z 3VOLU2Z8ZA2O83VVUCMB JAVAD TRE_G3TH DELTA GPS+GLO+GAL+SBAS 3.5.3 SEP,19,2013 0 2014-03-02T16:00:00Z 2015-01-27T09:09:00Z 2014-03-02T00:00:00Z 3VOLU2Z8ZA2O83VVUCMB JAVAD TRE_G3TH DELTA GPS+GLO+GAL+SBAS 3.6.1 DEC,30,2014 0 2015-01-27T09:10:00Z 2016-02-29T09:44:00Z 2015-01-27T00:00:00Z 3VOLU2Z8ZA2O83VVUCMB JAVAD TRE_G3TH DELTA GPS+GLO+GAL+SBAS 3.6.4 JAN,12,2016 0 2016-02-29T09:45:00Z 2017-01-24T19:59:00Z 2016-02-29T00:00:00Z 3VOLU2Z8ZA2O83VVUCMB JAVAD TRE_G3TH DELTA GPS+GLO+GAL+SBAS 3.6.9 NOV,28,2016 0 2017-01-24T20:00:00Z 2017-12-06T00:00:00Z 2017-01-24T00:00:00Z 3VOLU2Z8ZA2O83VVUCMB JAVAD TRE_G3TH DELTA GPS+GLO+GAL+SBAS 3.7.2 AUG,31,2017 0 2017-12-07T11:00:00Z 2019-04-10T15:55:00Z 2017-12-07T00:00:00Z 3VOLU2Z8ZA2O83VVUCMB JAVAD TRE_G3TH DELTA GPS+GLO+GAL+SBAS 3.7.6 APR,08,2019 0 2019-04-10T16:00:00Z 2020-03-02T10:05:00Z 2019-04-10T00:00:00Z 3VOLU2Z8ZA2O83VVUCMB JAVAD TRE_G3TH DELTA GPS+GLO+GAL+SBAS 3.7.9 DEC,30,2019 0 2020-03-02T10:15:00Z 2021-02-18T11:55:00Z 2020-03-02T00:00:00Z 3VOLU2Z8ZA2O83VVUCMB JAVAD TRE_G3TH DELTA GPS+GLO+GAL+SBAS 4.0.02-210208 0 2021-02-18T12:00:00Z 2021-06-02T15:20:00Z 2021-02-18T00:00:00Z 3VOLU2Z8ZA2O83VVUCMB JAVAD TRE_G3TH DELTA GPS+GLO+GAL+SBAS 4.1.01-210527 0 2021-06-02T15:30:00Z 2021-06-02T00:00:00Z 414U AOAD/M_T NONE BPA 0.0008 0.0000 0.0000 0 NONE RG214 30 2002-02-14T18:30:00Z 2002-02-19T20:00:00Z 2002-02-14T00:00:00Z 414U AOAD/M_T DOME BPA 0.0008 0.0000 0.0000 0 DOME RG214 30 2002-02-19T20:00:00Z 2003-02-23T00:00:00Z 2002-02-19T00:00:00Z 414U AOAD/M_T DOME BPA -0.0080 0.0000 0.0000 0 DOME RG214 30 2003-02-23T00:00:00Z 2009-01-30T17:30:00Z 2003-02-23T00:00:00Z 383-0203 TPSCR.G3 TPSH BPA 0.0375 0.0000 0.0000 0 TPSH RG214 30 2009-01-30T17:45:00Z 2013-02-07T20:59:00Z 2009-01-30T00:00:00Z 383-0203 TPSCR.G3 TPSH BPA 0.0244 0.0000 0.0000 0 TPSH RG214 30 2013-02-07T21:00:00Z 2014-03-02T15:59:00Z 2013-02-07T00:00:00Z 725307 LEIAR25.R4 LEIT BPA 0.0245 0.0000 0.0000 0 LEIT RG214 30 2014-03-02T16:00:00Z 2016-02-26T09:27:00Z 2014-03-02T00:00:00Z 725307 LEIAR25.R4 LEIT BPA 0.0230 0.0000 0.0000 0 LEIT RG214 30 2016-02-27T16:30:00Z 2017-02-27T11:35:00Z 2016-02-27T00:00:00Z 725307 LEIAR25.R4 LEIT BPA 0.0728 0.0000 0.0000 0 LEIT RG214 30 2017-02-27T11:40:00Z 2017-02-27T00:00:00Z VLBI Radiotelescope VLBI -21.2938 -14.5501 8.9064 1 TRIANGULATION 2002-02-12T00:00:00Z Differential Components from the Marker Pillar K6 OHI2 to the Point of Axis-Intersection in the VLBI Radiotelescope. dx, dy, dz = Marker Pillar K6 OHI2 minus Axis-Intersection VLBI. 2002-02-12T00:00:00Z Pillar K5 = OHIG GPS 66008M001 -60.744 3.0891 -19.5299 1 TRIANGULATION 2002-02-12T00:00:00Z GPS Permanent Tracking Station OHIG at Pillar K5 from 1995-02-14 until 2002-02-20. Differential Components from the Marker Pillar K6 OHI2 to the Marker Pillar K5 OHIG. dx, dy, dz = Marker Pillar K6 OHI2 minus Marker Pillar K5 OHIG. 2002-02-12T00:00:00Z OHIZ GPS+GLONASS 66008M004 -56.776 -20.576 -5.537 1.5 TRIANGULATION 2002-02-12T00:00:00Z GPS+GLONASS Permanent Tracking Station OHIZ from 2001-02-09 until 2003-01-27. Differential Components from the Marker Pillar K6 OHI2 to the ARP of the OHIZ antenna, not to the OHIZ Marker. The ARP of the OHIZ antenna was 0.1215 m above the OHIZ Marker. dx, dy, dz = Marker Pillar K6 OHI2 minus ARP OHIZ antenna. 2002-02-12T00:00:00Z Pillar K3 = OHI3 GPS+GLONASS 66008M006 2.8291 0.515 0.6918 1 TRIANGULATION 2002-02-12T00:00:00Z GPS+GLONASS Permanent Tracking Station OHI3 at pillar K3 since 2003-02-06. Differentiel Components from the Marker Pillar K6 OHI2 to the Marker Pillar K3 OHI3. dx, dy, dz = Marker Pillar K6 OHI2 minus Marker Pillar K3 OHI3. 2002-02-12T00:00:00Z INTERNAL 2002-02-14 2016-05-09 2002-02-14T00:00:00Z EXTERNAL H-MASER 5.0 2016-05-09 2020-03-08 External input reference oscillator. H-Maser EFOS 50. 2016-05-09T00:00:00Z INTERNAL 2020-03-08 2020-04-23 2020-03-08T00:00:00Z EXTERNAL H-MASER 5.0 2020-04-23 EFOS11 2020-04-23T00:00:00Z VLBI PERMANENT 1995-01-01 2 VLBI-measurements in campaigns each year 1995-01-01T00:00:00Z GPS ROGUE SNR-8000 / AOA SNR-8000 ACT PERMANENT 1995-02-14 2002-02-20 Four Character ID OHIG 1995-02-14T00:00:00Z GPS+GLONASS ASHTECH Z18 PERMANENT 2001-02-09 2003-01-27 Four Character ID OHIZ 2001-02-09T00:00:00Z GPS+GLONASS ASHTECH Z18 PERMANENT 2003-02-06 2004-03-15 Four Character ID OHI3 2003-02-06T00:00:00Z GPS+GLONASS JPS E_GGD PERMANENT 2004-03-16 2006-01-18 Four Character ID OHI3 2004-03-16T00:00:00Z GPS+GLONASS TPS E_GGD PERMANENT 2006-01-18 2009-11-23 Four Character ID OHI3 2006-01-18T00:00:00Z GPS+GLONASS LEICA GRX1200GGPRO PERMANENT 2009-11-23 2012-02-09 Four Character ID OHI3 2009-11-23T00:00:00Z GPS+GLONASS LEICA GRX1200+GNSS PERMANENT 2009-11-25 2014-03-01 Four Character ID OHIX 2009-11-25T00:00:00Z GPS+GLONASS LEICA GRX1200+GNSS PERMANENT 2012-02-09 2014-03-01 Four Character ID OHI3 2012-02-09T00:00:00Z GPS+GLONASS LEICA GR25 PERMANENT 2014-03-01 Four Character ID OHI3 2014-03-01T00:00:00Z GPS+GLONASS LEICA GR25 PERMANENT 2014-03-01 Four Character ID OHIX 2014-03-01T00:00:00Z MP408A The Humidity Sensor was 1.1 m above the antenna. ROTRONIC -1.1 1995-02-14 2003-02-25 900 1.5 CAPACITANCE PROBE 1995-02-14T00:00:00Z HUGER-WS The Humidity Sensor was 1.1 m above the antenna. Temporary replacement of damaged MP408A Sensor. HUGER -1.1 2003-02-25 2003-11-03 900 2 CAPACITANCE PROBE 2003-02-25T00:00:00Z MP408A The Humidity Sensor is 1.1 m above the antenna. ROTRONIC -1.1 2003-11-03 900 1.5 CAPACITANCE PROBE 2003-11-03T00:00:00Z APS The Pressure Sensor was 1.0 m below the antenna. ROESSLER + CIE 1.0 1995-02-14 2003-02-25 900 0.1 1995-02-14T00:00:00Z HUGER-WS The Pressure Sensor was 0.5 m below the antenna. Temporary replacement of damaged APS Sensor. HUGER 0.5 2003-02-25 2003-11-03 900 1 2003-02-25T00:00:00Z APS 9215 The Pressure Sensor is 1.0 m below the antenna. L-TEC Leibenguth 0538 3401A 1.0 2003-11-03 900 0.1 2003-11-03T00:00:00Z MP408A The Temperature Sensor was 1.1 m above the antenna. ROTRONIC -1.1 1995-02-14 2003-02-25 900 0.3 PLATINUM PROBE 1995-02-14T00:00:00Z HUGER-WS The Temperature Sensor was 1.1 m above the antenna. Temporary replacement for a damaged MP408A Sensor. HUGER -1.1 2003-02-25 2003-11-03 900 0.5 PLATINUM PROBE 2003-02-25T00:00:00Z MP408A The Temperature Sensor is 1.1 m above the antenna. ROTRONIC -1.1 2003-11-03 900 0.3 PLATINUM PROBE 2003-11-03T00:00:00Z GOW Operator Federal Agency for Cartography and Geodesy Geodetic Observatory Wettzell +49-9941-603-0 +49-9941-603-122 +49-9941-603-222 Federal Agency for Cartography and Geodesy Geodetic Observatory Wettzell Sackenrieder Strasse 25 D-93444 Bad Koetzting Germany gnss_wtz@bkg.bund.de BKG GNSS Data Center Federal Agency for Cartography and Geodesy Geodetic Observatory Wettzell +49 69 6333274 +49 69 63331 +49 69 6333425 Federal Agency for Cartography and Geodesy Geodetic Observatory Wettzell Sackenrieder Strasse 25 D-93444 Bad Koetzting Germany bkg-gdc@bkg.bund.de BKG GNSS Data Center Bundesamt fuer Kartographie und Geodaesie Geodetical Observatory Wettzell +49 69 6333274 +49 69 63331 +49 69 6333425 Bundesamt fuer Kartographie und Geodaesie Geodetical Observatory Wettzell Sackenrieder Strasse 25 D-93444 Bad Koetzting Germany bkg-gdc@bkg.bund.de GOW Operator Bundesamt fuer Kartographie und Geodaesie Geodetical Observatory Wettzell ++49-9941-6030 ++49-9941-603128 ++49-9941-603222 Bundesamt fuer Kartographie und Geodaesie Geodetical Observatory Wettzell Sackenrieder Strasse 25 D-93444 Bad Koetzting Germany vl_gnss_wettzell@bkg.bund.de BKG IGN www.bkg.bund.de, www.fs.wettzell.de Y Y Y Y Y AOAD/M_T from 2002-02-14 until 2009-01-30 ----- / + \ <-- 0.128 L2 | + | <-- 0.110 L1 +--------------------------------------------------+ <-- 0.102 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.038 +-------------------+-------------+--------------------+ <-- 0.035 BCR | | =| | +------x------+ <-- 0.000 BPA=ARP <-- 0.381 --> TPSCR.G3 from 2009-01-30 until 2014-03-02 +-------+ / + \ | + | +-----------------+-------------+------------------+ <-- 0.1015 TCR | | | | | | | | +-+--------------------------------------------------+-+ +-------------------+-------------+--------------------+ <-- 0.0345 BCR | | | | +------x------+ <-- 0.000 BPA=ARP <-- 0.238 --> <-- 0.380 --> LEIAR25.R4 from 2014-03-02 +-------+ <-- 0.1995 / \ +---+-------------+---+ <-- 0.1606 TCR | | |---------------------------| |---------------------------------| |---------------------------------------| +---------------------------------------------+ | | | | +-+---------------------------------------------+-+ +-----------------+-------------+-----------------+ <-- 0.0320 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3802 --> ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering TGP: Top of Ground Plane BGP: Bottom of Ground Plane TPA: Top of Preamplifier BPA: Bottom of Preamplifier TOP: Top of Pole All dimensions are in meters. TODO