TU Delft GNSS team (gnss-citg@tudelft.nl) 2026-04-16 UPDATE Westerbork Synthesis Radio Telescope WSRT -- 13506M005 Steel Mast w/ Invar wire/spring height stabiliz. 18.0 Concrete platform embedded on stable sand layer 1997-05-23T12:00:00Z SAND SEDIMENTARY FRESH NO WSRT is operating under responsibility of the Institute for Earth-Oriented Space research (DEOS) of the Delft University of Technology. Netherlands Triangulation Network No. RD 179811 Netherlands Height System No. NAP 0A-2628 Westerbork Drente Netherlands (the) EURASIAN 3828739 443305 5064887 52.9146 6.6045 WSRT is operating under responsibility of the Institute for Earth-Oriented Space research (DEOS) of the Delft University of Technology. Netherlands Triangulation Network No. RD 179811 Netherlands Height System No. NAP 0A-2628 T209 ROGUE SNR-12 RM GPS 3.2.32.1 0 1997-06-01T12:00:00Z 1999-08-12T10:02:00Z 1997-06-01T00:00:00Z T209 ROGUE SNR-12 RM GPS 3.2.32.9 0 1999-08-12T10:12:00Z 2000-01-05T00:00:00Z 1999-08-12T00:00:00Z 225 AOA SNR-12 ACT GPS 3.3.32.3 0 2000-01-05T14:46:00Z 2000-08-15T09:30:00Z 2000-01-05T00:00:00Z 225 AOA SNR-12 ACT GPS 3.3.32.4 0 2000-08-15T10:02:00Z 2001-05-31T08:57:00Z 2000-08-15T00:00:00Z 224 AOA SNR-12 ACT GPS 3.3.32.4 0 2001-05-31T13:30:00Z 2005-04-05T11:52:00Z 2001-05-31T00:00:00Z 251 AOA SNR-12 ACT GPS 3.3.32.4 0 2005-04-12T11:30:00Z 2007-03-05T10:20:00Z 2005-04-12T00:00:00Z 251 AOA SNR-12 ACT GPS 3.3.32.2N 0 2007-03-05T14:00:00Z 2010-07-18T13:02:00Z 2007-03-05T00:00:00Z 229 AOA SNR-12 ACT GPS 3.3.32.2N 0 2010-07-22T11:36:00Z 2012-04-20T10:45:00Z 2010-07-22T00:00:00Z 224 AOA SNR-12 ACT GPS 3.3.32.2N 0 2012-04-20T11:00:00Z 2012-04-23T13:00:00Z 2012-04-20T00:00:00Z 225 AOA SNR-12 ACT GPS 3.3.32.2N 0 2012-04-23T13:00:00Z 2012-05-01T14:20:00Z 2012-04-23T00:00:00Z 229 AOA SNR-12 ACT GPS 3.3.32.2N 0 2012-05-01T14:20:00Z 2017-11-27T16:42:00Z 2012-05-01T00:00:00Z 5302K41643 TRIMBLE NETR9 GPS+GLO 5.22 0 2017-11-27T17:00:00Z 2018-12-16T23:59:00Z 2017-11-27T00:00:00Z 3024778 SEPT POLARX5 GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS 5.2.0 0 2018-12-17T00:00:00Z 2020-02-18T19:15:00Z 2018-12-17T00:00:00Z 3024778 SEPT POLARX5 GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS 5.3.2 0 2020-02-18T19:15:00Z 2023-04-17T15:24:00Z 2020-02-18T00:00:00Z 3024778 SEPT POLARX5 GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS 5.5.0 0 2023-04-17T15:24:00Z 2026-04-16T10:02:00Z 2023-04-17T20:10:06Z 3024778 SEPT POLARX5 GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS 5.7.0 0 2026-04-16T10:02:00Z 2026-04-16T11:10:33Z 273 AOAD/M_T DUTD BPA 0.3795 0.0000 0.0000 0 DUTD 80 1997-06-01T12:00:00Z 1998-03-17T09:14:00Z 1997-06-01T00:00:00Z 273 AOAD/M_T DUTD BPA 0.3888 0.0000 0.0000 0 DUTD 80 1998-03-17T15:09:00Z 2023-12-07T09:45:00Z 1998-03-17T00:00:00Z 726840 LEIAR25.R4 LEIT BPA 0.3754 0.0000 0.0000 0 LEIT 765734 95 2023-12-07T14:00:00Z 2023-12-07T20:44:52Z EXTERNAL H-MASER 5.0 1997-06-01 1998-02-28 Oscilloquartz Neuchatel Type LSRH H3 1997-06-01T00:00:00Z EXTERNAL QUARTZ 5.0 1998-02-28 1998-03-26 Oscilloquartz Neuchatel Type LSRH H3 1998-02-28T00:00:00Z EXTERNAL RUBIDIUM 5.0 1998-03-26 1999-05-18 HP Rubidium standard,type 5065A,S/N 1736 A 0811 1998-03-26T00:00:00Z EXTERNAL H-MASER 5.0 1999-05-18 2000-01-06 SIGMA TAU HYDROGEN MASER, model MHM - 2010 S/N 0204 1999-05-18T00:00:00Z INTERNAL 2000-01-06 2000-01-17 2000-01-06T00:00:00Z EXTERNAL H-MASER 5.0 2000-01-17 2018-11-19 SIGMA TAU HYDROGEN MASER, model MHM - 2010 S/N 0204 2000-01-17T00:00:00Z EXTERNAL RUBIDIUM 10.0 2018-11-19 2019-02-12 standford research FS725 2018-11-19T00:00:00Z INTERNAL 2019-02-13 2023-12-07 On 2019-02-12 the 10 MHz external frequency from Rubibium was switched back to the the Sigma TAU MHM2010 MASER, but this resulted in immediate problems with the tracking due to unknown causes. The next day, the external frequency, was disconnected from the receiver, and the receiver is running on the internal oscillator. Data from 2019-02-12 12:03 until 2019-02-129:03 is not usable. 2019-02-13T00:00:00Z EXTERNAL H-MASER 10.0 2023-12-07 2023-12-07T20:44:51Z ABSOLUTE GRAVIMETERS MOBILE 1997-01-01 1997-01-01T00:00:00Z RELATIVE GRAVIMETERS MOBILE 1997-01-01 1997-01-01T00:00:00Z GI-RD Delft University of Technology Department of Geoscience and Remote Sensing (GRS) +31 6 52481939 Stevinweg 1 2628 CN Delft Netherlands (the) rd@kadaster.nl TU Delft GNSS team Delft University of Technology Department of Geoscience and Remote Sensing (GRS) +31 15 2784907 Stevinweg 1 2628 CN Delft Netherlands (the) gnss-citg@tudelft.nl DUT BKG http://gnss1.tudelft.nl/dpga X X X X +-------+ <-- 0.1995 / \ +---+-------------+---+ <-- 0.1606 TCR | | |---------------------------| |---------------------------------| |---------------------------------------| +---------------------------------------------+ | | | | +-+---------------------------------------------+-+ +-----------------+-------------+-----------------+ <-- 0.0320 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP (5/8" thread might differ from BPA!) <-- 0.3802 --> NOM=NRP TODO WSRT_1.jpg image 2023-03-01T00:00:00Z