TU Delft GNSS team (gnss-citg@tudelft.nl) 2023-04-17 UPDATE Kootwijk Observatory for Satellite Geodesy KOSG 0 0 KOSG-25 13504M003 12 CONCRETE BLOCK BRASS NAIL 1991-01-01 SEDIMENTARY Kootwijk Gelderland Near Apeldoorn R117 5.0 2.0 1994-06-13 T175 5.0 2.0 1994-08-24 R117 0.0 2.0 1994-11-23 T209 0.0 2.0 1996-01-26 T229 0.0 2.0 1996-04-24 T222 0.0 2.0 1999-03-01 T222 0.0 2.0 1999-07-14T07:10:00Z 224 0.0 2.0 2000-11-24T17:34:00Z 229 0.0 0.0 2000-11-27T15:16:00Z The receiver has actually been installed on 2008-07-31T08:00Z and has been collecting data in parallel to KOSG as KOS2 until 2008-08-28, at which time it became the official receiver for this site. Data for this parallel period is available from the LDC at http://gnss1.lr.tudelft.nl 356091 0.0 0.0 2020-07-17T08:59:00Z Firmware update 356091 0.0 0.0 2009-04-17T15:04:00Z Firmware update 356091 0.0 0.0 2009-05-19T09:15:00Z Firmware update 356091 0.0 0.0 2010-03-20T14:30:00Z Firmware update 356091 0.0 0.0 2010-04-30T21:10:00Z Receiver removed for off-site testing 356091 0.0 0.0 2011-05-20T16:15:00Z Receiver reinstalled 356091 0.0 0.0 2012-04-23T14:00:00Z Model C146-6-1 DUT design (polyester cone) Power and Signal cable separated, power submitted by original GPS-receiver ROGUE SNR-8, and later batteries 119 0.105 0.0 0.0 0.0 30.0 2020-07-17T08:59:00Z On 18 Sep 2011 it was discovered that the radome has fallen off the station. The exact date and time that the Radome fell off is unknown, but from the inspection of the timeseries we believe it fell off on 12 Sep 2011. However, there may have been a prolonged period when the dome was only loosely connected resulting in rather unstable coordinate time series. We believe this started on June 20 2011, although there is also some increased scatter in the period leading up to this date (starting end of March). 119 0.105 0.0 0.0 0.0 30.0 2020-07-17T08:59:00Z Model C146-6-1 Power and Signal cable separated, power submitted by batteries The antenna itself remains unaltered since 1991. The antenna was removed from March 2016. 119 0.105 0.0 0.0 0.0 30.0 2020-07-17T08:59:00Z 12.458 37.501 -23.025 3.0 1993-04-14 -17.115 32.379 1.144 3.0 1993-04-14 388.53 630.93 -339.58 5.0 2013-06-23T00:00:00Z 5.0 1991-01-01 5.0 1996-01-27 5.0 1996-02-14 2000-11-24 5.0 2000-11-27 2008-08-28 1984-01-01 1973-01-01 1973-01-01 1973-01-01 2020-07-17T08:59:00Z 2008-07-17 2020-07-17T08:59:00Z 2020-07-17T08:59:00Z 2020-07-17T08:59:00Z ROGUE: DORNE MARGOLIN B (Allen Osborne Design) S/N 119 calibrated by DUT/KOSG in cooperation with ESA/ESTEC. ----- / + \ <-- 0.101 L2 | + | <-- 0.077 L1 +--------------------------------------------------+ <-- 0.070 TCR | | | | | | | | | | +------------------------x-------------------------+ <-- 0.000 ARP | | +-------------+ <-- -0.010 || || <-- 0.351 --> ARP: Antenna Reference Point]]> ROGUE: DORNE MARGOLIN B (Allen Osborne Design) S/N 119 calibrated by DUT/KOSG in cooperation with ESA/ESTEC. ----- / + \ <-- 0.101 L2 | + | <-- 0.077 L1 +--------------------------------------------------+ <-- 0.070 TCR | | | | | | | | | | +------------------------x-------------------------+ <-- 0.000 ARP | | +-------------+ <-- -0.010 || || <-- 0.351 --> ARP: Antenna Reference Point]]>