Site Information for Zegveld

Zegveld

Integrated Geodetic Reference Station (IGRS), Veenweiden Innovatiecentrum, Oude Meije 18, 3474 KM Zegveld.

On-site contact: Sanneke van Asselen, Deltares
GNSS contact: Hans van der Marel, TUD/GRS

Name	Marker	Receiver	Antenna	Operator	Network	Start date	End date
zegv	13543M001	SEPT POLARX5	SEPCHOKE_B3E6	DELTARES	IGRS	2020-02-07

ID	Name	dX	dY	dZ	Instruments	Installed	Removed
13543M001	TOP OF IGRS MAST	0.0000	0.0000	0.0000	zegv	2020-01-22T10:00Z

Marker ID: 13543M001
Operator: TUD/CITG/GRS
Log file: zegv00nld_20230417.log

Receiver

Installed	week/d doy	Removed	week/d doy	Receiver type	S/N	Firmware
2020-02-07T09:45Z	2091/5 038	2020-02-07T20:40Z	2091/5 038	SEPT POLARX5	3046503	5.3.1
2020-02-07T20:40Z	2091/5 038	2023-04-17T06:39Z	2258/1 107	SEPT POLARX5	3046503	5.3.2
2023-04-17T06:39Z	2258/1 107			SEPT POLARX5	3046503	5.5.0

Installed	week/d doy	Removed	week/d doy	Antenna type	Dome	S/N	Height	Antenna calibration
2020-01-22T10:00Z	2089/3 022			SEPCHOKE_B3E6	SPKE	5461	0.0000

Installed	week/d doy	Removed	week/d doy	Ext. Frequency type
2020-02-07T09:45Z	2091/5 038			INTERNAL

2020-01-22T10:00Z 2089/3 022 -: The GNSS instrument mechanically connected to two 90 cm trihedral corner reflectors for co-locating (In)SAR ascending and descending radar satellite tracks. The GNSS monument itself consists of a SECO mount, on top of a 2.5 m heigh 8 cm diameter stainless steel pipe, with a 35 cm square strudded footplate. On each side, a 90 cm corner reflector for ascending and descending InSAR tracks is attached. 1.42 m below the GNSS monument a GCP for LIDAR measurements (the top plate of the IGRS) is present. The whole assembly is mounted on a concrete block fixed to 3 steel/grouted 11.5 long foundation piles to sub-surface sand deposit. On top of the sand layer is a 8 m peat toplayer. The top plate of the IGRS is 1.122 meter above the concrete block, the GNSS monument is 1.416 m above the top-plate (LIDAR GCP).