Site Information for Enschede

ENSC (Enschede IGRS)

Marker ID: 13552M001
Operator: TU Delft
Log file: ensc00nld_20250218.log

Receiver

Installed	week/d doy	Removed	week/d doy	Receiver type	S/N	Firmware
2025-02-18T15:18Z	2354/2 049			SEPT POLARX5	3080083	5.5.0

Antenna

Installed	week/d doy	Removed	week/d doy	Antenna type	Dome	S/N	Height	Antenna calibration
2025-02-18T15:18Z	2354/2 049			SEPCHOKE_B3E6	SPKE	5900	0.0000

External Frequency

Installed	week/d doy	Removed	week/d doy	Ext. Frequency type
2025-02-18T15:18Z	2354/2 049			INTERNAL

Notes

2024-04-23T14:00Z 2311/2 114 -

The GNSS instrument mechanically connected to two 90 cm trihedral corner reflectors for co-locating (In)SAR ascending and descending radar observations. 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. 1.414 m below the GNSS antenna a GCP for LIDAR measurements (the top plate of the IGRS) is present. The top plate (LIDAR CGP) of the IGRS is 1.130 meter above the concrete block. The GNSS antenna reference point (GNSS ARP) is 1.414 m above the top-plate (LIDAR GCP) and 2.55 m above the concrete block. The whole assembly is mounted on a 35 cm thick concrete block fixed to 3 steel/grouted 1.50-1.70 m long foundation piles, with a diameter of 11.6 cm, to a sub-surface sand deposit layer.