Magnetic raw data (SENSYS MXV3 system entire dataset) during campaign Ihlow-NIhK-2023-5, Ihlow (area 1-4), Germany

This is the measurement data from the geomagnetic prospection of the Ihlow monastery (district of Aurich, Lower Saxony, Germany). A total of about 4.4 ha were measured on 4 fields. The aim was to locate archaeological features. The measurements were carried out with a MXPDA system from Sensys with 5 FGM650/3 probes with a distance of 0.5m. Each probe consists of 2 sensors with 650mm basedistance and gives the gradient of the vertical component of the magnetic field (Z). The location was measured using a Stonex S10 GPS with Sapos HEPS correction data, resulting in a horizontal position accuracy of 0.01 – 0.02m and an elevation accuracy of 0.02 – 0.03m. The data were exported using DLMGPS (Sensys), whereby the coordinates of the individual probes are automatically determined from the central GPS position on the device. The data were exported without automatic track compensation. Due to the system, the position data is in UTM32/ETRS84 (EPSG 4647) and for conformity with PANGAEA also in WGS84 (EPSG 4326) (conversion is done with spTransform in R).