Latitude:  51° 28' 45" N (deg min sec), 51.4792° (decimal), 5128.75N (LORAN)
Longitude:  0° 27'  2" W (deg min sec), -0.4506° (decimal), 00027.04W (LORAN)
Elevation: 25 metres (82 feet) -- validated against 28 metres (92 feet)