Hartland (HAD) observatory

IAGA code	HAD
Location	Hartland
Country	United Kingdom
Open-Close	1957-
INTERMAGNET member (view)

Website	http://geomag.bgs.ac.uk/operations/hartland.html

Altitude	95 m

Geographic coordinates		Geomagnetic coordinates (IGRF-13 2020.5)		Corrected geomagnetic coordinates (IGRF-13 2020.5)
Latitude	Longitude	Latitude	Longitude	Latitude	Longitude
50.995°N	355.516°E	53.41°N	79.84°E	46.71°N	73.5°E

HAD contributes to aa, am, Kp indices				K=9 lower limit	531 nT