The Ascension Island magnetic observatory is situated 40m outside the perimeter fence of the Cable and Wireless Earth Station, Donkey Plain, on the south-west side of the site.
The observatory was installed by the British Geological Survey with financial support from a consortium of oil companies and became operational in September 1992.
Ascension Island magnetic observatory is part of the INTERMAGNET network.
|7.949° S||345.624° E|
|2.809° S||057.530° E|
177m above mean sea level
Geomagnetic coordinates are approximations calculated using the 12th generation IGRF at epoch 2015.5.