| The goal of this expedition was to navigate to the North Magnetic Pole by traditional means using a sextant and an astrocompass. |
| The astrocompass functions by means of measured movement in three independent axes. |
| Each patrol is also given a first-aid kit, a global positioning system compass, an astrocompass and a shortwave radio. |
| A form of astrocompass is the sun compass, which utilizes the shadow of a pin. |
| The aircraft's magnetic compass probably appeared to be working well, and setting up the astrocompass would have been a nuisance. |
