Temporal orbit

A temporal orbit was a manoeuvre involving a TARDIS travelling back over its own time stream and holding in orbit over a single temporal location. This manoeuvre was used by the Doctor in his TARDIS (though Grace Holloway was at the controls) to reverse the affects of the Eye of Harmony on Earth in 1996. (DW: Doctor Who (1996)) The Doctor also utilised a temporal orbit in order to develop a cure for Janusian raiation sickness after Samantha Jones had died from it (yet he returned and saved her). (EDA: The Janus Conjunction)