Well Gan was originally South of the Equator, but after Frank Easto (supernav on 205 Sqn) found he was 2 miles north of track on arrival after a 10 hour sortie from Changi., he spent the rest of our SAR detachment taking star and sun shots and proved Gan was not where it was supposed to be, but just North of the Equator.
Just a little snippet of info, 'cos it don't look like Gan.