This means that the compass lubber line is pointing half a degree E of the keel line and therefore the whole compass mounting has to be corrected by rotating the instrument's mounting by half a degree to the West (or anti clockwise) which is to the "minus" side.
Le nto ithetha ukuthi ubhashubhashu lo mgca lukhombe kwisiqingatha seqondo elingu E sesiseko somgca kwaye ke ngoku yonke ikhampasi enyukayo ilungiswe ngokujikelezisa isixhobo esinyuka ngesiqingatha seqondo kwintshona (okanye ngobuyo mva) le ikwicala lokuthabatha.