Quick and simple calculation
As it is a direct north south
question there is no departure formula etc to worry about
1.5 x 890 = 1335km travelled which is
= 717.74nm
We know that for each degree of
latitude there is 60nm
717.74/60 =11.96° or 12° effectively
travelled north bound
If you are 10° South and you are
travelling north it only requires 10° to get to the equator then you travel
another 2° to land up at N02° 00