NSS-6 in Jeddah

You need to check that you can see the satellite from your proposed dish site location.

See here: Satellite dish poining angles for Saudi Arabia

A magnetic compass will give you the direction.  Note that East=90 deg, South=180 deg and West=270 deg.

The elevation angle is the up/down angle and the concern is that the lower edge of the beam from the dish should miss any wall, roof or trees etc in front of it. 

0 deg elevation refers to beam pointed level towards the horizon.  90 deg elevation is straight up.  45 deg is half way.  In your case 23 deg is about 1/4 the way up the sky.  Use a school protractor as a guide, if you have one.  If the clearance angle is critical make a large accurate triangle of wood using tan calculation and sight along the sloping wood strip.  Try to miss the wall/roof by 2m if possible.

Best regards, Eric.