The charts that nelson61 is showing are the movement over time, so look worse than they really are. Here is (I think, anyways) a better display of the inclined orbit of F2 (zoom in so you can see its path).
Track satellite(s) ANIK F2 and see where are they located now. Check when there will be the next pass over your location
www.n2yo.com
As far as gravitational irregularities, from:
en.wikipedia.org
"A second effect to be taken into account is the longitudinal drift, caused by the asymmetry of the Earth – the equator is slightly elliptical (
equatorial eccentricity).
[23]: 156 There are two stable equilibrium points (at 75.3°E and 108°W) and two corresponding unstable points (at 165.3°E and 14.7°W). Any geostationary object placed between the equilibrium points would (without any action) be slowly accelerated towards the stable equilibrium position, causing a periodic longitude variation.
[64] The correction of this effect requires
station-keeping maneuvers with a maximal delta-v of about 2 m/s per year, depending on the desired longitude.
[65]"