If you’re revolving about the other planet, the direction of tidal forces on your planet should rotate as well. If both planets are fixed, the gradient on your planet should be constant.
edit: Nevermind, after seeing that you specified that the orbit is synchronous.
If you’re revolving about the other planet, the direction of tidal forces on your planet should rotate as well. If both planets are fixed, the gradient on your planet should be constant.
edit: Nevermind, after seeing that you specified that the orbit is synchronous.