Hi, thanks for playing :)
The satellite placement is indeed quite tricky. Its based on normal of the ray hit from cursor to planet collider. Im not 100% happy how "top to bottom" works, but I think the bigger issue now is that satellites use real mesh collider, which is not really a sphere, but simplified mesh of the planet.
With spherical collider they were more responsive and smooth, now they jump a little. Don't know if this is the thing that bothers you, but it bothers me ;) and I will probably change it, but it requires going with 2 colliders on one object and I didn't have time to try this.