Lots of good suggestions, here.
Another thing that might help, in my opinion, is to review the "heat map" and make it perhaps a semi-clear grid, something that lets one see the intensity of the signal, but at the same time allows to check the terrain underneath it.
On countless planets I have had to continually switch between combat mode and analysis mode to see what the terrain looked like, because the last thing I want to do is to end up in a mountainous area where it is impossible to land, because the heat map covers the terrain completely, and the terrain itself keeps morphing continually.