Detailed Surface Scanner

[disorganise]

It keeps track of co-ordinates you stored. So you have to go there first, then hit save this location or whatever the terminology is.
Tbh I haven't tried it yet but it automatically adds planet bases when you dock at them. They appear as a outline icon when you next drop into orbital cruise.
It's an overlay system rather than anything "in" the game interface. Just in case I was leading up the garden path

 

[Major Klutz]

The discovery scanner isn't involved in the surface scan at all.
You can do a level 2 scan even if you don't have an ADS or DSS. Just ship sensors.

DSS is needed for level 3 scan. Level 3 scan gives much higher payout when selling exploration data.
Level 3 scan is needed to get a surface map and list of materials in the system map.

AFAIK, you can still get first discovered tag with just a level 2 scan.

 

[disorganise]

The discovery scanner isn't involved in the surface scan at all.
You can do a level 2 scan even if you don't have an ADS or DSS. Just ship sensors.

DSS is needed for level 3 scan. Level 3 scan gives much higher payout when selling exploration data.
Level 3 scan is needed to get a surface map and list of materials in the system map.

AFAIK, you can still get first discovered tag with just a level 2 scan.

Not sure if was a bug or not but just after 2.3 went live, my level 2's had materials. I only tested it because I'd raised a bug report that level 2 didn't put the body name into the journal and that was fixed in the patch notes. Would need to retest to confirm in 2.3.02

 

[eventure]

... However.....if you install and use TCE (Trade Computer Extension), it will pop up a little mini map and show you direction and stored locations. Only within about 100km though, but it's something

TCE will show all stored locations planet-wide with the Planetary Map panel and the Minimap panel will show, what is near (100km max.) to you.
If you know the latitude/longitude coordinates of a location, you can simply add them to the planetary map and TCE will guide you there.