Listening Posts

[Rickk Deckard]

I found a listening post in Electra and then proceeded to find the corresponding two other listening posts according to the given directions. Now I have longitude, latitude and planet coordinates, as well as distance ranges for all three posts. The problem is that I have no idea how to triangulate the information in order to identify the correct system.

Anyone knows how to identify the system in the 3D galactic map?

 

[Nick Sticks]

It's been a long time since I've done one of those but with all three you should have enough to be able to pinpoint the system.
Something to do with LY range.

Found it:

To identify the source system, each packet gives a minimum and maximum range from that Listening Post. The recommended approach is to bookmark the three systems containing Listening Posts, and use the galaxy map to select potential systems. The three systems form a triangle in space, and the source of the signal is within that triangle. Rough estimation based on the ratios of the three ranges is good enough.

Most of the time there is only one system within the correct range of all three stars, but where multiple candidate systems exist, the body designation is sufficient to eliminate incorrect candidates. Rarely do multiple systems next to each other have a landable body with the same designation.

https://canonn.science/codex/listening-posts/

 

[Rickk Deckard]

Well, actually I had already read that entry in cannon science. What I still don't know is how, in practice, do you triangulate the coordinates to know where the system is. For me the problem is that there is no tool in the galaxy map that allows you to set up a bubble of X light years around a star. So I don't know how to create the 3 bubbles to then see where they intersect each other. Or am I missing something here?

 

[Nick Sticks]

You're not missing too much.
After bookmarking the three systems containing the Listening Posts it's a case of looking for the target system within that space.
Travel to a potential system and then click on each bookmarked Listening Post to see if the distances match.
Repeat until you find it.

True, there is no bubble creating tool in the Galaxy Map but with a bit of leg work it can be done.

 

[Factabulous]

People who can 'math' can do the math to find the coords, then look up the nearby systems to the location https://www.spansh.co.uk/nearest

Another way (the one I use as I don't trust my math) is to pull the sphere of systems around the smallest radius LP from the EDSM API, then check the distance to the other 2 references - simple python script will do that

Or you can use something like the EDSM website to do the same thing - list systems by distance from each reference and see when the same system name appears at the right point in the 3 lists. You can often do something similar using the Nav panel for small distances, but it's pretty painful.