Yes, someone else tracing the beacon rays!
Yesterday evening, I had a closer look at the "center" beacon, the one left to the the "prism" pyramid. The beacons have 3 slots and while the relic inside turns, the slots remain fixed. That means: if the relic lights up, it will throw rays in 3 clearly defined directions.
You can trace the directions and possible endpoints using the SRV and external camera (I brought an SLF with beams too, but ext cam proved to be more precise), on the opposite side of each slot is a triangular piece you can aim by (like a gun). I cannot say very much yet, as it was late and it took me ages to locate the ruins again (Conda has rather limited downward view...), but it was interesting still. For the "eastern" slot points somewhere at the "prism" pyramid, the "southern" slot points directly southwards and the "western" slot exactly traces the middle line of the "prism spectrum" (its clearly visible on the map, the middle one of the "outbound" rays) and up to the big northern plateau at the point where this prominent "ramp" starts (hitting the southern one of the "clamps" on the plateau).
I don't know if this will lead to much in the end, but I will continue my efforts soon if time allows and possibly draw a map afterwards, took dozens of screenshots ofc but don't have them here right now. Did you use the same approach, or are the blue rays just connections between the beacons? Note that each beacon will emit 3 different beams, and their paths are fixed and predetermined.
[noob]