I have just read through the UP tests spreadsheet. There is lots of good science being done with the UP, but recently we seem to be getting speculation in the requested tests with no obvious theory behind the request other than it hasn't been done yet, presumably in response to the lack of significant progress. Can I reiterate that theory exists to guide experiment, and experiment exists to support/advance/disprove theory.
So I was surprised to see that one test has not yet been done, as to me it is the most obvious: test29, honk the UP in the large crater on Merope 5C. I requested this in my Simples mk2 theory. To me the sonogram is a simple sequence diagram of instructions; that all UPs to date point to the centre of Merope5C gives the clearest hint possible that is the planetary body where the instructions should be followed. The small circle slightly offset from the centre of the sonogram circle represents the largest crater on 5C, the clearest landmark on that planet. I think the glyphs surrounding the circle serve two purposes, firstly representing PI as an instruction to use a logarithmic vertical scale so that the diagram is displayed as a circle, secondly representing the order of the actions to be take at 5C. To recap:
1) approach the large crater on 5C (i.e. along the radial line)
2) land inside the crater but offset South East from the centre, since the radial line clearly shows that offset ***
3) honk the UP
4) something hidden should become visible due to the EMP
*** I remember one sonogram (probably from thread 7) that clearly showed this small circle (which I interpret as representing the large crater) & the radial line leading to it with the offset . However I didn't store a copy of that diagram. I have been looking at the few sonograms I have kept & to me the offset looks to be about (0 to 1, -2) from the crater centre, but my confidence in that value is on the low side & I would really like to see that better diagram again if anyone remembers it!
I have found post #8436 by Cmdr Eugen Bold from thread7, & he reports the centre of the large crater at (19 -41), so my rough guess is that the UP should be honked at around (19 to 20, -43). Interestingly Cmdr Bold also reports in that post an unusual crater within the larger with a central peak at (19.4908, -43.0012). Hence I think the area around that peak should be heavily honked with a UP, PLEASE!!
Note: I think from the videos that the EMP effect is limited to around 250 metres so testing this hypothesis could require quite a lot of repetition in different locations around that area before the theory could be discounted.
Note2: I have no real confidence in any theory that says why the UP provides us with these instructions or who/what species its originators are, so I disclaim all responsibility if following this sequence releases a horde of angry Thargoids!!