Here's this month's update, with plenty of new interesting things. I've had an "experimental" version of the sheet for quite a while, featuring the daily data, with calculations and charts drawn from that. However, before February, nothing much of interest has appeared on there, so I didn't publish it. Now, in February, there has been an interesting increase in systems that's only visible on a daily chart and smoothed out on a monthly, so I planned to put all them in after the turn of the month. That time is now. (Then came what was a surprise to me: Orvidius also added two automatically rendered graphs to EDAstro, so that's pretty cool.)
You can find the data on the "Daily activity (Sy/St/Pl)" subsheet - I didn't include ELWs, AWs an expeditions from the monthly one), and more importantly, the charts on the
"Charts - daily" subsheet. There's also a daily sum of the last 30 days' of data (sums in the case of systems, average in the cases of ratios), which smooths out the daily graphs, so to speak, and makes it easier to notice some trends on them. These were mostly visible on the monthly charts already, but there are many more data points this way of course.
One thing that
isn't visible there is comparing the new systems uploaded to the new bodies / systems ratio. That appears to suggest that much of the time,
when people discover more systems, they scan less bodies per system. Take a look at this:
(B/S is multiplied by an arbitrary 10000 to make it easier to see and compare.)
Notice that most of the time, when Systems - the blue line - increase, bodies per systems - the red line - goes down. Especially on the weekend spikes. It's not always the case, and I suspect new explorers might be responsible for this, as they are still starry-eyed and use the FSS more. You can also notice the day when the September update went live and the servers were offline for a longer time, as both graphs take a hit on that day.
On another matter, although the slow but steady decline of new Stars / Systems was visible on the monthly charts already, it's worth comparing the new daily one, especially the 30-day average, with those of Bodies / Systems. First, here are the stars:
As you can see, outside of when DW2 proceeded through the core, there have been only small increases.
Now, compare with planets:
There are bumps, there are bigger increases.
So, what might explain these? First off, new Bodies / Systems depends on how much explorers use the FSS, while new Stars / Systems doesn't: they are auto-scanned. Second, when there are more explorers in the more dense regions, they likely get more stars too. This would explain why DW2 had higher levels of stars, before it left the core. Third, explorers are probably re-treading ground more and more: after all, the majority of exploration traffic on EDSM are the Sol-Colonia, Colonia-Sgr A* and Sol-Sgr A* lines, in this order. If an explorer goes into a system that was already discovered before the FSS, but only had the main star scanned and uploaded, then they'll add one less star than if the system weren't uploaded before.
Fourth, it could also be that explorers are spending less time outside the core. It would be interesting to see this too, but unfortunately, the EDSM traffic report videos have been discontinued.
Oh, and an interesting thing to note, one that's not visible on the daily charts linked above, but was visible on the historic monthly charts: before the FSS, new Stars / Systems had a slow but mostly steady increase. Planets, much less so, but ELWs, much more so. I think it was mostly just explorers becoming more thorough on average. Then the FSS happened, and while Planets understandably shot up, ELWs took quite a blow. Meanwhile, AWs shot up as well, then dropped back to previous levels(!) as interest waned.
What else is there... oh yes, February! The interesting thing is although there was only a slight increase in February, on a daily level there was a big spike, and a new peak since DW2. After stagnating for over half a year, on Febr. 2 the weekend peak suddenly shot to 71k new systems, up from 52k the previous Sunday. The next Sunday saw a new post-DW2 record at 73k. Following that, activity has tapered off back to the previous levels of January. The question is:
what happened at the beginning of February? The only thing that comes to my mind would be the start of the new squadron season, but activity there doesn't seem to have increased so far, and previous seasons didn't see such corresponding spikes. The game wasn't on sale either, and the big holiday sale has been quite a while.
Meanwhile, Steam charts showed a significant
decrease in players (the gains over the holiday and sale are gone), so that can't be it either.
So, does anyone have any idea what else it might have been?