ADU stands for Active Data Uploader. It's a service that allows you keeping track of your stats and see detailed stats about colonies using the ADU.
To use the ADU, you have to set Coloniae Sync on in the statistics screen.
Your colony should appear maximum 5 minutes after you activated, depending on the fluidity of your game. This is available to online colonies only.
Timereference is the amount of years the have passed in game since the foundation of the colony/city or since update .75 (Nov 8 2018) when years and periods have been added to the game.
1 year = 60 periods and
1 period = 2000/fps seconds, so with 30 fps 1 period is 67 seconds and 1 year is 1h7min. Data is sent to the ADU on every period.
Estimated playtime is the amount of time the colony would've been online for if it was running at 30 fps.
For old GDP nostalgics, "Value of Reserves" is exactly your old GDP.
Net Worth is the old GDP plus the value of buildings.
This is the index. All colonies using the ADU appear here.
Thanks to Paul aka Pavlxiiv for beta-testing!