First Value is directly influenced by completing missions and talking to certain chirpers. (Position: "Neptune VSSega Hard Girls.exe"+437C30+13D40)
The Second Value is, as of right now, unknown. (Position: "Neptune VSSega Hard Girls.exe"+437C30+C664C)
Setting the addresses to different values changes the current observation level. I am unsure how they correlate, but they do in some way seem to add up.
There must be something else that arbitrarily increases the observation as setting these values to the same value at different save points has different outcomes.
At New Game, The Values simply add up and then are divided by 100 to get the current observation level, ignoring decimals.