Random incrementing numbers

After looking in the G80 manual, I search in the G80 forum, and in several different Google searches and could not find and answer. When you turn on the G80 there are numbers that count up in a red box with an arrow on the left side that is in upper left hand side of the screen. Sometimes these numbers show up randomly while turned on. What are these numbers? Are they the amount of GPS satellites the G80 is connected to?