What does Dolphin consider an "impression"?

I put a banner in my header on Friday night before I left my office.  Just logged into my banner manager, and Dolphin reports 2819 impressions.  Since I have the location set for "top", the banner obviously displays in my header.  Theoretically, the header loads for every page view.  Can I assume then that I have had 2819 page views since Friday night?

I'm just trying to figure out how the system is counting impressions, because OpenX and Google Analytics are reporting different numbers, and I want to see which one is more accurate and why.

Thanks,

Bill

No one knows?

There are so many things we know,

It just makes all warm and aglow.

But there is a strike,

And that seems to be impeding the newbie tikes.

We apologize, but the CUGA (Coders Union of General Abuse) Local 29 will not allow us to answer beyond that.  We promise to help as soon as the strike is over.