It is the DISTANCE between earth and moon that governs the gravitational pull of EACH UPON THE OTHER. Since the moon's orbit around the earth is elliptical, the moon goes through perigee (its smallest distance to the earth) and apogee (its greatest distance) every month. Perigee and apogee can occur at any phase.
What is an Auction and how does it work? An Auction is where property is sold at a specific time and place to the highest bidder. Most auctions require a person to get a bidder number or other identifying item prior to bidding.
Real-Time Bidding is a second price auction in which ads on bought on an exchange through a Demand-Side Platform. Programmatic can include not only RTB, but also any kind of automated buying like: automated guaranteed/programmatic direct, private marketplace & Deal ID executions, RFP/IO/workflow automation.