After slightly more than a month, SpaceX returns to the launch pad Sunday night to deliver the Telstar 18 Vantage satellite into orbit. The four-hour launch window opens at 11:28pm ET (03:28 UTC) for a mission from Cape Canaveral Air Force Station in Florida.
The flight of a new Block 5 version of the Falcon 9 booster will seek to loft a large telecommunications satellite into geostationary transfer orbit. At 7,060kg, this is the second heaviest satellite SpaceX has flown; the heaviest is the Telstar 19 Vantage satellite in July. It weighed 15kg more.
SpaceX will seek to recover the booster, which may prove a challenge given the tropical activity raging across the Atlantic basin. Due to the heavy payload, the first stage of the Falcon 9 rocket will land far out to sea, 660km downrange from the Florida spaceport. There, the Of Course I Still Love You drone ship will be waiting.