Weather Conditions
SpaceX scrubbed the Falcon Heavy launch in the final minute due to poor weather at Kennedy Space Center. The 45th Weather Squadron had forecast a 70 percent chance for favorable weather during the launch window, but meteorologists were monitoring violations of cumulus cloud rules and surface electric field rules. A Carolina Low was expected to push a weak back-door cold front through central Florida early Monday morning, with the position of the frontal boundary determining whether clouds would be enhanced over the Spaceport.
Mission Details
The Falcon Heavy rocket was scheduled to launch the ViaSat-3 Flight 3 communications satellite from Launch Complex 39A at NASA's Kennedy Space Center near Cape Canaveral. The six-metric-ton satellite, built by Boeing, was set to deploy from the rocket's upper stage nearly five hours after launch and would be positioned at 158.55 degrees East along the equator to provide connectivity to the Asia-Pacific region.
Booster Configuration
The mission involved three boosters with varied flight histories. The two side boosters, tail numbers 1072 and 1075, were scheduled to fly for their second and 22nd flights respectively, targeting landings at Landing Zones 2 and 40 at Cape Canaveral Space Force Station. The center core, tail number B1098, was a brand new booster that SpaceX planned to expend into the Atlantic Ocean rather than recover.
Falcon Heavy Mission Significance
This launch marked the 12th flight of the Falcon Heavy rocket, making it the first Falcon Heavy launch in more than 18 months. It represented the final ViaSat-3 satellite mission, concluding over a decade of work on the program. Falcon Heavy is more powerful than the Atlas 5 rocket used for the ViaSat-3 F2 mission, allowing for a more favorable transfer orbit with shorter on-orbit commissioning time. 
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