An early bird rocket launch from the Florida spaceport will take to the skies before dawn Thursday when an Atlas 5 lofts a classified U.S. government satellite.

Rocket Lab scrubbed a planned launch from New Zealand Wednesday with 10 small Earth observation satellites for customers in the United States and Japan. Officials have not confirmed a new target launch date for the Electron rocket.

Arianespace launched an Ariane 5 rocket on its sixth and final flight of the year at 2037 GMT (3:37 p.m. EST) Tuesday, blasting off from Kourou, French Guiana, with India’s heaviest-ever satellite and a South Korean weather satellite equipped with a U.S.-made imaging camera.