Live coverage: Atlas 5 countdown and launch journal

Loaded with more than 6,000 pounds of supplies, experiments, and hardware, a SpaceX Cargo Dragon freighter docked with the International Space Station at 1:40 p.m. EST (1840 GMT) Monday, one day after taking off from NASA’s Kennedy Space Center in Florida. This was the first Dragon cargo mission to automatically dock with the space station.

SpaceX and Arianespace recently announced plans to launch rideshare missions to sun-synchronous and geostationary orbit, dedicating big rocket capacity for small satellites as the U.S.-based launch broker Spaceflight committed to using a new Indian microsatellite launcher set to debut later this year.

A United Launch Alliance Atlas 5 rocket blasted off from Vandenberg Air Force Base in California at 5:49 a.m. local time (8:49 a.m. EDT; 1249 GMT) Thursday on the classified National Reconnaissance Office NROL-55 mission.