A Russian Soyuz booster and an automated Progress resupply ship reached their launch pad Friday at the Baikonur Cosmodrome in Kazakhstan, two days before firing into orbit test out a new expedited rendezvous sequence that will culminate in the Progress spacecraft’s docking with the International Space Station just three-and-a-half hours after launch.

Three new space station residents blasted off Wednesday on a fast-track six-hour pursuit of the orbiting research complex, kicking off five months in space. The U.S.-Russian-Japanese space crew lifted off at 2102 GMT (5:02 p.m. EDT) from the Baikonur Cosmodrome in Kazakhstan, and docking occurred 0245 GMT (10:45 p.m. EDT).

The first Soyuz rocket to launch from a new cosmodrome in Russia’s Far East is being assembled for liftoff in April with a package of small research satellites.