Soyuz-U • Progress MS-06

First mission of the Progress cargo spacecraft on atop of Soyuz-2.1a. Break from using Soyuz-2.1a in favor of Soyuz-U  which lasted for two missions, was not particularly lucky for Progress vehicle missions - first mission with Soyuz-U, MS-04, finished with disaster before reaching orbit. Hopefully this flight will finish with success and Progress MS-06 will safely dock to ISS Zvezda module aft docking port.