The Cygnus spacecraft on Sunday became the second cargo ship designed by a private firm to take supplies to the International Space Station, or ISS, when it successfully docked with the orbital platform, NASA said.
After a week's delay, the unmanned cargo vessel developed by Orbital Science arrived at the ISS, where the astronauts there managed to dock it to the Harmony module using a robotic arm at 1244 GMT, NASA said in a statement.
The crew on Monday afternoon will open the Cygnus hatch to begin unloading the more than 590 kilos (about 1300 pounds) of supplies on board, including food and clothing.
Orbital Science is the second private company to undertake a cargo transport mission to the ISS. The California firm SpaceX has been sending supplies to the space station since May 2012 using its Dragon capsule.
Cygnus, unlike Dragon, which is designed to return to Earth after completing its mission, does not provide return capability, but can be loaded with obsolete equipment and trash and is programmed to burn up on reentry into the atmosphere.
It is scheduled to remain docked to the ISS until late October.
The cargo vessel was launched on Sept. 18 from Virginia and it was originally scheduled to arrive at the ISS on Sept. 22, but that event was delayed by a software failure before it began its maneuvering to approach the space station.
Cygnus was captured by the Canadarm2 robot arm operated by flight engineers Luca Parmitano and Karen Nyberg on board the ISS. EFE