Harmony (ISS Module) - Specifications

Specifications

Weighing approximately 14,288 kilograms (31,500 lb), Harmony is the second of three node module on USOS. The design is based on the existing Multi-Purpose Logistics Module, as well as the European Space Agency's Columbus Module. There are six Common Berthing Mechanisms (CBMs) on Harmony, the one that connects it to Destiny is passive, the rest are active. Harmony is managed by NASA's Marshall Space Flight Center in Huntsville, Alabama. Its deployment expanded the Space Station, allowing it to grow from the size of a three-bedroom house, to the space equivalent of a typical five-bedroom house, once the Japanese Kibō and European Columbus laboratories are attached. The Space Station robotic arm, Canadarm2, is able to operate from a powered grapple fixture on the exterior of Harmony. After the cancellation of the Habitation Module, Harmony was chosen to house the American Crew Quarters. The first two were delivered on STS-126 and the second two on STS-128.

The node measures 7.2 metres (24 ft) in length, and it has a diameter of 4.4 metres (14 ft).