Astronauts Tim Kopra and Tim Peake switched their spacesuits to battery power at 7:48 a.m. EST, signifying the start of today’s spacewalk, planned for about six and a half hours.
Kopra is wearing a spacesuit with red stripes and is designated EV1. His helmet camera displays the number 17. Peake is wearing a spacesuit with no stripes and is designated EV2. His helmet camera displays the number 20.
The astronauts are embarking on the 192nd spacewalk in support of space station assembly and maintenance to replace a failed voltage regulator that caused a loss of power to one of the station’s eight power channels last November.
The Electrical Power System consists of an acre of solar panels that take in sunlight to generate, store, and distribute power.
NASA Television is broadcasting the spacewalk at www.nasa.gov/nasatv.