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Spektr: Michael Foale points out large camera.
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Take a Tour of Mir
Spektr
(back to Tour)
The Spektr ("Spectrum") module arrived at the Mir complex in May 1995. It was
designed for remote sensing of Earth's environment, and contains equipment for
atmospheric research and surface studies. The Astra-2 spectrometer measures
constituents of the gaseous environment at Mir's altitude; X-ray and gamma-ray
detectors measure emissions from the station's passage through Earth's magnetic
field. A variety of other spectrometers are also installed.
Until late June 1997, Spektr, about the same size as Kristall, served as the
living quarters for American astronauts staying on Mir as part of the joint
Russian-American program. The module also has four solar panels which before
June 1997 generated about half of the station's electrical power.
On June 25, 1997, the Progress M-34 spacecraft crashed into Spektr while
maneuvering for a docking with Kvant-1. The collision damaged one of Spektr's
solar panels and also punctured the hull, depressurizing the module. The module
was sealed off from the rest of the station, keeping the rest of the station
from losing air but cutting off the power cables that supplied electricity to
the rest of the station from Spektr's solar panels. An "internal" spacewalk
inside the depressurized module in August 1997 by cosmonauts Anatoly Solovyov
and Pavel Vinogradov succeeded in restoring those connections, and a second
internal spacewalk by them in October connected two of the panels to a computer
system that allows them to be controlled remotely, so they can align with the
Sun.
Spektr is presently depressurized and isolated from the remainder of the Mir
complex. Modifications have been made to the Spektr hatch to allow power and
control cable penetrations through the hatch, while still isolating Spektr from
the remaining station. These modifications have allowed power generation to
return to approximately 70% of the pre-collision conditions.
Footage: NASA.
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