Launch from the Baikonur Cosmodrome and
landing 428 km west of the intended site in Kazakhstan (414 km west of Arkalyk)
due of a ballistic descent.
Sheikh
Muszaphar Shukor was the
first space traveller from
Malaysia. Sheikh
Muszaphar Shukor flew as a guest of the Russian government.
Under this program, in exchange for the multi-billion purchase of fighter jets
by Malaysia, the Russian Federation bore the cost of training two Malaysians
for space travel and for sending one to the
ISS. Sheikh
Muszaphar Shukor's role aboard the
Soyuz is referred to as a
Spaceflight Participant in English-language Russian
Federal Space Agency and
NASA documents and press briefings.
This
mission carried out the
ISS
Expedition 16.
Following a two-day solo flight
Soyuz TMA-11 docked with the
ISS on October 12, 2007. Peggy
Whitson and Yuri
Malenchenko replaced
Expedition 15 crew
members Fyodor
Yurchikhin and Oleg
Kotov.
The
Soyuz spacecraft is composed of three elements
attached end-to-end - the Orbital Module, the Descent Module and the
Instrumentation/Propulsion Module. The crew occupied the central element, the
Descent Module. The other two modules are jettisoned prior to re-entry. They
burn up in the atmosphere, so only the Descent Module returned to Earth.
The
deorbit burn lasted 258.3 seconds. Having shed two-thirds of its mass, the
Soyuz reached Entry Interface - a point 400,000 feet
(121.9 kilometers) above the Earth, where friction due to the thickening
atmosphere began to heat its outer surfaces. With only 23 minutes left before
it lands on the grassy plains of central Asia, attention in the module turned
to slowing its rate of descent.
Eight minutes later, the spacecraft was
streaking through the sky at a rate of 755 feet (230 meters) per second. Before
it touched down, its speed slowed to only 5 feet (1.5 meter) per second, and it
lands at an even lower speed than that. Several onboard features ensure that
the vehicle and crew land safely and in relative comfort.
Four parachutes,
deployed 15 minutes before landing, dramatically slowed the vehicle's rate of
descent. Two pilot parachutes were the first to be released, and a drogue chute
attached to the second one followed immediately after. The drogue, measuring 24
square meters (258 square feet) in area, slowed the rate of descent from 755
feet (230 meters) per second to 262 feet (80 meters) per second.
The main
parachute was the last to emerge. It is the largest chute, with a surface area
of 10,764 square feet (1,000 square meters). Its harnesses shifted the
vehicle's attitude to a 30-degree angle relative to the ground, dissipating
heat, and then shifted it again to a straight vertical descent prior to
landing.
The main chute slowed the
Soyuz to a descent rate of only 24 feet (7.3 meters)
per second, which is still too fast for a comfortable landing. One second
before touchdown, two sets of three small engines on the bottom of the vehicle
fired, slowing the vehicle to soften the landing.
Similar to
Soyuz TMA-1 and
Soyuz TMA-10 the Soyuz performed a
ballistic reentry, a reentry steeper than a normal reentry, due to a
malfunction and landed 428 km from the intended landing point. This was the
second such event in a row for Soyuz TMA. Although the crew were recovered with
no serious injuries, the spacecraft's hatch and antenna suffered burn damage
during the unusual reentry. On May 24, 2008 Anatoli Perminov, the head of the
Russian Federal Space Agency, announced the results of the investigation into
the malfunction. The principal reason for the unusual re-entry was failure of
the service module to separate normally as a result of one of five pyro-bolts
malfunctioning. The root cause of the failure was not definitively determined,
but the Russian investigation concluded that long-term exposure to the
electrical environment surrounding the ISS may have damaged the firing system.
A similar anomaly occurred during the re-entry of
Soyuz 5 in 1969.