SKorean rocket lost after launch
SKOREA: A satellite launched atop South Korea's first space rocket is
thought to have burnt up in the earth's atmosphere after missing its
designated orbit, officials said Wednesday.
Seoul vowed to press on with its drive to become a space technology
leader despite Tuesday's setback, caused by the defective operation of a
fairing covering the satellite.
The science and technology ministry said one of the two aerodynamic
fairings covering the rocket's tip failed to fall away after opening in
preparation for the satellite's release.
Because of the fairing's weight the second stage of the rocket could
not achieve enough thrust to place the satellite in orbit. Its speed
fell to 6.2 km per second instead of an optimum eight km.
Deputy science minister Kim Jung-Hyun said the extra weight also
caused the rocket to steer upwards and the satellite to be released at
an altitude of 387 km (242 miles), far higher than the planned 302 km.
South Korea had invested more than 500 billion won (400 million
dollars) and much national pride in the satellite and the 33-metre
(108-foot) rocket.
The first stage was built in collaboration with Russia's Khrunichev
space centre.
The second stage, including the defective fairings, was constructed
by local engineers who also built the 100-kilogram (220-pound) research
satellite.
"South Korea was in charge of the separation of fairings while Russia
was in charge of overall technical assistance.
Therefore the two countries share the responsibility," Kim told
reporters.
"Further discussions (with Russia) will be held on this point."
The launch had been delayed seven times since 2005, most notably last
week when the countdown was stopped eight minutes before blastoff.
"We can say it was half successful, though the satellite failed to
enter orbit," President Lee Myung-Bak told a cabinet meeting Tuesday
evening.
SEOUL, Wednesday, AFP
|