South Korea’s first domestically produced space rocket reached its desired altitude but failed to deliver a dummy payload into orbit in its first test launch. South Korean President Moon Jae-in still described the test as an “excellent accomplishment.”
South Korean President Moon Jae-in, who observed the launch on-site, still described the test as an “excellent accomplishment” that takes the country a step further in its pursuit of a satellite launch program.
Lim Hye-sook, the country’s science minister, said Nuri’s first and second stages separated properly and that the third stage ejected the payload – a 1.5-ton block of stainless steel and aluminum – at 700 kilometers above Earth.But she said launch data suggested that the third stage’s engine burned out early after 475 seconds, about 50 seconds shorter than planned, failing to provide the payload with enough speed to stabilize in orbit.
The launch, which took place at 5 p.m. , had been delayed by an hour because engineers needed more time to examine the rocket’s valves. There had also been concerns that strong winds and other conditions would pose challenges for a successful launch. “The separations of the rockets, fairings and the dummy satellite worked smoothly. All this was done based on technology that is completely ours,” he added.
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