SEOUL — South Korea launched its first homemade rocket on Thursday, a mission that was solely partly profitable however that officers referred to as an necessary step towards ​inserting domestically made satellites in orbit to higher monitor rising threats from North Korea.

The three-stage Nuri rocket, constructed by the federal government’s Korea Aerospace Analysis Institute with the assistance of lots of of native corporations, lifted off from the Naro Area Middle in Goheung, on the southwestern tip of South Korea. The rocket carried a 1.5-ton dummy payload to check its capability to thrust a man-made satellite tv for pc into orbit 373 to 497 miles above the Earth.

Somewhat greater than an hour after the takeoff, President Moon Jae-in stated the launching “didn’t attain its aim fully” however confirmed “wonderful outcomes for a primary strive.” He stated Nuri pushed its payload to area 434 miles above the Earth however the mission was “incomplete.”

Officers stated that the third stage of the rocket burned out ahead of deliberate, failing to offer the dummy satellite tv for pc sufficient pace to stabilize and keep in orbit.

“We have been only one step wanting reaching our aim,” Mr. Moon stated throughout a information convention, urging engineers to make the subsequent launch, scheduled for Could, “an entire success.”

The launch on Thursday was broadcast stay on all main TV stations and on web streaming platforms like YouTube. Mr. Moon’s authorities had billed the launch as an enormous step ahead in South Korea’s effort to grow to be a brand new chief in area expertise.

South Korea has nurtured a decades-long ambition to affix the elite membership of countries constructing rockets able to inserting communications, surveillance and different satellites in orbit. After a number of delays and failures, South Korea’s Naro rocket succeeded in placing a satellite tv for pc in orbit for analysis and improvement functions in 2013. However in contrast to Nuri, the rocket launched on Thursday utilizing home expertise, Naro was constructed collectively with Russia.

South Korea has spent almost $1.7 billion to construct the 200-ton Nuri, also called the Korea Area Launch Automobile-II. It deliberate to conduct a number of extra trial launches of the Nuri system, together with one scheduled for Could.

With Nuri, South Korea has hoped to safe a foothold in area expertise, the newest high-tech market the place the nation has determined to grow to be a participant. Most rocket launches all over the world have been carried out by america, Russia, France, China, Japan and India.

South Korea plans to ship a moon orbiter subsequent fall aboard a Falcon 9 rocket from SpaceX, the corporate based by Elon Musk. Mr. Moon has stated that his nation expects to have the ability to land an uncrewed spacecraft on the moon utilizing South Korean rockets by 2030.

With its personal rocket capabilities, South Korea says it hopes to construct satellite-based navigation and next-generation communications networks. It additionally desires to carve out a portion of the world’s satellite-launching market, an more and more crowded discipline as main industrialized international locations jostle to construct their very own home applications.

The Nuri launch additionally mirrored South Korea’s need to be much less depending on United States forces to observe North Korea, in addition to its aim of regaining wartime operational management of its 550,000-member army. Beneath a bilateral settlement with Washington, South Korean troops fall underneath the command of an American normal ought to struggle get away on the Korean Peninsula.

South Korea has no army spy satellites of its personal, relying as a substitute on United States satellites to observe the North. Putting its personal “eyes and ears” in area grew to become extra pressing as North Korea’s nuclear and missile capabilities expanded​ over time and after President Donald J. Trump threatened to withdraw American troops​ in South Korea.

South Korea positioned its first army communications satellite tv for pc into orbit final July, carried by a SpaceX Falcon 9 rocket​.

North Korea, which has its personal rocket program, has criticized the South’s area program​ for its potential army functions​. Area rockets and intercontinental ballistic missiles use related applied sciences. North Korea launched satellite tv for pc area autos earlier than it efficiently examined three I.C.B.M.s in 2017. The United Nations Safety Council banned the North from launching area rockets that have been getting used as exams for the nation’s long-range ballistic missile program.

South Korea’s area ambitions have been hamstrung for years by agreements with america. American officers feared {that a} strong South Korean rocket program would lead the nation to construct missiles, accelerating a regional arms race. However final 12 months, Washington and Seoul agreed to take away among the restrictions, permitting South Korea to construct solid-fuel rockets for space-launch autos.

Stable-fuel rockets are cheaper than liquid-fuel rockets like Nuri. They’re additionally excellent for long-range ballistic missiles as a result of they’re simpler to move and put together for launch. North Korea has accused the South of hypocrisy for increasing its personal weapons capabilities whereas criticizing the North’s.