Korea Featured Space Programs

[Nilgiri]

#perigeeaerospac #turbopumptest #powerpacktest #spacetech… | Perigee

Turbopump Water Flow Test Completed We have completed a Water Flow Test for the turbopump, verifying its stable operation under high-pressure and high-speed rotational conditions. This test was conducted to reduce system-wide risks and pre-validate the mechanical performance and reliability of...

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Perigee Turbopump Water Flow Test Completed

We have completed a Water Flow Test for the turbopump, verifying its stable operation under high-pressure and high-speed rotational conditions.

This test was conducted to reduce system-wide risks and pre-validate the mechanical performance and reliability of key components ahead of the currently ongoing Powerpack Test.

The next step will be an engine-level test that integrates the combustion chamber, valves, and turbopump. We plan to proceed with engine ignition and full propulsion system integration.

I always get a warm fuzzy feeling when I see the buckingham-pi theorem used in hands-on way.

Yes water is a fluid (just like gas) and lot cheaper to test with!....just need to make the appropriate dimensionless scaling parameters.

 

[urban mine]

(2nd LD) S. Korea successfully launches 4th spy satellite into orbit | Yonhap News Agency

(ATTN: RECASTS headline, lead; UPDATES details in paras 3-4)By Lee Minji SEOUL, April 22...

en.yna.co.kr

S. Korea successfully launches 4th spy satellite into orbit​

SEOUL, April 22 (Yonhap) -- South Korea successfully launched its fourth homegrown military spy satellite from a U.S. space base in Florida, the defense ministry said Tuesday, in efforts to strengthen its independent surveillance capabilities on North Korea.

The spy satellite lifted off at 8:48 p.m. Monday (U.S. time) from Cape Canaveral Space Force Station as planned and placed the reconnaissance satellite into orbit at 9:03 p.m., 15 minutes after liftoff, according to the ministry.

The launched satellite succeeded in communicating with an overseas ground station at 11:27 p.m., indicating the satellite's normal operation.

"This is anticipated to reinforce the grouped operation of the satellites, alongside the three satellites in normal operation, and enhance capabilities to detect signs of North Korea's provocations," the ministry said in a notice.

The synthetic aperture radar (SAR) satellite is the fourth military satellite launched under South Korea's plan to deploy five spy satellites by the end of this year to better monitor North Korea and help reduce its reliance on U.S. satellite imagery.

South Korea launched its first spy satellite in December 2023, equipped with electro-optical and infrared sensors capable of capturing detailed images. It launched two more last year with SAR sensors that collect data regardless of weather conditions.

South Korea aims to launch the fifth satellite, which will be equipped with SAR sensors, later this year. Once all five satellites are placed in orbit, the country is expected to be able to monitor North Korea every two hours.

 

[urban mine]

SpaceEye-T delivers ultra-clear satellite imagery | Hanwha

The newly launched SpaceEye-T satellite offers sharper Earth imaging at 25 cm resolution, expanding access to ultra-high-resolution observation.

www.hanwha.com

SpaceEye-T: High-resolution imaging, made more accessible​

Launched on March 15, 2025, SpaceEye-T was developed and is operated by Satrec Initiative — one of South Korea’s leading satellite manufacturers and provider of advanced satellite services — with Hanwha Aerospace as its largest shareholder.

With over 30 years of technical experience and more than 40 satellite missions completed, Satrec Initiative brings end-to-end expertise to every stage of satellite development. Unlike manufacturers that rely heavily on off-the-shelf components, Satrec Initiative designs and manufactures its core satellite systems in-house. This integrated approach enables superior system optimization, reduces complexity and cost, and supports tailored configurations to meet mission-specific needs.

“By designing and manufacturing all key satellite components in-house, we can optimize the system from the ground up — minimizing weight, maximizing performance, and ultimately reducing costs for customers,” said Eundeok Bae, executive vice president at Satrec Initiative. “This integrated approach is one of our key competitive advantages.”

(Eiffel Tower in Paris, France)

SpaceEye-T operates as a low Earth orbit satellite and is equipped with a 25 cm native resolution optical system, currently the most advanced commercially available. It supports high-throughput image delivery, enabling rapid tasking and the transfer of large volumes of data. Within just three hours of launch, SpaceEye-T captured and delivered its first image — a high-resolution view of the Canary Islands — exceeding initial performance expectations.

To make high-resolution EO services more accessible, Satrec Initiative has introduced a satellite leasing model. This approach provides customers with full tasking control, regional exclusivity, and secure data transmission — all without the need to build their own satellite infrastructure. The model lowers barriers to entry for customers while guaranteeing that they maintain operational control and data confidentiality.

(Busy container port in Newark, New Jerey, U.S.)

Looking ahead, Satrec Initiative plans to deploy a satellite constellation of four SpaceEye-T satellites by 2028. This expansion will significantly shorten revisit intervals, enabling daily imaging of the same location — a critical advantage for sectors that require continuous monitoring and up-to-date insights.

“For end users, the revisit cycle is just as important as the resolution of the satellite, and by operating a constellation of four SpaceEye-T satellites, the revisit cycle can be dramatically reduced,” said Eugene D. Kim, executive vice president at Satrec Initiative.

This combination of spatial detail and temporal frequency is especially valuable for applications such as agriculture, environmental monitoring, and national security — where conditions can shift rapidly and decisions depend on real-time intelligence.

(Lanzarote Island, Canary Islands)