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Nuri will fly into space this evening (24th). Unlike the previous two launches, which carried mock-ups, this time we will carry a practical satellite for the first time and head into space. Success or failure is decided in 2 seconds to put eight satellites into target orbit.

Reporter Koo Hee Jung will explain the launch process and its meaning in detail.

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When
launch begins, the first stage of the rocket will spew out sparks for 8 seconds, lifting the 923-ton Nuri to an altitude of 1 kilometers.

At an altitude of 125 km, the fairing drops, and at 200 km, the second stage also separates.

Then, 64 minutes and 204 seconds after launch, at 258 km, the first satellite, the next-generation small satellite No. 2, is ejected, that is, put into orbit.

It was Nuri's first actual guest, and it cost 13 billion won to produce.

The late launch of the Nuri is also due to the next-generation small satellite No. 3.

This new generation of small satellites is equipped with a state-of-the-art radar called SAR, or SAR.

[Kim Sun-koo/Researcher, KAIST Satellite Research Institute: The next-generation small satellite No. 550 is mainly aimed at detecting changes in Arctic sea ice. (SAR) is not affected by weather such as light and clouds. The advantage is that you can get footage over the entire time period, regardless of day or night.]

By the way, the power consumption of this SAR radar is 2.240 kW, which is about 2 air conditioners.

To make this much electricity from sunlight, you need to get sunlight 2 hours a day.

You can see the Korean Peninsula here right now. You have to shoot the rocket at sunset just in the middle of the day and night to orbit the twilight of dawn, where you can keep the sun shining for 2 hours.

I made a satellite in 5D.

If you look at it, the solar panels are attached to the body of the satellite, not the wings.

The wing is the antenna of the SAR radar.

If you look a little closer, you can see the sun at any time.

Looking at the back, a stargazer was attached so that the satellite could recognize its position in space.

It took 4 minutes and 24 seconds to put a total of eight satellites, including seven cube satellites from the Astronomical Research Institute and private sectors, into orbit, and expectations are growing to see if it will mark a new milestone in the history of space development in Korea.

(Video Interview: Choi Choi-woong, Video Editing: Lee Sang-min, CG: Lim Chan-hyuk, Choi Jae-young)