Author Topic: FAILURE: Malligyong-1 - Chollima-1 - Sohae - May 30, 2023 2127Z  (Read 30380 times)

Offline Satori

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« Last Edit: 05/31/2023 03:19 am by russianhalo117 »

Offline Steven Pietrobon

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The launch may have failed.

https://www.japantimes.co.jp/news/2023/05/31/national/north-korea-missile-satellite-okinawa-alert/

"Our military is trying to confirm whether it flew normally," the military said in a statement. An unidentified source separately told Yonhap that Seoul was analyzing the possibility that the rocket had exploded in midair or crashed.

Tokyo was also looking into the possibility that the launch may have failed as Prime Minister Fumio Kishida and top officials gathered to be briefed on the launch.

Unidentified government sources told NHK that the launch failed on the western side of the Korean Peninsula over the Yellow Sea without putting any payload into orbit.
« Last Edit: 05/31/2023 03:20 am by russianhalo117 »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Vahe231991

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« Last Edit: 05/31/2023 03:20 am by russianhalo117 »

Offline Vahe231991

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« Last Edit: 05/31/2023 03:21 am by russianhalo117 »

Offline Vahe231991

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The Korean Central News Agency has issued the following report on the failed launch of Malligyong-1:
Quote
KCNA Report

Pyongyang, May 31 (KCNA) -- The Korean Central News Agency (KCNA) made public the following report on Wednesday as regards an accident occurred during the launch of military reconnaissance satellite:

The National Aerospace Development Administration (NADA) of the DPRK launched a military reconnaissance satellite, "Malligyong-1", mounted on a new-type carrier rocket, "Chollima-1", at the Sohae Satellite Launching Ground in Cholsan County of North Phyongan Province at 6:27 on May 31, Juche 112 (2023), as scheduled.

The carrier rocket "Chollima-1" fell to the West Sea of Korea after losing thrust due to the abnormal starting of the second-stage engine after the separation of the first stage during the normal flight.

The NADA spokesperson attributed the failure to the low reliability and stability of the new-type engine system applied to carrier rocket "Chollima-1" and the unstable character of the fuel used, saying that scientists, technicians and experts concerned start discovering concrete causes.

The NADA said that it would thoroughly investigate the serious defects revealed in the satellite launch, take urgent scientific and technological measures to overcome them and conduct the second launch as soon as possible through various part tests.
« Last Edit: 05/31/2023 03:21 am by russianhalo117 »

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Offline Steven Pietrobon

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Images from the first tweet. The vehicle looks to be liquid fuelled. The brown covering could be insulation, perhaps indicating a cryogenic propellant, perhaps liquid oxygen.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.


Offline Satori

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Was the name "Kwangmyongsong 5" ever given by North Korean sources, or was this just an assumption before the satellite was launched?

Offline Magic

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« Last Edit: 05/31/2023 01:13 pm by Magic »

Offline Vahe231991

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Was the name "Kwangmyongsong 5" ever given by North Korean sources, or was this just an assumption before the satellite was launched?
The name Kwangmyongsong 5 was coined by Gunter's Space Page for a speculative satellite launch by the DPRK based on news reports from late 2017:
https://space.skyrocket.de/doc_sdat/kwangmyongsong-5.htm

In any case, the Korean Central News Agency report puts to rest the question of what the first completed DPRK reconnaissance satellite would be christened. It's also interesting to note that the Chollima-1 SLV involved in the launch is named after Chollima, a winged horse from East Asian mythology, and the Chollima Movement engineered by North Korea in the late 1950s to foster rapid economic growth in the country.

Offline Vahe231991

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From the Yonhap News Agency:
Quote
SEOUL, May 31 (Yonhap) -- North Korea's launch of a "space launch vehicle" may have failed due to a technical problem caused by "excessive change of the projectile's route," South Korea's spy agency said Wednesday.

The National Intelligence Service (NIS) delivered this information during a briefing to the parliamentary intelligence committee.

Earlier in the day, Seoul's Joint Chiefs of Staff said it detected the launch from Tongchang-ri on the North's west coast at 6:29 a.m. The projectile then flew over the waters far west of the South's border island of Baengyeong before falling into waters some 200 kilometers west of the southwestern island of Eocheong, it said.

The North confirmed the failure, saying its new "Chollima-1" rocket carrying a military reconnaissance satellite, "Malligyong-1," fell into the sea due to the "abnormal starting of the second-stage engine."

"The NIS report suggested a technical glitch may have occurred because the projectile was set up to fly a route leaning toward the west but had to make an excessive change of route toward the east through lateral motion," Rep. Yoo Sang-bum of the ruling People Power Party told reporters after the closed-door briefing.

The agency also cited the North's premature launch as possibly being connected to the failure.

North Korea shortened the preparation period and fired its projectile from the launch center in Tongchang-ri, which has not been fully constructed, after South Korea successfully launched its homegrown space rocket Nuri last week, according to the NIS.

It also said North Korean leader Kim Jong-un is assumed to have observed the launch in person from a nearby place since vehicles and tents for spectators were identified near the observation deck, located 1.3 km away from the launch site.

The "Chollima-1" rocket is assessed to be a new type of projectile using an engine for intercontinental ballistic missiles, while the "Malligyong-1" is a 1.3 meter-long small low-orbit satellite weighing 300 kilograms that can only conduct basic reconnaissance activities, Yoo said.

If the second stage engine malfunctioned due to an unintentional route change, the possibility that there was some electrical mishap that caused the second stage engine to go out seconds after ignition can't be ruled out.

Offline Jim

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If the second stage engine malfunctioned due to an unintentional route change,

there is not such thing

Offline Jim

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If the second stage engine malfunctioned due to an unintentional route change, the possibility that there was some electrical mishap that caused the second stage engine to go out seconds after ignition can't be ruled out.

not true.  trajectory or guidance issues are not going to cause electrical problems.

Offline JAFO

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If the second stage engine malfunctioned due to an unintentional route change, the possibility that there was some electrical mishap that caused the second stage engine to go out seconds after ignition can't be ruled out.

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Offline Vahe231991

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The Korean Central News Agency has released images of the first launch of the Chollima-1 SLV:
https://twitter.com/JosephHDempsey/status/1664037128542605312

Judging from comparison with the Paektusan-1 and Paektusan-2 used in North Korea's first five satellite launches, the Chollima-1 bears resemblance to the Falcon 9 and Atlas V in the diameter of the first and second stages as well as the size of the payload fairing.

Offline Steven Pietrobon

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Not happy Jan! Looks like Chollima-1 was launched from their new site, which features a horizontal integration building and launcher transporter to the pad. Looks like the first stage has four engines. The lack of frost on the first stage and colour of the exhaust indicates storable N2O4/UDMH type propellant. The vehicle has an interesting colour scheme with the first stage being grey with some white checkers, while the second and third stages are white with some grey checkers. The second and third stages have a smaller diameter than the first stage.

http://www.kcna.kp/en/article/q/b5ad842166109364d3c6ac733d6019a2.kcmsf

Kim Yo Jong, Vice Department Director of C.C., WPK Releases Press Statement

Pyongyang, June 1 (KCNA) -- Kim Yo Jong, vice department director of the Central Committee of the Workers' Party of Korea, issued the following press statement titled " No one can deny the DPRK's sovereign right to satellite launch" on June 1:

The U.S. is openly revealing its inveterate hostility toward the DPRK over its military reconnaissance satellite launch belonging to its right to self-defence.

A spokesperson for the National Security Council of the White House on Wednesday clamored that all countries should denounce the DPRK's military satellite launch, saying there is a danger of unnecessarily escalating tension and destabilizing the regional security as it is an open violation of the UNSC's "resolution".

It is neither surprising nor new, but the U.S. is letting loose a hackneyed gibberish prompted by its brigandish and abnormal thinking.

Who is escalating the tension unnecessarily and destabilizing the regional security situation?

If the DPRK's satellite launch should be particularly censured, the U.S. and all other countries, which have already launched thousands of satellites, should be denounced. This is nothing but sophism of self-contradiction.

The far-fetched logic that only the DPRK should not be allowed to do so according to the UNSC's "resolution" which bans the use of ballistic rocket technology irrespective of its purpose, though other countries are doing so, is clearly a gangster-like and wrong one of seriously violating the DPRK's right to use space and illegally oppressing it.

It is pitiful that the U.S.-style gangster-like logic was stipulated in the UNSC's "resolution".

The U.S. is a group of gangsters who would claim that even if the DPRK launches a satellite in space orbit through balloon, it is illegal and threatening.

It is the "tragedy of the U.S." in the 21st century that it can never give a correct answer with a wrong formula and has not discarded misunderstanding of it.

The U.S. should cool its head heated with confrontation hysteria and clearly look into the UN Charter and the provisions of the space treaty once again before groundlessly denying and pulling up a sovereign state over its satellite launch and its right to space development.

Even at this moment, the U.S. is absorbed in watching every movement of the DPRK with sharp eyes after flying a lot of reconnaissance satellites, high altitude unmanned reconnaissance planes and all other reconnaissance assets in the sky above the Korean Peninsula. It is just like a guilty party filling the suit first and illogical to pull up the DPRK over its military reconnaissance satellite launch.

The U.S. should no longer illusion nor be overconfident itself.

No one vested the U.S. with the authority to take issue with the sovereign right of a specified state.

Taking this opportunity, we would like to once again clearly warn the U.S., which trying to blind and deafen the eyes and ears of the international community with such honeyed dialogue ballad as "door of diplomacy" and "sincere negotiation".

We have no content of dialogue and do not feel the necessity of dialogue with the U.S. and its stooges that oft-repeat the "end of regime" and the "overthrow of system". We will continue our-style way of counteraction in a more offensive attitude so that they should not but realize that they will have nothing to benefit from the extension of the hostile policy toward the DPRK and how dangerous their pursuit of confrontation with the DPRK is.

We are ready to act whatever it may be in defending its sovereign right and interests.

Reading the psychology of the U.S. and its stooges, that are so uneasy about the DPRK's military reconnaissance satellite issue, we confirmed once again that the enemies are most afraid of the DPRK's access to excellent reconnaissance and information means including reconnaissance satellite and, accordingly, we are aware that we should direct greater efforts to developing reconnaissance means.

It is certain that the DPRK's military reconnaissance satellite will be correctly put on space orbit in the near future and start its mission.

We are well aware of the protracted nature of the confrontation with the U.S. and will make all efforts to bolster up war deterrent in an all-inclusive direction, being conscious of the long-term threats and challenges.

If the U.S. and its stooges continue to commit rash acts of infringing upon our sovereign right, we will never remain an onlooker to them. -0-
« Last Edit: 06/01/2023 12:28 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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KCNA videos with previously shown photos of Malligyong 1.




« Last Edit: 06/01/2023 12:46 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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From the videos above, there were some photos that I hadn't seen before as well as one photo that was less cropped. One photo gives a good view of the clean room, showing that it could handle much larger satellites. Anybody wants to translate the propaganda written on the wall?
« Last Edit: 06/01/2023 01:00 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline catdlr

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Not happy Jan! Looks like Chollima-1 was launched from their new site, which features a horizontal integration building and launcher transporter to the pad. Looks like the first stage has four engines. The lack of frost on the first stage and colour of the exhaust indicates storable N2O4/UDMH type propellant. The vehicle has an interesting colour scheme with the first stage being grey with some white checkers, while the second and third stages are white with some grey checkers. The second and third stages have a smaller diameter than the first stage.



Steven looking at the two pictures, the one seems to indicate the transporter Eractor got toasted and maybe destroyed during launch.

In the second picture, I question the Area One cloud compared to the Area Two clouds that appear to be actual exhaust as it's lifting upwards.  Area-One exhaust appears to be clouds that were injected over the water to make it appears to be a larger rocket blast.

The rocket image is heavenly pixelated to analyze the surface, but based on the Gray painted patterns, I'm taking a guess that the floating stage from the South Koreans could be the top of the second stage
Tony De La Rosa, ...I'm no Feline Dealer!! I move mountains.  but I'm better known for "I think it's highly sexual." Japanese to English Translation.

 

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