Author Topic: FAILURE: Malligyong-1 - Chollima-1 - Sohae - May 30, 2023 2127Z  (Read 30125 times)

Offline jcm

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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.

Depends how loose the wires are ? :-)
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I was surprised by the appearance of the new launch vehicle. I'd assumed it was simply another Unha iteration/derivative but it's completely different.

Offline Vahe231991

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Offline Steven Pietrobon

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Looks like they recovered the second stage. Interestingly, the interstage between the first and second stage is still attached along with the top part of the first stage. Perhaps there was some kind of separation failure.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Copyrighted, so no text included.  Great site BTW...

https://www.38north.org/2023/06/resolution-matters-assessing-north-koreas-spy-satellite/

Resolution Matters: Assessing North Korea’s Spy Satellite

Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

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Now claiming that they recovered the satellite?

https://www.yna.co.kr/view/AKR20230626068000504

Military salvages suspected North Korean 'reconnaissance satellite'... Is the level of satellite technology revealed?

Delivery time2023-06-26 11:30

     عربي日本語中文

beta
North Korea's 'space launch vehicle' 2nd stage salvaged from the West Sea last night
North Korea's 'space launch vehicle' 2nd stage salvaged from the West Sea last night

(Seoul = Yonhap News) The wreckage of the Chollima Type 1 space launch vehicle launched by North Korea using ballistic missile technology was recovered 15 days after it fell into the West Sea. The photo shows the remains of a projectile released by the Joint Chiefs of Staff. 2023.6.16 [Provided by the Joint Chiefs of Staff. Resale and DB prohibited] [email protected]

(Seoul = Yonhap News) Reporter Park Soo-yoon = It is known that the military authorities recently salvaged an object believed to be a military reconnaissance satellite that North Korea failed to mount on a space launch vehicle at the end of last month.

According to a military source on the 26th, the Navy rescued an object that appeared to be a satellite 'Malligyeong-1' mounted on a space launch vehicle 'Chollima Type 1' launched by North Korea using ballistic missile technology on the 31st of last month in the high seas of the West Sea last week.

A military source said, "I understand that various wreckage has been collected from the site," and "the salvage operation and related activities are continuing."

The military moved the estimated satellite object to the Defense Science Research Institute (ADD) in Daejeon and began analysis.

If this object is hit by a satellite and is relatively intact, it seems that the level of North Korea's reconnaissance satellite technology can be identified in detail.

A space launch vehicle launched by North Korea on the 31st of last month from Dongchang-ri, North Pyongan Province crashed into the West Sea after the first and second stages separated, and in the process, about 180 pieces of debris were captured by an Aegis destroyer and Air Force radar.
Wreckage of space launch vehicle 'Chollima Type 1'

[Photographed by Yonhap News. Resale and DB prohibited]
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Military authorities salvaged the second-stage fuselage on the night of the 15th, but could not find the mounted satellite.

The South Korean and U.S. military authorities are jointly analyzing the two-stage fuselage and objects suspected of being reconnaissance satellites.

On the Korean side, experts from the Ministry of National Defense, Joint Chiefs of Staff, Navy, and ADD are participating in the analysis, and on the US side, personnel from various organizations such as the Defense Intelligence Agency (DIA) under the Ministry of National Defense are participating in the analysis.

Offline Vahe231991

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Now claiming that they recovered the satellite?

https://www.yna.co.kr/view/AKR20230626068000504

Military salvages suspected North Korean 'reconnaissance satellite'... Is the level of satellite technology revealed?

Delivery time2023-06-26 11:30

     عربي日本語中文

beta
North Korea's 'space launch vehicle' 2nd stage salvaged from the West Sea last night
North Korea's 'space launch vehicle' 2nd stage salvaged from the West Sea last night

(Seoul = Yonhap News) The wreckage of the Chollima Type 1 space launch vehicle launched by North Korea using ballistic missile technology was recovered 15 days after it fell into the West Sea. The photo shows the remains of a projectile released by the Joint Chiefs of Staff. 2023.6.16 [Provided by the Joint Chiefs of Staff. Resale and DB prohibited] [email protected]

(Seoul = Yonhap News) Reporter Park Soo-yoon = It is known that the military authorities recently salvaged an object believed to be a military reconnaissance satellite that North Korea failed to mount on a space launch vehicle at the end of last month.

According to a military source on the 26th, the Navy rescued an object that appeared to be a satellite 'Malligyeong-1' mounted on a space launch vehicle 'Chollima Type 1' launched by North Korea using ballistic missile technology on the 31st of last month in the high seas of the West Sea last week.

A military source said, "I understand that various wreckage has been collected from the site," and "the salvage operation and related activities are continuing."

The military moved the estimated satellite object to the Defense Science Research Institute (ADD) in Daejeon and began analysis.

If this object is hit by a satellite and is relatively intact, it seems that the level of North Korea's reconnaissance satellite technology can be identified in detail.

A space launch vehicle launched by North Korea on the 31st of last month from Dongchang-ri, North Pyongan Province crashed into the West Sea after the first and second stages separated, and in the process, about 180 pieces of debris were captured by an Aegis destroyer and Air Force radar.
Wreckage of space launch vehicle 'Chollima Type 1'

[Photographed by Yonhap News. Resale and DB prohibited]
ADVERTISEMENT

Military authorities salvaged the second-stage fuselage on the night of the 15th, but could not find the mounted satellite.

The South Korean and U.S. military authorities are jointly analyzing the two-stage fuselage and objects suspected of being reconnaissance satellites.

On the Korean side, experts from the Ministry of National Defense, Joint Chiefs of Staff, Navy, and ADD are participating in the analysis, and on the US side, personnel from various organizations such as the Defense Intelligence Agency (DIA) under the Ministry of National Defense are participating in the analysis.
The graphic image in this article estimates the height of the Chollima-1 at 131 feet (40 meters), making it taller than the Paektusan/Unha SLV family.

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Offline Vahe231991

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Offline Steven Pietrobon

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Here's a link to the article with the relevant paragraph.

https://en.yna.co.kr/view/AEN20230705001752325?input=tw

"South Korea has retrieved a North Korean spy satellite wreckage and concluded it has "no military utility," Seoul's military said Wednesday, ending a 36-day operation to salvage the sunken debris from a failed North Korean space rocket launch in late May."
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

 

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