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20 artificial satellites fall from the sky due to the SpaceX rocket disaster, and investigations begin

After the second stage was successfully separated, it was impossible to launch normally and the payload was left in an abnormally low trajectory
After the second stage was successfully separated, it was impossible to launch normally and the payload was left in an abnormally low trajectory
Last week, SpaceX's rocket launch failed, and 20 Starlink satellites were released early. Currently, investigations by experts are underway, and until the investigation is completed, rockets that have failed to launch will be on standby on the ground.
On 7/11, SpaceX launched a Falcon 9 rocket from Vandenberg Space Force Station in California at 10:35 p.m. (US Eastern Time), 1 day later than originally scheduled. The first stage of the rocket was separated from the second stage carrying the satellite and landed on a drone ship over the Pacific Ocean. However, the second stage failed to burn for the second time due to a liquid oxygen leak, and it was left behind in low Earth orbit. (It is currently unclear whether liquid oxygen leaks are the cause of the launch delay).
The second stage of the rocket was still capable of releasing payloads. However, the satellite fell into an elliptical orbit orbiting the Earth, and the minimum altitude was 84 miles (135 km), which is about half of the height normally operated. The representative of SpaceX stated in a statement on 7/11 that at this altitude, the speed of the satellite decreased due to atmospheric resistance, and it began falling to Earth about 5 km every time it went around the orbit.
“At this level of drag, the maximum thrust we have available is unlikely to be sufficient to successfully raise the satellite. “Therefore, the satellite will re-enter the Earth's atmosphere and completely disappear.”
Space News reported that SpaceX controlled most of the satellites and ordered combustion with maximum thrust known as “Warp 9” as a final attempt to restore altitude. But it wasn't enough to save the satellite.
After that, SpaceWeather.com reported that observations by Harvard University astrophysicist Jonathan McDowell confirmed that all 20 satellites had a violent death on 7/12.
The representative of SpaceX wrote that the spacecraft that re-entered “does not threaten other satellites in orbit or public safety.” According to SpaceWeather.com, there are no reports that the spacecraft has reached the surface so far.
This was the Falcon 9 launch failure since 2016, and it was the biggest single loss of Starlink satellites since 2022/2, when 40 satellites were knocked down from the sky by a geomagnetic storm immediately after the satellite was put into Earth orbit.
According to reports from LiveScience's sister site Space.com, SpaceX is currently investigating what happened under the supervision of the US Federal Aviation Administration (FAA). Until this investigation is completed, SpaceX will not be able to launch Falcon 9 rockets in the future.
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各種ニュースや情報垂れ流してますが、初心者ですのでお手柔らかに🤣
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