![]() Jul 30, 12:42 PM Over 88% of world's population in potential debris footprint: Aerospace Corporation The Aerospace Corporation July 30, 2022 Follow this page for updates: /zmFX2OJG6N ![]() Reentry will be along one of the ground tracks shown here. Our latest prediction for #CZ5B rocket body reentry is: Space Command has confirmed that the rocket booster reentered the atmosphere over the Indian Ocean at approximately 12:45 p.m. ![]() Jul 30, 1:53 PM Rocket makes reentry over Indian Ocean "Doing so is critical to the responsible use of space and to ensure the safety of people here on Earth." "All spacefaring nations should follow established best practices, and do their part to share this type of information in advance to allow reliable predictions of potential debris impact risk, especially for heavy-lift vehicles, like the Long March 5B, which carry a significant risk of loss of life and property," he said in a statement. NASA administrator Bill Nelson commented on the uncontrolled return of the rocket debris on Saturday, saying that China "did not share specific trajectory information as their Long March 5B rocket fell back to Earth." Jul 30, 2:14 PM NASA comments on uncontrolled reentry Latest Tracking and Impact Prediction (TIP) as of 17:25:00Z for CZ-5B (Long March 5B) (53240 / 2022-085B) shows projected re-entry at 16:51:00 (UTC) +/- 1 minutes at approximate latitude 3.4, longitude 113. The rocket will deliver the third and final lab module, Mengtian, to China's Tiangong Space Station. "We'll go through this again in October with Chang Zheng 5B Y4, which is scheduled to launch the next Chinese space station module." "Well, that's a wrap on the Chang Zheng 5B Y3 reentry," astronomer Jonathan McDowell said on Twitter Saturday. Jul 30, 5:18 PM Next Long March 5B rocket to launch in OctoberĪ second Long March 5B rocket is scheduled to be launched later this year, with experts preparing for another uncontrolled entry. The two previous launches of the Long March 5B rocket both had uncontrolled reentries, with rocket debris landing near the west coast of Africa in 2020 and in the Indian Ocean in 2021. And that's the big challenge with all this," he said. "If you're an hour off in predicting when that's going to happen, because it's going at 17,000 miles an hour, you're 17,000 miles off in where it's going to come down. MORE: Debris splashes down in Indian Ocean ![]() "The snag is that the density of the upper atmosphere varies with time - there's actually weather up there - and so that makes it impossible to predict exactly at what point the satellite will have plowed through enough atmosphere to melt and break up and finally reenter," astronomer Jonathan McDowell said in a Twitter conversation on the uncontrolled reentry of the rocket hosted by the Aerospace Corporation this week. The exact point where the rocket booster would reenter the Earth's atmosphere couldn't be determined until within hours of reentry, experts said. PHOTO: The rocket carrying China's second module for its Tiangong space station lifts off from Wenchang spaceport in southern China, on July 24, 2022.
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