Pieces of orbiting space junk set for very close pass

Two large pieces of space debris almost collided with Earth- P.G.R

Some other space watchers expected a safer margin and a lower collision-risk.

The model that shows a more than 10 percent chance of the two space objects colliding has been developed by LeoLabs, a company that looks into the risks and opportunities in low earth orbit (LEO) where most satellites are present. If enough debris filled Earth's orbit, there would be great danger to active satellites and even rocket launches.

Earlier this year, two old satellites were likely to collide as they were to pass within 15 to 30 metres of each other, with a one in 100 chance of collision.

"We're not yet in a position where we can actively remove any debris like this". And because of the altitude of about 1,000 kilometres, this stuff isn't going to reenter within a matter of weeks or months. "Some of it is likely to be up there for quite some time", Gorman added.

Humanity has also twice spawned big debris clouds on objective - during anti-satellite tests in 2007 and 2019 conducted by China and India, respectively. Fortunately, the space objects are 40 feet away from each other, giving a small reassurance to astronomers against the risk of additional debris.

This week, the European Space Agency released its annual State of the Space Environment report, which highlighted the ongoing problem of fragmentation events. It is being told that the combined mass of these two objects was more than 2.8 MT. The satellite is a Russian Parus military satellite launched on February 22, 1989.


So what is this 'junk?' It's a retired navigation satellite that was launched in 1989, and the ChangZheng-4C Y4 third stage rocket that was sent up in 2009.

As per the experts, the event is a reminder that more such collision will eventually result in Kessler Syndrome predicted by former NASA astrophysicist Donald Kessler in 1978. Eventually, a feedback loop could make near-Earth space inaccessible.

While there are efforts underway to clean up space debris, they are still a ways off.

"We're not yet at that Kessler Syndrome point".

In September, the United Kingdom government awarded seven companies a stake in excess of £ 1 million to tackle space debris. "To continue benefiting from the science, technology and data that operating in space brings, it is vital that we achieve better compliance with existing space debris mitigation guidelines in spacecraft design and operations".

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