Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Why do we not know exactly what happened in a nearby space collision

Why do we not know exactly what happened in a nearby space collision



LeoLabs, which uses its own ground-based radars to track spaceborne objects, puts collisions at 10% or higher. That’s high, but not uncommon, LeoLabs CEO Daniel Ceperley told CNN Business on Thursday.

But the U.S. military, which uses data from the world’s largest network of radars and telescopes, said the space traffic control team saw “almost zero percent collision probability.”

In response, Ceperley of LeoLabs said in a statement Friday morning: “It is clear that we have respect for [US military’s] 18th Space Control Squadron and their estimates. No one argues that these things are close to each other. “

Meanwhile, Moriba Jah, an astrodynamicist at the University of Texas at Austin who has long been trying to raise public awareness about the abundance of waste in the Earth̵

7;s orbit that continues to be in danger of colliding, said that test is the latest evidence only that the world needs an effort in international cooperation to track space traffic.

His data, a compilation of all publicly available real-time space traffic information, shows dozens of potential collisions occurring at any given moment. Jah suggested that Soviet satellites and discarded rocket boosters were expected to arrive within 72 meters of each. However, he could not say for sure if a collision was even “likely.”

Space objects are monitored by telescopes and radar operated by governments and private companies. But all those organizations around the world are hesitant to share their data with each other. So, when there is a chance that two objects in space may collide, experts have a very difficult time hashing out exactly how high the risks are. LeoLabs does not share its data publicly.

Ceperley told CNN Business on Thursday that the company decided to raise public awareness about this particular event because the two objects are both large, and because they are in an orbit area that is still clean compared to nearby orbits. The company is also trying to raise more general awareness about the lip problem, he said, to encourage the private sector to develop its cleaning method.

“Several times a week we see dead satellites come within 100 meters of each other, moving at extreme speeds,” Ceperley said.

What happened on Thursday

The Soviet satellite, launched into space in 1989 and used for navigation, weighs nearly 2,000 pounds and is 55 feet long, according to Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics. The rocket booster, part of a Long Long March vehicle launch likely launched in 2009, is about 20 feet long. None of the items are still in use.

If a rocket and a satellite collide, this will be the first time in more than a decade that two objects have collided spontaneously in space – a situation that space experts expect space to avoid.

The last collision, in 2009, saw a Russian Russian Russian military satellite killed on an active communications satellite operated by US-based telecommunications firm Iridium. That event created a huge cloud of debris, most of which was too small to track from the ground. And destruction is still in orbit, indicating a constant threat to nearby satellites.

There are also hundreds of thousands – possibly millions of objects orbiting uncontrolled orbits, including small pieces of debris, spending rocket boosters, dead satellites and detritus from missile demonstrations against military satellites . Garbage is highly concentrated in areas of orbit closest to the Earth’s surface. And, while it does not pose a serious risk to people on earth, it does threaten hoards of active satellites that provide all kinds of services, including weather monitoring, Earth climate analysis, and providing telecom services. The debris also threatens the International Space Station, where astronauts have been stationed since 2000, and where its own orbit needs to be adjusted three times this year due to space debris.
Space is getting too crowded, warns the CEO of Rocket Lab

McDowell explained on Twitter that a new collision would be “very bad.” The Soviet satellite and Chinese rocket booster could lead to a 10% to 20% increase in the number of debris in space, and each new piece of debris reinforces the likelihood that more collisions will occur.

It can still set off a destructive chain reaction, leaving a waste space with an inaccessible waste field that brings new rocket launches and space exploration to a grinding stop.

Part of the problem is that the outer galaxy remains largely untidy. The last widely agreed international agreement governing the use of the galaxy has not been updated for five decades, most of which left the galaxy industry to the police themselves.

The increasing popularity of megaconstellations – played by the constellation of the Starlink internet built by Elon Musk’s SpaceX – has sparked a new wave of discussion about the dangers of orbital congestion. Rocket Lab CEO Peter Beck told CNN Business last month that growing space congestion makes it harder for his company’s rockets to find a clear orbit path to deliver new satellites.

Source link