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Observers Puzzled by Mysterious 'Empty Trash Bag' Orbiting Earth
by Staff Writers
London, UK (Sputnik) Jan 31, 2019

illustration only

A Hawaiian telescope, part of NASA's Asteroid Terrestrial-Impact Last Alert System (ATLAS), has spotted a satellite orbiting the Earth at an average distance of 262,000 kilometres. Sky watchers from Northolt Branch Observatories concluded that it might be a left-over from a rocket launch, but cannot put their finger on which one.

Northolt Branch Observatories has posted a video that captured a so-called "empty trash bag object" orbiting Earth with an unusual, retrograde trajectory. What distinguishes this piece, named, A10bMLz from objects previously found is its distant orbit.

According to the observatory, the object was first spotted on 25 January by ATLAS-HKO - a telescope located in Hawaii (at Haleakala) as part of the NASA-funded early-warning asteroid alert system.

The "empty trash bag object" is orbiting at an average distance of 262,000 km from Earth and has a highly elliptical orbit. The observers also point out that it has "an extremely high area-to-mass ratio" of 35 m2/kg. This is a sign that the object is extremely light and has a mass of less than 1 kg.

Because of this, pressure from solar radiation changes its orbit erratically, so it is hard to forecast its future trajectory. However, the researchers predict that the "trash bag" could enter Earth's atmosphere within a few months.

At the same time, the object has a diameter of several metres. The sky watchers suggest that it is probably metallic foil from a rocket that was left after some launch. However, the scientists are unable to say when A10bMLz's space journey began.

Source: Sputnik News

Related Links
Asteroid Terrestrial-impact Last Alert System
Space Technology News - Applications and Research

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Since the 1950s, humanity has been firing rockets and satellites into orbit around the Earth, but most of this is now "space junk". Dr Holger Krag, the head of the European Space Agency's space debris office, spoke to Sputnik about the problem. The first satellite to orbit the planet - Sputnik 1 - may have burned up and come back to Earth but thousands of other pieces of detritus remain circling the planet, including Vanguard I, which was launched by the US Navy in 1958. "There are around 20 ... read more

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