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SAI COMPUTER TYPING INSTITUTE, GULABARA CHHINDWARA [M.P.] CPCT ADMISSION OPEN [संचालक-लकी श्रीवात्री] MOB.-9098909565

created Yesterday, 04:41 by lovelesh shrivatri


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532 words
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The Kessler Syndrome describes and warns of a cascade of orbital debris that could potentially hinder the space ambitions and activities down the road. The original paper predictedthat satellite collisions would become a source of space junk by the year two thousand. This will not change the humanity changed how it lofted payloads to orbit. But a timeline is notessential to the core idea. It was never intended to mean that the cascading would occur over a period of time as short as days or months. Nor was it a prediction that the currentenvironment was above some critical threshold. The Kessler Syndrome was meant to describe the phenomenon that random collisions between objects large enough to catalogue wouldproduce a hazard to spacecraft from small debris that is greater than the natural meteoroid environment. In addition because the random collision frequency is non linear with debrisaccumulation rates the phenomenon will eventually become the most important long term source of debris. Gabbard used the term when talking to a reporter shortly after the studycame out. The syndrome then worked its way into the public consciousness. It became part of the storyline in some science fiction and a three word summary describing orbital debrisissues. Earth orbit is getting more and more crowded as the years go by. Humanity has launched more than twelve thousand satellites since the dawn of the space age. Out of thesearound seven thousand remain in orbit today but only about four thousand are still operational. That means there are nearly three thousand defunct spacecraft zooming around Earth attremendous speeds. Other big dangerous pieces of debris like upper stage rocket bodies are there to give them company. At such tremendous speeds even a tiny shard of debris can doserious damage to a spacecraft. And there are huge numbers of such fragmentary bullets zipping around our planet. According to the estimates Earth orbit harbours at least thirty sixthousand debris objects that are more than four inches wide. These objects pose more than just a hypothetical threat. Many of the smaller pieces of space junk were spawned by theexplosion of spent rocket bodies in orbit. But others were more actively emplaced. Spacecraft have also collided with each other on orbit. The space community is taking the orbitaldebris threat increasingly seriously these days. Multiple satellite mega constellations are in the works. This will make space traffic management and space junk mitigation more pressingissues than they have ever been. In addition launch and satellite construction costs continue to fall. It allows allowing more and more people to get satellites up and operate them. Thisincludes folks with very little experience in the field. This opening of the final frontier is generally a good thing most experts say. But it further highlights the need for forethought andresponsible action when it comes to satellite operation. One recommendation is that all satellites operating above two hundred and fifty miles be equipped with propulsion systemsallowing them to manoeuvre away from possible collisions. Drawing the line there makes sense for multiple reasons. It is also recommended that satellite designers consider buildingencryption systems into the command systems of their craft. Operators who control satellites in low Earth orbit should dispose of in atmosphere

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