Last quote by Heiner Klinkrad
It's largely rubbish from the space race. Of the 16-17,000 objects that we can track from ground stations up there, just about 1,000 are operational spacecraft, all the rest are remnants of past spaceflight activities, and more than one half of these objects are in fact fragments from on-orbit collisions recently, and also fragments from on-orbit explosions.feedback
Feb 20 2014
This page is completely dedicated to what Heiner Klinkrad has to say. All of Heiner Klinkrad’s quotes are organized here by date and topic. The most recent quote attributed to Heiner Klinkrad came from an article called Accidents and asteroids: Addressing the threat: “When you compare the risk of debris against asteroids you can say that the debris risk is more immediate, and the asteroid risk is higher.”.
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Quotes by Heiner Klinkrad
Feb 20 2014
When you compare the risk of debris against asteroids you can say that the debris risk is more immediate, and the asteroid risk is higher.feedback
Feb 20 2014
So the main intention in order to remedy the situation is removing mass from orbit. This you can do by, for instance, mounting motors on the object and firing those motors to put a thing to an immediate re-entry. The other, more subtle thing, is that you artificially increase the drag force on such an object, and then the orbit will be slowly lowering over time, mostly in an uncontrolled fashion.feedback
Nov 08 2013
In total since Sputnik was launched about 15,000 tons have returned from space. Typically between 10 and 40 percent of the initial mass survives such a re-entry. Velocity upon impact is between 200 and 300 hundred kilometres an hour, which is a speed that you can achieve on German motorways with a good-sized car.feedback
Apr 24 2013
A one centimetre object with a typical collision velocity of more than 50,000 kilometres an hour would come up with a kinetic energy upon impact that's equivalent to an exploding hand grenade or a mid-range car running into the satellite with 60 km/h. One can imagine the effect.feedback
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