Social Media Sidebar


Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

When seen through the lens of technology, few resources are truly scarce; they’re mainly inaccessible. 


Peter Diamandis

Germany to tackle space junk with GESTRA project

Posted in Science on 7th Jul, 2015 11:58 PM by AlexMuller

The GESTRA project is designed to monitor and track objects in low-Earth orbit. Scientists estimate there are 20,000 particles of space junk measuring up at over 10 cm (4 in) in diameter currently hurtling around the earth at an average velocity of 25,000 km/h (15,500 mph), threatening to damage or destroy orbiting satellites.


To combat the problem, the German Government has granted the German Aerospace Center (DLR) €25 million to create a system to track space junk as it orbits the earth and the Fraunhofer Institute for High Frequency Physics and Radar Techniques (FHR) has been tasked with creating the new system's radar component.

The Institute will build on experience working with its existing Tracking and Imaging Radar Systems (TIRA) but Dr. Andreas Brenner, who is deputy director at FHR, says the new (German Experimental Space Surveillance and Tracking Radar (GESTRA) system is far more sophisticated.
"TIRA collects high-definition images of individual objects using a mechanically controlled, movable antenna," says Brenner. "The novel feature of the new GESTRA system is that its antenna is electronically controlled, and can therefore be reoriented even faster because it has no heavy moving parts. Unlike TIRA, it is capable of observing a very large number of objects simultaneously while still supplying data of high accuracy and sensitivity."
The GESTRA system will be made up of retractable transmitters and receivers consisting of phase array antennae, each of which is made up of multiple individual antenna elements, working at a frequency of 1.3 GHz. The array antennae are fitted with high-performance processors that pick up satellites and space debris in a number of different directions at once.
This allows the system to cover a large portion of the sky, although GESTRA can also use a narrower beam to track individual objects. The transmitters and receivers are also fully retractable, allowing them to be easily transported inside their containers, which measure up at 4 x 4 x 16 meters (14 x 14 x 52 ft). Researchers are hoping to use the system as an alarm, protecting satellites orbiting between 300 and 3000 km (186 to 1,861 mi) from earth, as well as watching for bits of debris that leave their orbit and enter our atmosphere.

Tags: spaceorbitspace debrisspace junkGESTRAsatellite

Read original article » Back to category


Author: Guest
Posted: 2015-07-08
There is a number of projects that aim to tackle space junk that is a growing hazard in earth's orbit - one should work out, could be GESTRA Reply


Recent headlines

  • Posted in Medicine on 2018-03-17 19:49:27
    A simple artificial heart could permanently replace more
    Posted in Software on 2018-03-16 11:03:28
    60.3% of harmful Android apps in 2017 detected more
    Posted in Hardware on 2018-03-16 11:00:28
    Big harpoon is 'solution to space junk' more
    Posted in Science on 2018-03-16 10:58:40
    Russia will beat NASA to mars and find water on the moon, more
    Posted in Business on 2018-03-14 07:02:30
    X Prize announces $10 million competition to more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs, more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target more

Recent Blog Posts

  • Posted by AlexMuller
    Martian landscapes formed from sand 'levitating' on a more
    Posted by AlexMuller
    Scientists detect comets outside our solar more
    Posted by AlexMuller
    Advanced artificial limbs mapped in the more
    Posted by AlexMuller
    Bacteria have a sense of more
    Posted by AlexMuller
    Recurrent brain cancer: New hope with phase 1 clinical more

Login to your Account

Login to your PlanetTech Account here

Remember me

Create a New Account

You just need username and password

The following errors occured:
Verify password:
Remember me