Social Media Sidebar

Announcement

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

People say we're running out of energy. That's only true if we stick with these old 19th century technologies. We are awash in energy from sunlight.

 

Ray Kurzweil

 

Germany to tackle space junk with GESTRA project

RATE THIS! +32
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

Comments

Author: Guest
Posted: 2015-07-08
+0
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 Hardware on 2017-10-18 00:24:23
    Puerto Rico hurricane shows islands must have renewable.....read more
    Posted in Science on 2017-10-18 00:13:22
    China is betting big on AI..read more
    Posted in Online on 2017-10-18 00:02:28
    Has your browser been hijacked to mine cryptocurrency?..read more
    Posted in Science on 2017-10-16 17:11:06
    Nasa carbon space observatory 'watches Earth breathe'..read more
    Posted in Business on 2017-10-16 17:03:35
    Alphabet is training law enforcement on how to handle.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Scientists probe Neptune's depths to reveal secrets of icy.....read more
    Posted by AlexMuller
    New terahertz imaging approach could speed up skin cancer.....read more
    Posted by AlexMuller
    Rebutting the claim that antidepressants do not work..read more
    Posted by AlexMuller
    Artificial neural networks decode brain activity during.....read more
    Posted by AlexMuller
    Four Earth-sized planets detected orbiting the nearest.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me