Homepage - RF Cafe
Webmaster: Kirt Blattenberger | KB3UON | Sitemap | ©1996-2014
Menu below is just a small sample of what is here!
 
Custom Search
More than 10,000 searchable pages indexed.
•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Space Debris Collector Robot
Video for Engineers

Space Debris Collector Robot - RF Cafe Video for EngineersSpace junk is becoming more of a problem on a daily basis. It is not necessarily that a new satellite or part of its launch system is added each day, it's that there is so much junk floating around up there now that collisions between existing components are continually creating new junk. In fact, if you look at the chart to the right that appeared in the April 2012 edition of Scientific American ("Space Age Wasteland: Debris in Orbit Is Here to Stay"), you will see that the multiplication effect will continue to produce more space junk even if all new launches are halted immediately (the lower line). The upper line extrapolates growth of space junk at the current rate of satellite launches. Of course the dots shown are not in scale to the volume of space represented, but we know empirically that collisions occur frequently.

Space Age Wasteland: Debris in Orbit Is Here to Stay - RF CafeThe North American Aerospace Defense Command (NORAD) puts a lot of work into tracking space debris in order to predict reentry hazards, orbital collisions, and to be able to differentiate between benign projectiles and hostile military projectiles. We hear a couple times a year about the need to adjust the orbit of the International Space Station in order to avoid potential collisions with orbiting space junk. Back when the U.S. wasn't a 3rd-world nation from the manned space program perspective, the Shuttle often changed orbit to avoid man-made objects. With an orbital speed of around 18,000 mph, even a small chunk of busted former antenna or attitude control nozzle could rip right through the spacecraft.

Space debris that is just left over from abandoned satellites and their launch systems is bad enough, but a couple years ago the Chinese created thousands of chunks of junk when they tested a space weapon on their own Fengyun-1C satellite. In 2009, a Russian accidently (ostensibly) collided with an Iridium satellite and created a pile of new debris. According to a story by Discover, China is responsible for 40% of all space junk even though they have been relative newcomers to the realm. The U.S. produced 27.5% and Russia produced 25.5%.

To help mitigate the problem, engineers and scientists at the Swiss Space Center at EPFL recently launched the "CleanSpace One" project. The aim is to design and build a satellite that will chase, grab and destroy space debris, primarily one of the first Swiss satellites, Swisscube-1 or TIsat-1. The plan is to hurl the objects into a much lower orbit so that it will quickly degrade and reenter the Earth's atmosphere and burn up. It will be interesting to see what they come up with for a propulsion system that is sufficient to service many objects before having to commit cosmological suicide by intentionally subjecting itself to a fiery end in the sky. We'll know when CleanSpace One is operational by a marked increase the frequency of news stories on Bubbas reporting UFO sightings.


Space Debris Collector Robot



Posted  4/13/2012
A Disruptive Web Presence

Custom Search
Over 10,000 pages indexed! (none duped or pirated)

Read About RF Cafe
Webmaster: Kirt Blattenberger
    KB3UON

RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

RF & EE Symbols Word
RF Stencils for Visio

Product & Service Directory
Personally Selected Manufacturers
RF Cafe T-Shirts & Mugs

RF Cafe Software

Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel
Your RF Cafe Progenitor & Webmaster
Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an
                                 engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem! (Seize the Day!)

5CCG (5th MOB): My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website