Undertoad Thursday Jul 17 12:33 PM
7/17/2003: Earth's artificial satellites
OnyxCougar Thursday Jul 17 12:51 PM
What isn't shown are the thousands of pieces of "space debris". We've managed to litter not only our planet, but the space surrounding it.
Conesus Thursday Jul 17 01:22 PM
black = secret military satellites
dave Thursday Jul 17 01:26 PM
The background is actually white.
Conesus Thursday Jul 17 02:58 PM
one earth Thursday Jul 17 04:03 PM
Who knew that Georgia Tech could do that?
xoxoxoBruce Thursday Jul 17 05:40 PM
Dave, look again with your good eye.
dave Thursday Jul 17 05:54 PM
perth Thursday Jul 17 05:56 PM
xoxoxoBruce Thursday Jul 17 06:14 PM
Since the gif background is black and the Cellar background is grey, yes, I missed it.
arz Thursday Jul 17 06:24 PM
Yes, the two most common are LEO (low earth orbit) and GEO (geosynchronous earth orbit).
xoxoxoBruce Thursday Jul 17 06:39 PM
dave Thursday Jul 17 06:52 PM
(Secret military satellites are represented by black dots. The joke was the implication that there are so many of them represented in that image that you can't see the background.)
gossard187 Thursday Jul 17 06:53 PM
The fun one is called Molniya. Its tilted like 60 degrees from the equator and elliptical. Kinda difficult to launch geo from latitudes far from the equator (takes too much fuel). That and another problem with Geostationary is even at that distance from the earth, the poles look real flattened and nothing very north or south gets a good signal (alot of Russia, Sweden, Finland, etc).
gossard187 Thursday Jul 17 06:55 PM
oh and if you dont know much about the GEO, the ring is a highly sought after place to be. so an international body (forget the name now) allocates the ring into sections. the sections are then taken by a different governing body (like the FCC) and their only rule is don't interfere with the next section over. So you can put as many satellites in that space as you want and use frequency bands as allocated.
Undertoad Thursday Jul 17 07:32 PM
They'll all have to be realigned when the big asteroid hits the Earth.
Griff Thursday Jul 17 08:09 PM
Those sats will just be bugs in the teeth of The Big One.
xoxoxoBruce Thursday Jul 17 08:59 PM
novice Friday Jul 18 12:40 AM
What about 'good one' UT.
GlassJaw Friday Jul 18 12:40 AM
I thought this looked familiar...
This reminded me of J-track 3D which allows you to roll around the planet and see where specific satellites reside, including the ISS, in real time.
xoxoxoBruce Friday Jul 18 06:17 PM
I should have read the whole post first but since I'd seen the original on APotD, I just skimmed it and didn't realize it was a value added post....until I'd made a fool of myself, that is.
Annebonannie Thursday Jul 24 07:04 PM
"georgia satellites", c'mon guys!
xoxoxoBruce Thursday Jul 24 09:56 PM
Welcome to the Cellar Anne. Hey, as least they're not indicated.
MaggieL Friday Jul 25 11:01 PM
AMSAT OSCAR 40 was supposed to be in a Molniya-type orbit too, but the rocket motor intended to steepen the inclination failed, leaving it in basically a geosynchronous transfer orbit at about +- 5 degrees inclination. There's about half a dozen operating amateur radio satellites these days.
xoxoxoBruce Saturday Jul 26 01:24 AM
Maggie, why did you put that gold man in space?
MaggieL Saturday Jul 26 03:09 PM
Or perhaps like http://mirror.wolffelaar.nl/zardalu.sytes.net/
xoxoxoBruce Saturday Jul 26 11:30 PM
OK, as long as it's not male bashing.