nanog mailing list archives

Re: Fiber cut - response in seconds?


From: "Warren Bailey" <wbailey () gci com>
Date: Tue, 2 Jun 2009 14:54:28 -0800

I do 250 mbits on 21 transponders :)

----- Original Message -----
From: John van Oppen <john () vanoppen com>
To: Chris Adams <cmadams () hiwaay net>; Deepak Jain <deepak () ai net>
Cc: nanog () nanog org <nanog () nanog org>
Sent: Tue Jun 02 14:51:59 2009
Subject: RE: Fiber cut - response in seconds?

Ok, while this is off-topic, let's just point people to Wikipedia:

Other satellites (which are NOT in the same position at all times from
the prospective of a spot on earth):

http://en.wikipedia.org/wiki/Geosynchronous_orbit 


TV, and other fixed positioned (relative to the earth are
geostationary):

http://en.wikipedia.org/wiki/Geostationary_orbit 



perhaps further comments can go to the discussion pages on Wikipedia
since I would wager a very small number of us push any serious number of
bits via satellite.


John van Oppen
Spectrum Networks LLC
Direct: 206.973.8302
Main: 206.973.8300
Website: http://spectrumnetworks.us


-----Original Message-----
From: Chris Adams [mailto:cmadams () hiwaay net] 
Sent: Tuesday, June 02, 2009 3:36 PM
To: Deepak Jain
Cc: nanog () nanog org
Subject: Re: Fiber cut - response in seconds?

Once upon a time, Deepak Jain <deepak () ai net> said:
I promise you that that is not the case for all applications.
Geosynchronous satellites can be anywhere. For the applications you
are considering (communications mostly), equatorial orbit is the most
advantageous. 

Geosynchronous are only over a particular longitude.  They move up and
down in latitude, so it isn't over a given point except twice per day
(or only once at the extremes).

-- 
Chris Adams <cmadams () hiwaay net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.



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