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I found on wikipedia web site that nimiq 1 (sat 91) that the expected life time of the satellite is 12 years and it was launch in 1999. What will happen when nimiq 1 will shut down? Do they have a spare satellite?

http://en.wikipedia.org/wiki/Nimiq_4
 

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The lifetime of Nimiq 1 was extended by placing a second satellite to share the slot for the past several years. IIRC, Nimiq 2 is currently at 91 with 16 TPs operating and Nimiq 1 has another 16 TPs. In theory, Nimiq 1 could operate much longer at half load but a new satellite will provide a stronger signal and more capabilities.
 

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The life of the satellite will depend on how much liquid fuel it has left that is used to operate its' rocket engines.
 

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That is one factor. There are others, such as deterioration of transponders and solar panels. There are many satellites in orbit that still have fuel but are out of service for other reasons. Barring other failures, usable lifetime is usually determined by the transponders, which gradually lose power over time.
 

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The lifetime of Nimiq 1 was extended by placing a second satellite to share the slot for the past several years. IIRC, Nimiq 2 is currently at 91 with 16 TPs operating and Nimiq 1 has another 16 TPs. In theory, Nimiq 1 could operate much longer at half load but a new satellite will provide a stronger signal and more capabilities.
One catch?

Back when N2 was launched and it was placed at 91. N1 theen moved to 82, Then with N2 having a problem(don't recall what it was) N1 was once again moved back to 91 and N2 was moved to 82.


Now with all that moving and the age, and even though N1 & 2 are now at 91 each having 16TRS working all that moving around and with the age of N1 has that caused "premature" aging of not only N1 as welll as N2(with its orginal problems) has that effected the life expectence of both N1 & N2?
 

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IIRC, N1 was never moved. N2 was moved to 82 and back to 91. That probably depleted its fuel somewhat but it hasn't been deployed that long either. Moving satellites is not like driving a car. There is no friction in geosynchronous orbit so it just takes a little fuel to get it moving, a long wait with no fuel used and then a little fuel to stop.
 

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MCIBUS is correct. Nimiq 1 and 2 swapped postitions after a partial power failure with the power supply on Nimiq 2. And if I recall correctly the satellite was moved back rather quickly to 91 degrees. The faster a satellite moves the more fuel will be spent to start and stop it.
 

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You could be right. I thought N1 was scheduled to be moved but never was due to the partial failure of N2. At any rate, moving them has an impact on fuel the fuel supply bit it's not as great as it seems at first glance.
 

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Well in either case by a year or so this won't be a problem as N6 Hopefully will be up and operating baring any problems :eek: :(

And if a problem does accur before N6(in operation) I'm asuming another sat(used Dish or Direct)could be used temp until then. Not sure if its possible to use 3 sats in one spot though? :confused:
 

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Sure they can. In Europe they have several in one orbital slot, using more than 32 transponders per slot too.
 

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footprint?

Does anyone know anything more about Nimiq 6?

As a "southern province" subscriber, I remember well the problems down here when N4 took over the 82W slot a year or two back. I'm close enough to Canada that I still get 82W signal (tho down a little cf 91W), but most people down here lost their 82W signals because the footprint was designed only to hit Canada, not CONUS plus some of Canada.

Will N6 also have its footprint focused only on Canada?

I think the vast majority of southern subs switched to Shaw because they lost the HD channels from 82W - but I don't want to lose my 91W channels!
 

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I also believe that the new Nimiq 6 will focus the beam on Canada and the 91 signals south of the border will disappear.
 

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Nimiq-2 did take over for Nimiq-1 at 91*W back when it was lanched in 2002.

Then the nightmare for bell began.... Less then 2 months after launch. The short cucuit was believed caused by a missing washer.

Nimiq 2, launched on December 29, 2002 on a Proton Breeze M rocket, includes 2 K-band transponders. Nimiq 2 provides additional bandwidth for HDTV and interactive television applications. On February 20, 2003, Nimiq 2 experienced a partial power failure and as such can only power 26 of its 32 Ku-band transponders.


Nimiq 2 Power Failure 02-20-2003

Bell ExpressVu's new Nimiq 2 apparently had a power failure knocking out service to approximately 16 networks.
 

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I also believe that the new Nimiq 6 will focus the beam on Canada and the 91 signals south of the border will disappear.
Being in a region in New England that is further north than the lowest Canadian latitude, I'll hold out hope that I'll be OK - as I am with N4. Bummer for all the other southern subs, tho. Shaw Direct will gladly pick them up!

Well, the link above says the launch will be mid-2012, so I guess by the time the launch actually happens, I've got at least 2 years before I have to worry what I do with my "new" 9241 receiver! (Hopefully it lasts that long, unlike the SD-DVR that preceded it)
 

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I've saw in another forum that N6 will have the same antenna configuration as N5 so that Bell could sell it to DirecTV or Dishnetwork if they decide to get out of the satellite business before the end of N6's lifetime.

If N6 is placed in orbit with the same attitude as N4, the footprint will be similar to N4's. Southern subs were advised to purchase no more Bell hardware. But who would want to anyways since HD is where it's at.
 

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people who are saying N6 wont reach the US did you read something that said that?
Nothing would probably ever be officially posted about this but when they lanunched Nimiq4 at the 82W location the footprint was altered to focus more on Canada, and it would only make perfect sense that the same will be done when Nimiq6 is setup at 91W. Just FYI the current 82W footprint still covers most of the Northern US.
 
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