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Guest Message by DevFuse

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SixtoReport: D12 Satellite Info in Post#1 - Live!


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#1161 OFFLINE   LameLefty

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Posted 19 December 2009 - 09:18 PM

No the launch will continue as plan! Ciel is disputing the use of the RB-2A parts from D12 and the freqencies it would use..


Barring technical problems with the launcher, the satellite itself or ground support equipment, the current date is as firm as it gets in the space launch business. :)

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#1162 OFFLINE   Coca Cola Kid

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Posted 19 December 2009 - 09:23 PM

Ok good. There's been enough delays already. Lets get this bird in the sky!

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#1163 OFFLINE   evan_s

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Posted 20 December 2009 - 01:21 AM

Ok good. There's been enough delays already. Lets get this bird in the sky!


The RB-2A, aka the bss package, on D12 is only a very small part of it and it is unclear at this point what it will even be used for. The national Tps and most of the spots are setup for KA usage. Really the bss package was a last minute addition and might even be just to push this issue with out having to really get anywhere along building another sat.

Just a thought but does anyone know which other bss slots are shared and which aren't? Sharing the same slot with Canada and Mexico or the Caribbean makes sense but sharing the same slot with Canada and Mexico puts them really close together and really ends up limiting one or both to only using spots which would primarily limit it to providing locals. This really doesn't seem like it uses the allocation more efficiently.

#1164 OFFLINE   LameLefty

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Posted 20 December 2009 - 07:44 AM

Not directly related to the upcoming launch of D12 or the regulatory issues facing the RB-2A payload, but good reading for anyone interested in the financial and managerial aspects of the satellite launch biz . . .

http://www.ilslaunch...ce-Dec-2009.pdf

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#1165 OFFLINE   Sixto

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Posted 20 December 2009 - 07:58 AM

The RB-2A, aka the bss package, on D12 is only a very small part of it and it is unclear at this point what it will even be used for. The national Tps and most of the spots are setup for KA usage. Really the bss package was a last minute addition and might even be just to push this issue with out having to really get anywhere along building another sat.

Just a thought but does anyone know which other bss slots are shared and which aren't? Sharing the same slot with Canada and Mexico or the Caribbean makes sense but sharing the same slot with Canada and Mexico puts them really close together and really ends up limiting one or both to only using spots which would primarily limit it to providing locals. This really doesn't seem like it uses the allocation more efficiently.

The FCC approvals from 7/28/2009 ... the Notes are from early September last time I checked:

[table="header"]FCC Application|Company|Callsign|Slot|Notes
SAT-LOA-20050210-00031|Intelsat|S2662|91°|Surrendered
SAT-LOA-20060412-00042|Pegasus|S2698|91°|Surrendered
|
SAT-LOA-20060908-00099|DirecTV|S2711|99°|Paid
SAT-LOA-20050210-00029|Intelsat|S2660|99°|Surrendered
|
SAT-LOA-20060908-00100|DirecTV |S2712|103°|Paid
|
SAT-LOA-19970605-00049|DirecTV| S2242|107°|Surrendered
SAT-LOA-20020328-00052|EchoStar|S2442|107°|Paid
SAT-LOA-20060412-00043|Pegasus|S2699|107°|Surrendered
|
SAT-LOA-20020328-00051|EchoStar|S2441|111°|Paid
SAT-LOA-19970605-00050|DirecTV| S2243|111°|Paid
[/table]

Edited by Sixto, 20 December 2009 - 08:06 AM.

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#1166 OFFLINE   LameLefty

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Posted 20 December 2009 - 08:07 AM

Good data from the FCC. I was digging around the ITU site earlier trying to see which particular slots might be shared among countries like 103 is, but I haven't had enough coffee to find what I need yet. :P

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#1167 OFFLINE   hdtvfan0001

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Posted 20 December 2009 - 08:09 AM

WOW - only 202 hours away now and counting...:D
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#1168 OFFLINE   Piratefan98

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Posted 20 December 2009 - 10:36 AM

You know, in the cut-throat world of satellite/cable, I'm surprised one of these sleazy cable companies hasn't hired a mercenary with one of those shoulder-mounted anti aircraft missile launchers to shoot down a DirecTV satellite launch. How much could a job like that cost? 50K? 100K?

#1169 OFFLINE   TheRatPatrol

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Posted 20 December 2009 - 10:42 AM

You know, in the cut-throat world of satellite/cable, I'm surprised one of these sleazy cable companies hasn't hired a mercenary with one of those shoulder-mounted anti aircraft missile launchers to shoot down a DirecTV satellite launch. How much could a job like that cost? 50K? 100K?

SHHHH!! Don't give them any ideas! :eek2:

#1170 OFFLINE   HoTat2

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Posted 20 December 2009 - 11:23 AM

You know, in the cut-throat world of satellite/cable, I'm surprised one of these sleazy cable companies hasn't hired a mercenary with one of those shoulder-mounted anti aircraft missile launchers to shoot down a DirecTV satellite launch. How much could a job like that cost? 50K? 100K?


While all in fun of course, but can an antiaircraft missile even catch up to a rocket like the Proton? Early in its accent phase perhaps if a terrorist could get close enough to the launch pad, but about a minute or so after launch, the Proton is moving way too fast for any shoulder fired AA missile to catch I would think ... :)

#1171 OFFLINE   P Smith

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Posted 20 December 2009 - 11:29 AM

Good shoulder launcher could go high for 5 km altitude. ;) What is a time interval before Proton will reach the level ?

#1172 OFFLINE   LameLefty

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Posted 20 December 2009 - 12:18 PM

Good shoulder launcher could go high for 5 km altitude. ;) What is a time interval before Proton will reach the level ?


Forget the altitude - they don't have the impulse to catch it unless launched in the first 20 seconds or so, from VERY close. ;)

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#1173 OFFLINE   HoTat2

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Posted 20 December 2009 - 12:49 PM

BTW, in case anyone has some ideas;

Just studying over D12's "Schedule S" and I'm counting a sum total of up to 123 spotbeam transponders maximum, yet the specifications for D10, 11, and 12 always list only 55 active TWTAs (not counting the 15 spares) at 70 watts each to service the spotbeam transponders.

Even taking away Tps. assigned to the 5 spotbeams D12 will not be using at 103 brings the total Tps. count down to 110.

So what is this, around two spotbeam transponders share one TWTA between them? :confused:

I mean the Schedule S does give each spotbeam transponder's initial power output before the antenna feeder system loss at ~15.4 dbw or 35 watts which is 1/2 of 70 watts.

Appreciate any thoughts...

#1174 OFFLINE   P Smith

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Posted 20 December 2009 - 01:30 PM

Forget the altitude - they don't have the impulse to catch it unless launched in the first 20 seconds or so, from VERY close. ;)

It could, lets count speed of the Proton monster at 4 KM altitude and assume the AA gadget could fly with 2M speed and located at 4 KM off launch pad.

#1175 OFFLINE   LameLefty

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Posted 20 December 2009 - 02:05 PM

It could, lets count speed of the Proton monster at 4 KM altitude and assume the AA gadget could fly with 2M speed and located at 4 KM off launch pad.


It's not the speed, it's the impulse and acceleration.

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#1176 OFFLINE   rrrick8

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Posted 20 December 2009 - 02:37 PM

http://countdown.tra...mezone=GMT-0000

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#1177 OFFLINE   P Smith

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Posted 20 December 2009 - 05:38 PM

It's not the speed, it's the impulse and acceleration.

Every variable of resulting formula would be accounted.
[Those years resolving a system of equations of flying object in different layers of Earth atmosphere ... I recall successful missions at 0.1...5 KM altitudes for targets flying up to 1.5M ]

#1178 OFFLINE   JoeTheDragon

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Posted 20 December 2009 - 07:05 PM

You know, in the cut-throat world of satellite/cable, I'm surprised one of these sleazy cable companies hasn't hired a mercenary with one of those shoulder-mounted anti aircraft missile launchers to shoot down a DirecTV satellite launch. How much could a job like that cost? 50K? 100K?


I don't they want to go to a Russian prison by doing that.

#1179 OFFLINE   hdtvfan0001

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Posted 20 December 2009 - 07:56 PM

You know, in the cut-throat world of satellite/cable, I'm surprised one of these sleazy cable companies hasn't hired a mercenary with one of those shoulder-mounted anti aircraft missile launchers to shoot down a DirecTV satellite launch. How much could a job like that cost? 50K? 100K?

That's just sooooooo wrong.
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#1180 OFFLINE   Coca Cola Kid

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Posted 20 December 2009 - 08:02 PM

Any word about if it will be televised or are we stuck with the online feed from ILS?

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