On Feb 2, 11:09*am, claudegps <claude...@gmail.com> wrote:
> Seems that EU has ordered other 8 satellites for the Galileo
> constellation.
> By 2015, there should be 26 satellites for Galileo in space.
>
> 4 IOV + 14 IOC + 8 new sates just awarded
>
> I was a bit skeptic that the EU could finance so quickly more
> satellites than the 18 alread planned, but I was wrong 
> (and Alan was right, if I remember well)
Notwithstanding the deployment timeline, I was never a skeptic about
the system coming to fruition. Of course, presenting a schedule on
the VuGraph is notactually executing it.
But they do have a plan to accelerate the program. They will launch
four satellites simultaneously on the Ariane 5 rocket. Certainly
there is a gamble of losing assets to a launch failure but the Ariane
5 pretty much works flawlessly.
http://spaceflightnow.com/news/n1202...ileocontracts/
GPS will require five years to orbit four new satellites with it's
snail's pace replenishment schedule.
While NAVSTAR user equipment still abounds, development and production
Galileo equipment will also certainly be accelerated.
Galileo exhibits a major a major advantage over GPS .. it has no
legacy users. So it comes to fruition as a modernized system with a
totally compatible ground control system. With 'slow execution' of
OCX, modernized GPS signals will not be available until 2016! Indeed,
it's possible that a GPS IIRM might be decommissioned before any of
it's modernized signals are usable. That is poor project management
and the USAF should hang its head in shame when Galileo eclipses
NAVSTAR as the 'Gold Standard'.
Neverthe less, EU has expressed concern about a lack of innovation
with respect to utilization of Galileo's superior attributes.
Certainly, NAVSTAR has served us well for general navigation and
precision timing. With augmentation submeter real-time positioning is
routinely achieved. With post processing, centimeter positioning is
achieved. The book of GIS applications is being written during the
NAVSTAR era. What superior applications can Galileo actually
achieve? I guess that depends upon how much superior the real world
performance actually will be.
--- CHAS