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"Europe's global satellite-navigation system, Galileo, comes a step nearer on
Wednesday with the launch of its first demonstrator spacecraft.
Giove-A will be lofted into orbit by a Soyuz rocket from Baikonur, Kazakhstan.
The demonstrator, built in the UK by Surrey Satellite Technology Ltd, will test
key
components in the Galileo network, notably its atomic clocks.
It also has the job of securing the radio frequencies allocated to the project
under
international agreements.
This requires Giove-A to transmit a sat-nav signal of the correct structure from
orbit within the next six months. The SSTL team hopes to do it within a matter of
days."
More at http://news.bbc.co.uk/2/hi/science/nature/4555298.stm
--
Nick in Northallerton
Also @ www.whelan.me.uk
And nickw7coc on
Yahoo & MSN
but I use http://www.trillian.cc as I like it better
also on Skype and Google talk
> "Europe's global satellite-navigation system, Galileo, comes a step nearer
on
> Wednesday with the launch of its first demonstrator spacecraft.
> Giove-A will be lofted into orbit by a Soyuz rocket from Baikonur,
Kazakhstan.
> Giove-A will be lofted into orbit by a Soyuz rocket from Baikonur,
> The demonstrator, built in the UK by Surrey Satellite Technology Ltd, will
test key
> components in the Galileo network, notably its atomic clocks.
> It also has the job of securing the radio frequencies allocated to the
project under
> It also has the job of securing the radio frequencies allocated to the
> international agreements.
> This requires Giove-A to transmit a sat-nav signal of the correct
structure from
> This requires Giove-A to transmit a sat-nav signal of the correct
> orbit within the next six months. The SSTL team hopes to do it within a
matter of
> days."
> More at http://news.bbc.co.uk/2/hi/science/nature/4555298.stm
> --
> Nick in Northallerton
> Also @ www.whelan.me.uk
> And nickw7coc on
> Yahoo & MSN
> but I use http://www.trillian.cc as I like it better
> also on Skype and Google talk
> More at http://news.bbc.co.uk/2/hi/science/nature/4555298.stm
> --
> Nick in Northallerton
> Also @ www.whelan.me.uk
> And nickw7coc on
> Yahoo & MSN
> but I use http://www.trillian.cc as I like it better
> also on Skype and Google talk
Nick
Thanks for this. I'm a bit confused. Is the European system intended to
entirely independent of the US system, or will it work alongside GPS to
produce positioning data that is more robust or accurate? Is this the start
of EGNOS, or is that something else? More importantly :-) will my newly
acquired, WAAS enabled Holux GPS unit be able to take advantage of the
improvements, when they come?
Steve born in Northallerton
Steve W wrote:
> Thanks for this. I'm a bit confused. Is the European system intended to
> entirely independent of the US system, or will it work alongside GPS to
> produce positioning data that is more robust or accurate? Is this the start
> entirely independent of the US system, or will it work alongside GPS to
> produce positioning data that is more robust or accurate? Is this the start
Galileo will be independent of GPS, but they can also be used together
to improve the position solution. This naturally only if the receiver is
capable of receiving both of them. GPS and Galileo will share the same
L1 frequency, so it is possible to develop a combined GPS/Galileo
receiver that only needs a single band antenna and RF receiver, so the
extra cost can be minimized in basic receivers. More advanced receivers
will receive both GPS and Galileo on more than one frequency band.
> of EGNOS, or is that something else? More importantly :-) will my newly
> acquired, WAAS enabled Holux GPS unit be able to take advantage of the
> improvements, when they come?
> acquired, WAAS enabled Holux GPS unit be able to take advantage of the
> improvements, when they come?
EGNOS = WAAS = MSAS = SBAS, it's all the same thing, it is just named
differently in different parts of the world. SBASes provide differential
corrections and integrity monitoring information for positioning
satellites, but can't do positioning by themselves. Galileo is not EGNOS.
Your current GPS unit will in all probability not understand Galileo,
but will understand EGNOS. Anyway it will still take years before
Galileo is operational so you'll probably upgrade your GPS receiver
during that time a few times anyway.. And it might take years before
EGNOS is declared operational as well..:-)
You might want to check http://www.esa.int/esaNA/egnos.html and
http://www.esa.int/esaNA/galileo.html .
Tapio
> Steve W wrote:
> > Thanks for this. I'm a bit confused. Is the European system intended
to
> > entirely independent of the US system, or will it work alongside GPS to
> > produce positioning data that is more robust or accurate? Is this the
start
> > produce positioning data that is more robust or accurate? Is this the
> Galileo will be independent of GPS, but they can also be used together
> to improve the position solution. This naturally only if the receiver is
> capable of receiving both of them. GPS and Galileo will share the same
> L1 frequency, so it is possible to develop a combined GPS/Galileo
> receiver that only needs a single band antenna and RF receiver, so the
> extra cost can be minimized in basic receivers. More advanced receivers
> will receive both GPS and Galileo on more than one frequency band.
> to improve the position solution. This naturally only if the receiver is
> capable of receiving both of them. GPS and Galileo will share the same
> L1 frequency, so it is possible to develop a combined GPS/Galileo
> receiver that only needs a single band antenna and RF receiver, so the
> extra cost can be minimized in basic receivers. More advanced receivers
> will receive both GPS and Galileo on more than one frequency band.
> > of EGNOS, or is that something else? More importantly :-) will my newly
> > acquired, WAAS enabled Holux GPS unit be able to take advantage of the
> > improvements, when they come?
> > acquired, WAAS enabled Holux GPS unit be able to take advantage of the
> > improvements, when they come?
> EGNOS = WAAS = MSAS = SBAS, it's all the same thing, it is just named
> differently in different parts of the world. SBASes provide differential
> corrections and integrity monitoring information for positioning
> satellites, but can't do positioning by themselves. Galileo is not EGNOS.
> Your current GPS unit will in all probability not understand Galileo,
> but will understand EGNOS. Anyway it will still take years before
> Galileo is operational so you'll probably upgrade your GPS receiver
> during that time a few times anyway.. And it might take years before
> EGNOS is declared operational as well..:-)
> You might want to check http://www.esa.int/esaNA/egnos.html and
> http://www.esa.int/esaNA/galileo.html .
> Tapio
> differently in different parts of the world. SBASes provide differential
> corrections and integrity monitoring information for positioning
> satellites, but can't do positioning by themselves. Galileo is not EGNOS.
> Your current GPS unit will in all probability not understand Galileo,
> but will understand EGNOS. Anyway it will still take years before
> Galileo is operational so you'll probably upgrade your GPS receiver
> during that time a few times anyway.. And it might take years before
> EGNOS is declared operational as well..:-)
> You might want to check http://www.esa.int/esaNA/egnos.html and
> http://www.esa.int/esaNA/galileo.html .
> Tapio
Many thanks, Tapio. That has made it much clearer to me, and probably to
many others.
Thanks
Steve
Gegroet,
Nick schreef:
> "Europe's global satellite-navigation system, Galileo, comes a step nearer on
> Wednesday with the launch of its first demonstrator spacecraft.
> Wednesday with the launch of its first demonstrator spacecraft.
> Giove-A will be lofted into orbit by a Soyuz rocket from Baikonur, Kazakhstan.
> The demonstrator, built in the UK by Surrey Satellite Technology Ltd, will
test key
> The demonstrator, built in the UK by Surrey Satellite Technology Ltd, will
> components in the Galileo network, notably its atomic clocks.
> It also has the job of securing the radio frequencies allocated to the project
under
> It also has the job of securing the radio frequencies allocated to the project
> international agreements.
(...)
> More at http://news.bbc.co.uk/2/hi/science/nature/4555298.stm
For people in Europe with a satellite-receiver and a motorised dish. The
launch is also broadcasted on the ESA TV on Eutelsat W2 (16 east)
More info: http://television.esa.int/sche_detail.cfm?id=1593
http://television.esa.int/photos/Giove__28122005.pdf
At 10:30 UTC, a short summary will also be broadcast via "Europe By
Satellite" (the information TV-channel of the EU); which is broadcast
via hotbird and the internet. More info:
In english: http://europa.eu.int/comm/avservices/ebs/welcome_en.cfm
En français: http://europa.eu.int/comm/avservices/ebs/welcome_fr.cfm
The exact scedule can be found here:
http://europa.eu.int/comm/avservices/ebs/schedule.cfm?date=12/28/2005
(Just click on the hour on the left of the scedule to start the
on-demand playback).
Cheerio! Kr. Bonne.
