Galileo: началось...

[PIN]

it will continue once the next two satellites are launched at the end of summer

"
Это вряд ли...

[Чебурашка]

Обновлённый план развёртывания Galileo

Согласно http://www.gpsworld.com/gnss-system/news/galileo-launches-accelerated-12790

2013                  - Союз   2 спутника
2013                  - Союз   2 спутника
2013                  - Союз   2 спутника
2014                  - Ариан-5   4 спутника
2014                  - Союз   2 спутника
2014                  - Союз   2 спутника
2015                  - Ариан-5   4 спутника
2015                  - Ариан-5   4 спутника

К концу 2015 иметь в составе 24 спутника

[PIN]

Обновлённый план развёртывания Galileo

Лажа это, полная лажа. Причем, по ряду причин.

[Salo]

http://www.spacenews.com/civil/120403-galileo-encrypted-signals-pass-test.html

Tue, 3 April, 2012
Galileo's Encrypted Signals Pass Verification Test[/size]
By Peter B. de Selding

    PARIS — The encrypted signals intended for use by European military and civil government authorities as part of Europe's Galileo satellite navigation system have been validated aboard the first two orbiting Galileo satellites, the German-Italian joint venture company managing the constellation's operations announced April 2.

    The Public Regulated Service (PRS) signals from the two Galileo test satellites launched in October 2011 were verified for their accuracy and stability by Spaceopal, a joint venture between Telespazio of Rome and the German Aerospace Center, DLR.

    In an April 2 statement, Spaceopal said the performance verification tests with the two satellites and the control centers have now been completed. Two more Galileo In-Orbit Validation satellites, identical to the first two, are scheduled for launch in 2012 aboard a European version of Russia's Soyuz rocket. The first two Galileo satellites were on board the inaugural launch of Soyuz from Europe's Guiana Space Center spaceport in French Guiana in October.

    PRS signals are intended to be similar to the M-code service to be provided by the U.S. GPS constellation. Like the M-Code, PRS will not be generally available to private-sector Galileo users, but will be reserved for use by European military forces, civil-protection agencies and authorized security organizations.

    It remains unclear whether European Union users of PRS will need to pay a special fee to receive the encrypted data or will have unlimited free access to it. PRS in the past was a controversial part of Galileo as critics said its mere existence undermined the European system's image as a nonmilitary network.

    A prototype PRS receiver was developed earlier this year by Septentrio of Belgium and Qinetiq of Britain. Stationed at Telespazio's Fucino, Italy, facility, the receiver successfully demonstrated the reception of PRS signals.

    Galileo officials in the past have expressed concerns that China's Beidou/Compass navigation constellation, which is now being placed into orbit and will achieve operational status before Galileo, operates a PRS-/Code-M-type signal on radio spectrum that partly overlays the PRS signal.

    While this does not contravene any international radio frequency rules insofar as the two systems do not interfere with each other, it does mean that it will be difficult to jam the Chinese service without also jamming Galileo.

    Spaceopal will operate the Galileo constellation from facilities in Fucino and at a DLR center in Oberpfaffenhofen, Germany, under a contract valued at 194 million euros ($252 million) and signed in October 2010. [/size]

[Разъём]

it will continue once the next two satellites are launched at the end of summer

"
Это вряд ли...

Сентябрь или начало октября...

[instml]

First payload ready for next batch of Galileo satellites
 
19 April 2012

The next Galileo navigation payload has been completed and is on its way to meet the satellite platform that will host it in orbit.
 
The first of 14 Galileo 'Full Operational Capability' (FOC) navigation payloads has been shipped from Surrey Satellite Technology Ltd in the UK to prime contractor OHB System AG in Bremen Germany.



The payload – the part of the satellite that provides Galileo's precision positioning measurements and services to users worldwide – will then be added to its waiting satellite platform.

"The payload for the fifth satellite in the Galileo constellation is ready," said Didier Faivre, ESA's Director of the Galileo Programme and Navigation-related Activities.  

"While the next two satellites to be launched are currently undergoing testing, the next ones are being built. Another important step forward for the programme was made today."

The SSTL payload is engineered to provide all Galileo navigation services, and is based on European atomic clocks, navigation signal generators, high-power amplifiers and antennas.
 
 
"The delivery of our first Galileo payload is an important milestone towards achieving full satellite qualification at the end of the year, bringing together expertise, knowledge and innovation from almost a decade of SSTL involvement in Galileo," commented Matt Perkins, SSTL CEO.

"We are proud to lead the payload development for this landmark programme that will redefine what we expect from global navigation services."

The first two Galileo satellites entered orbit on 21 October 2011, with two more due at the end of this summer. These initial satellites carry payloads built by Astrium UK in Portsmouth, with Thales Alenia Space in Italy integrating them with their satellite platforms.

The new satellites are the follow-up batch of Galileo satellites, planned to begin launches in 2014.
 

 
Once all 14 are in orbit, the 18-strong Galileo constellation will achieve 'Initial Operational Capability' and will be able to provide initial navigation services – the full range of services will be available once all 30 satellites are in place in 2018.

In addition to these first 14 FOC satellites, the OHB–SSTL consortium was awarded a contract to build a further eight satellites for the Galileo system in February this year.
 
 
About Galileo
 
Galileo is an initiative of the European Commission and ESA to provide Europe with an independent global satnav system.

It combines the best atomic clock ever flown for navigation – accurate to one second in three million years – with a powerful transmitter to broadcast precise navigation data worldwide.

http://www.esa.int/esaCP/SEM1Z7KWZ0H_index_0.html

[Salo]

http://www.spacenews.com/civil/120703-giovea-retired.html

Tue, 3 July, 2012
Galileo Placeholder Satellite Giove-A To Be Retired[/size]
By Peter B. de Selding

    PARIS — Europe's Giove-A navigation satellite, which was built on a shoestring budget almost as an afterthought but ended up saving precious broadcast-frequency rights for the coming Galileo constellation, is being retired, the 19-nation European Space Agency (ESA) announced July 3.

    Launched in December 2005 on what was supposed to be a 27-month mission, Giove-A took on crucial importance when the larger Giove-B, built by a different industrial consortium, fell behind schedule. It was Giove-A that preserved Europe's priority rights to use radio spectrum needed for what is intended to be a 30-satellite Galileo constellation.

    The medium Earth orbiting Giove-A was built by Surrey Satellite Technology Ltd. (SSTL) of Britain, a company that had already launched a couple dozen small spacecraft for governments including China, the United States, France and Chile but whose smaller-faster credo was viewed skeptically by ESA and Europe's space industrial base. Giove-A was viewed by some at the time as an unnecessary expenditure.

    SSTL built and delivered the satellite under a 30-month contract valued at 28 million euros, or about $36 million at current exchange rates. Because of concerns about whether Giove-B would make it into orbit in time, ESA signed a second contract with SSTL for a Giove-A2 satellite that was never completed.

    Giove-B, built by a consortium led by Astrium Satellites and Thales Alenia Space that had promised to finish the job before SSTL, eventually was launched in April 2008. Giove-B, which contains a backup atomic clock and resembles more closely the satellites that will form the operational Galileo constellation, remains operational.

    In its statement, ESA said Giove-A will be shut down in a retirement orbit about 100 kilometers higher in altitude than its operating orbit of 23,222 kilometers.

    The first two Galileo validation satellites were launched in October 2011, with the final pair set for launch next October. These four spacecraft were built by the same Astrium-Thales Alenia Space team that built Giove-B.

    But in a decision that may have been influenced by SSTL's performance on the Giove-A program, ESA and the European Union have selected a team led by OHB AG of Germany, with SSTL providing the payload electronics, to build the first 22 operational Galileo satellites, to be launched starting in 2013.

    Giove-B will be used in the coming months for calibration tests with the Galileo validation satellites before being sent into retirement in September. Giove-B's graveyard orbit will be 300 kilometers above its operating orbit, ESA said.[/size]

[Sharicoff]

Mission accomplished, GIOVE-B heads into deserved retirement

Картинка порадовала (кликабельно):



Интерфейс программы на правом демонстрационном экране узнаете?

[LRV_75]

а еще у них коробочка с CD-ROMами на полке  :?  

[PIN]

Все соответственно бюджету миссии

[Sharicoff]

Все соответственно бюджету миссии

Интересно, открытку Стоффу они отправили?

[PIN]

Это кто такой?

[G.K.]

Это кто такой?

Автор одной прикольной программы, орбитрона.

[G.K.]

Интерфейс программы на правом демонстрационном экране узнаете?

Ага   Он наверно порадуется, кто его детище юзает.
Хотя лучше бы сырцы открыл. Может кто и стал бы развивать.

[Sharicoff]

Это кто такой?

http://www.stoff.pl/cardware.php

[PIN]

А, Орбитрон...
Так его и у нас в ESOC используют в main control room регулярно. Для множества тестов он вполне пригоден и требует существенно меньше затрат времени, чем свое ПО, "завязанное" с другими ИТ-системами. Я сам пару раз тоже ленился таким образом.

[G.K.]

А, Орбитрон...
Так его и у нас в ESOC используют в main control room регулярно. Для множества тестов он вполне пригоден и требует существенно меньше затрат времени, чем свое ПО, "завязанное" с другими ИТ-системами. Я сам пару раз тоже ленился таким образом.

ХС не пробовали использовать?

[PIN]

А это что такое?
Я не сомневаюсь, что есть множество подобных средств, но того, что используется (Орбитрон, AGI STK для всего неформального или некритичного, средства визуализации MOIS - для остального) хватает...

[G.K.]

А это что такое?

А это ещё один такой софт, ныне частично заменивший орбитрон.
Вот сайт: http://www.heavensat.ru/
 Но есть методы обхода (как ручного, так и автоматизированного) непонимания орбитроном нового спейстрека.

[Чебурашка]

Практические эксперименты по определению координат с помощью GALILEO (2-х спутников GIOVE и 2-х IOC)

First Results: Precise Positioning with Galileo Prototype Satellites