Εμφάνιση αναρτήσεων με ετικέτα GLONASS. Εμφάνιση όλων των αναρτήσεων
Εμφάνιση αναρτήσεων με ετικέτα GLONASS. Εμφάνιση όλων των αναρτήσεων

Δευτέρα 29 Σεπτεμβρίου 2014

Russia Successfully Places Satellite into Orbit

Russia's rocket Proton has managed to bring its telecommunications satellite called Beam into orbit, Russian space agency Roskosmos has announced.

Beam is expected to help GLONASS, the Russian satellite navigation system of the Russian Aerospace Defense Forces, to improve its precision.

The upgrade will make GLONASS virtually identical to the American GPS, the Russian Times wrote Sunday.


It will also improve communications with the Russian part of the International Space Station and also with launchers of other space devices.

The result of the operation was widely expected after an attempt with a similar rocket failed. - See more at: http://www.novinite.com/articles/163664
28/9/14
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Δευτέρα 25 Αυγούστου 2014

Russian booster worked properly when deploying Galileo satellites

MOSCOW, August 25. /ITAR-TASS/. Russia’s Soyuz rocket and Fregat booster worked properly when deploying European Galileo satellites last week when they found to be slightly deviating from the target orbit, the Federal Space Agency (Roscosmos) said on Monday.

“The express analysis of the telemetric data shows that there are no complaints about the work of the onboard equipment of the Soyuz carrier rocket and Fregat booster,” Roscosmos said.


Russia’s Lavochkin aerospace company confirmed on Saturday there were errors in the deployment of European Galileo satellites by its Fregat-MT booster.
“There were orbiting errors,” the company said, following reports that the satellites had deviated from the target orbit.
  • Russia’s Soyuz rocket with a Fregat-MT upper stage and two Galileo navigation system satellites blasted off from Kourou, French Guiana, on Friday, August 22.
Roscomos has set up an independent emergency commission to investigate the matter.
http://en.itar-tass.com/non-political/746603
25/8/14
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Galileo: European Commission requests full details of launch problems from Arianespace and ESA

European Commission, Press release, Brussels, 25 August 2014:

Following the failure on Friday August 22nd to inject Galileo satellites 5 and 6 into the correct orbit, the European Commission has requested Arianespace and the European Space Agency (ESA) to provide full details of the incident, together with a schedule and an action plan to rectify the problem.
According to initial information from Arianespace, the problem involved the upper stage of the launcher, as a result of which the satellites were not injected into the required orbit.

The Commission is participating in the Board of Inquiry set up to identify the causes of the problem, which is expected to present preliminary results in the first half of September. This Board of Inquiry will aim to put in place corrective measures at the level of Arianespace to avoid such incidents being repeated with future launches.

ESA has informed the Commission that its Control Centre in Darmstadt (Germany) has the satellites under control, although they are not placed in their intended orbital position. The European Commission is working in close cooperation with the European Space Agency to maximise the possibilities to use the two satellites as part of the Galileo network. 

The Commission has set up an internal Task Force to monitor the situation, working in close contact with ESA and Arianespace. Both ESA and Arianespace have been invited to Brussels to present the initial results of their inquiry to European Commissioner for Industry and Entrepreneurship Ferdinando Nelli Feroci in the first week of September.
Commissioner Ferdinando Nelli Feroci, commented "The problem with the launch of the two Galileo satellites is very unfortunate. The European Commission will participate in an inquiry with ESA to understand the causes of the incident and to verify the extent to which the two satellites could be used for the Galileo programme. I remain convinced of the strategic importance of Galileo and I am confident that the deployment of the constellation of satellites will continue as planned."
 
Background - benefits of EU's satellite navigation systems
Galileo is the EU's programme to develop a global satellite navigation system under European civilian control. Galileo signals will allow users to know their exact position in time and space with greater precision and reliability than with the currently existing systems. Galileo will be compatible with and, for some of its services, interoperable with existing similar systems, but will be autonomous.
The improved positioning and timing information supplied by Galileo will have positive implications for many services and users in Europe. Products that people use daily, for example in-car navigation devices and mobile phones will benefit from the extra accuracy provided by Galileo. Galileo's satellite navigation data will also benefit critical services for citizens and users, for example it will make road and rail transport systems safer and improve our responses to emergency situations.
Once it has entered into its operational phase, Galileo will also allow the introduction of a wide range of innovative new products and services in other industries and generate economic growth, innovation and highly skilled jobs. In 2013 the annual global market for global navigation satellite products and services was valued at €175 billion and it is expected to grow over the next years to an estimated €237 billion by 2020.
The Commission aims to have the full constellation of 30 Galileo satellites (which includes six in-orbit active spares) in operation before the end of this decade.
To foster economic development and maximise the socio-economic benefits expected from the system, the Commission plans to update the EU's action plan for global navigation satellite system applications and propose new measures to promote the use of Galileo.
Since 2011, four Galileo satellites have been launched and used as part of the In-Orbit Validation phase, allowing the first autonomous position fix to be calculated based on Galileo-only signals in March 2013. 

The European Geostationary Navigation Overlay Service (EGNOS) is already bringing practical benefits. EGNOS improves the accuracy and the reliability of signals from existing global navigation satellite systems by correcting signal measurement errors and by providing information about signal integrity. EGNOS is used for example by the aviation industry, to provide the positioning accuracy needed for more precise landings, fewer delays and diversions and more efficient routes in Europe.
http://europa.eu/rapid/press-release_IP-14-945_en.htm?locale=en
25/8/14
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Σάββατο 23 Αυγούστου 2014

Galileo satellites not on right orbit (Arianespace)

PARIS: Two European Galileo satellites launched by a Russian-built rocket on Friday (Aug 22) from French Guiana have not reached their intended orbit, launch firm Arianespace said Saturday.

"Observations taken after the separation of the satellites from the Soyuz VS09 (rocket) for the Galileo Mission show a gap between the orbit achieved and that which was planned," the company said in a statement. "They have been placed on a lower orbit than expected. Teams are studying the impact this could have on the satellites.”
Arianespace declined to comment on whether their trajectories can be corrected.

The satellites Doresa and Milena took off from the Kourou space centre in French Guiana at 1227 GMT Friday after a 24-hour delay because of poor weather. They separated from the mothership to enter into free-flight orbit just under four hours after launch.

"These two satellites are the first of a new type of satellite that are fully owned by the EU, a step towards a fully-fledged European-owned satellite navigation system," said the European Commission, which funds the project.

The 5.4 billion euro (S$8.9 billion) Galileo constellation is designed as an alternative to the existing US Global Positioning System (GPS) and Russia's Glonass, and will have search and rescue capabilities.
Four Galileo satellites have been launched previously - one pair in October 2011 and another a year later.

Europe launches navigation satellites to rival GPS

Two satellites for Europe's Galileo navigation system - a rival to the American GPS - were successfully launched on Friday from Kourou in French Guyana, bringing the number of orbiters in the system to six.

The Galileo constellation is designed to give a competitive alternative to both the US Global Positioning System (GPS) and Russia's Glonass.

By the end of the decade, the system will cost Europe around 10 billion euros once operational and comprise 27 satellites orbiting earth at different altitudes.


French aerospace expert Philippe Baumard said the project would ultimately give Europe a significant strategic and economic edge.

“We’re getting there a bit late, but when it is up and running it will be a far better system than GPS,” Baumard, who is chief scientist at France's High Council for Strategic Education and Research, told FRANCE 24 on Friday.

“It has much better precision and the 10 billion euro price tag will be very cost effective,” he said, adding that Galileo represented a massive step forward from GPS which is “based on Cold War technology”.

One advantage of Galileo over GPS and Glonass, Baumard explained, is that having satellites orbiting at different altitudes will allow the system to pinpoint altitude – which GPS can’t do – bringing huge benefits to the global aerospace industry.

Galileo will also allow people to use connected devices within buildings, he said, leading to the development of new commercial applications, “although precisely what these will be has yet to be established”.

Less reliance on US satellite intelligence

Europe will finally have its own military satellite capabilities, Baumard added, bringing an end to the West’s reliance on US satellite intelligence.

“In conflicts we always have to rely on American satellite imagery,” Baumard explained. “They don’t release those images unless it is completely in their own interests. All that is going to change.”

Four Galileo satellites have already been launched – two in October 2011 and a second pair a year later.

The launch of the latest two orbiters, dubbed SAT 5 and SAT 6, had been delayed for over a year due to what the European Space Agency (ESA) described as "technical difficulties in the setting up of the production line and test tools".

Arianespace said Thursday it had signed a deal with the ESA to launch 12 more satellites "from 2015 onwards".

The ESA has previously said that 18 satellites should be able to provide initial navigation services to users "by mid-decade", with full services "scheduled for 2020".

In March last year, the ESA said Galileo's first four test satellites had passed a milestone by pinpointing their first ground location with an accuracy of between 10 and 15 metres.

http://www.france24.com/en/20140822-europe-galileo-navigation-satellites-rival-gps/
22/8/14
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Πέμπτη 24 Απριλίου 2014

Russia Set to Boost Space Cooperation With India, China

Russia is set to develop its space cooperation with India and China, the head of the Russian space agency Roscosmos Oleg Ostapenko said on Thursday.

“Recently, we received an invitation from Japan to discuss an array of questions,” he added.

The announcement was made amid threats of Russia’s western partners to freeze or cut cooperation with Russia amid tensions over Ukraine and Crimea secession. NASA threatened to cut space ties with Russia, but Roscosmos has yet received no official notifications.
The Russian space chief said that despite belligerent rhetoric, Russia’s space cooperation with European partners remains unharmed.

“We are now communicating with the space agencies of France, Germany and, particularly, with the European [Space Agency],” he told journalists.
  • Russia and its BRICS partners India and China have a long history of cooperation, including in space. 
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  • In July 2004, Russia and India signed a protocol to boost cooperation in space including space launches and joint development of the GLONASS satellite navigation system.

Deputy head of Roscosmos Sergey Savelyev said in mid-April that Russia and China are coordinating on major future research projects in space and agreed last year to expand it.
[en.ria.ru]
24/4/14
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