Planned launches№ - Date - Satellite(s) - Orbital Plane - Rocket - Launch Site - Time (UTC)05 - middle 2014 - Galileo-FOC FM01 (Doresa)/Galileo-FOC FM02 (Milena) - Third plane - Soyuz-STB/Fregat-MT (VS??) - Kourou ELS06 - 2014 - Galileo-FOC FM03 (Adam)/Galileo-FOC FM04 (Anastasia) - First plane? - Soyuz-STB/Fregat-MT (VS??) - Kourou ELS07 - 2014 - Galileo-FOC FM05 (Alba)/Galileo-FOC FM06 (Oriana) - Second plane? - Soyuz-STB/Fregat-MT (VS??) - Kourou ELS
a Galileo dispenser is being developed for Ariane 5 ES. This dispenser will be able to carry and release four Galileo satellites in pairs into orbits at some 22 300 km altitude.
“But for Galileo Second Generation, the satellites could potentially incorporate electric propulsion – allowing them to target themselves directly instead of relying on the upper stage.” This would offer several advantages. Freeing up mass by doing without the upper stage means more satellites could be carried by individual rocket: up to three by Soyuz, while Ariane 5s carrying commercial telecom satellites could piggyback a quartet as secondary passengers. The lightweight Vega launchers might loft individual satellites. At the same time, the mass of each satellite could still increase – up to 1500 kg or more from the current 700 kg. Enlarging the satellite would enable an expanded navigation payload to support a greatly extended range of Galileo services.
"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," said launch service provider Arianespace, in a statement."They have been placed on a lower orbit than expected. Teams are studying the impact this could have on the satellites," it added.Arianespace declined to comment on whether their trajectories could be corrected, the AFP news agency reports.
The targeted orbit was circular, inclined at 55 degrees with a semi major axis of 29,900 kilometers. The satellites are now in an elliptical orbit, with excentricity of 0.23, a semi major axis of 26,200 km and inclined at 49.8 degrees
Press ReleaseGalileo satellites experience orbital injection anomaly on Soyuz launch: Initial reportKourou, August 23, 2014http://www.arianespace.com/news-press-release/2014/8-23-2014.aspQuoteThe targeted orbit was circular, inclined at 55 degrees with a semi major axis of 29,900 kilometers. The satellites are now in an elliptical orbit, with excentricity of 0.23, a semi major axis of 26,200 km and inclined at 49.8 degrees
The article talks abut 6 to 8 birds per year. And I seriously doubt they can do an ES mission on 2015 with the sort of schedule pressure that they have on Ariane 5. Unless they have their "institutional" slot from the ATV moved to this.
Quote from: baldusi on 08/22/2014 05:25 pmThe article talks abut 6 to 8 birds per year. And I seriously doubt they can do an ES mission on 2015 with the sort of schedule pressure that they have on Ariane 5. Unless they have their "institutional" slot from the ATV moved to this.I thought ATV-5 was the last, so there wouldn't be an ATV mission slot in 2015?
Quote from: Hobbes-22 on 09/01/2014 10:05 amQuote from: baldusi on 08/22/2014 05:25 pmThe article talks abut 6 to 8 birds per year. And I seriously doubt they can do an ES mission on 2015 with the sort of schedule pressure that they have on Ariane 5. Unless they have their "institutional" slot from the ATV moved to this.I thought ATV-5 was the last, so there wouldn't be an ATV mission slot in 2015?I should have said that they have kept their "institutional" slot now that the ATV project ended. In other words, may be they decided to keep one ES launch per year and switched payloads to Galileo.
Quote from: baldusi on 09/01/2014 01:06 pmQuote from: Hobbes-22 on 09/01/2014 10:05 amQuote from: baldusi on 08/22/2014 05:25 pmThe article talks abut 6 to 8 birds per year. And I seriously doubt they can do an ES mission on 2015 with the sort of schedule pressure that they have on Ariane 5. Unless they have their "institutional" slot from the ATV moved to this.I thought ATV-5 was the last, so there wouldn't be an ATV mission slot in 2015?I should have said that they have kept their "institutional" slot now that the ATV project ended. In other words, may be they decided to keep one ES launch per year and switched payloads to Galileo.Will somebody please tell me what is the bottlenecks to increased flight rate ?
Quote from: floss on 09/01/2014 01:38 pmQuote from: baldusi on 09/01/2014 01:06 pmQuote from: Hobbes-22 on 09/01/2014 10:05 amQuote from: baldusi on 08/22/2014 05:25 pmThe article talks abut 6 to 8 birds per year. And I seriously doubt they can do an ES mission on 2015 with the sort of schedule pressure that they have on Ariane 5. Unless they have their "institutional" slot from the ATV moved to this.I thought ATV-5 was the last, so there wouldn't be an ATV mission slot in 2015?I should have said that they have kept their "institutional" slot now that the ATV project ended. In other words, may be they decided to keep one ES launch per year and switched payloads to Galileo.Will somebody please tell me what is the bottlenecks to increased flight rate ?Do you mean within Galileo deployment or for Ariane 5 in general?
Quote from: baldusi on 09/01/2014 02:22 pmQuote from: floss on 09/01/2014 01:38 pmWill somebody please tell me what is the bottlenecks to increased flight rate ?Do you mean within Galileo deployment or for Ariane 5 in general?Gallileo deployment only a general increase will not get funding without a major political decision.
Quote from: floss on 09/01/2014 01:38 pmWill somebody please tell me what is the bottlenecks to increased flight rate ?Do you mean within Galileo deployment or for Ariane 5 in general?
Will somebody please tell me what is the bottlenecks to increased flight rate ?
Quote from: floss on 09/01/2014 02:32 pmQuote from: baldusi on 09/01/2014 02:22 pmQuote from: floss on 09/01/2014 01:38 pmWill somebody please tell me what is the bottlenecks to increased flight rate ?Do you mean within Galileo deployment or for Ariane 5 in general?Gallileo deployment only a general increase will not get funding without a major political decision.I don't have inside information, but they have had a lot of issues this year. Ariane-5 was seriously delayed because of the Optus-10 issues, and it already brought some delay from payload issues on 2013. So there's a lot of backlog. On the other hand, ESA pays a hefty subsidy and I imagine that they can reserve their slot for the ES.Normally Ariane-5 have a 24 month lead time. And the contract for the three ES was signed just last month, but they had done a lot of integration work previously, and they had already signed a framework agreement that included Soyuz and Ariane-5. Thus, I'd guess that this was just rubber stamping what they were working on previously. As I said before, I don't have any insight, but I would hazard a guess that ES won't be a schedule issue (save delays of the previous mission).Regarding Soyuz/Fregat, they are currently in stand down. It will take at least a couple of months before the combo is cleared for flight. If the thruster failure was a physical one, they might have to send the current Fregat back and get a new one, which might add some time. I would expect between 3 and 6 month delays on the Soyuz/Fregat schedule.On the other hand, while current orbit of FOC M1 is outside of the Galileo allowed specification, it's perfectly good for satellite validation. Thus, the payload issues should be worked out and the only delay should be for the Soyuz segment. I don't expect an additional ES because the Soyuz is much cheaper.I also expect that ESA will make an additional 6 satellite buy to replenish the fleet. But that's pure speculation on my part.
One voice close to the action says, “The problems of Galileo are not within the power of the Commissioner. At present, out of six satellites in orbit, only one is truly functional. Next launch, of two with Soyuz, could be in February, followed by an Arianne 5 launch in September-October [2015]. So, we’ve lost two full years — 2013 and 2014.”
QuoteOne voice close to the action says, “The problems of Galileo are not within the power of the Commissioner. At present, out of six satellites in orbit, only one is truly functional. Next launch, of two with Soyuz, could be in February, followed by an Arianne 5 launch in September-October [2015]. So, we’ve lost two full years — 2013 and 2014.”http://www.insidegnss.com/node/4254
Then how is the correct voice like?
Quote from: beidou on 10/25/2014 08:15 pmThen how is the correct voice like?all 6 are functional, IOV has 4, all operational, with 1 on less power, FOC has 2 functional but with part of the payload switched off until in better orbit.
An interesting article from GPS World - Galileo: A Constellation of One?http://gpsworld.com/galileo-a-constellation-of-one/
Galileo Satellite Recovered and Transmitting Navigation Signals3 December 2014 Europe’s fifth Galileo satellite, one of two delivered into a wrong orbit by VS09 Soyuz-Fregat launcher in August, has transmitted its first navigation signal in space on Saturday 29 November 2014. It has reached its new target orbit and its navigation payload has been successfully switched on. A detailed test campaign is under way now the satellite has reached a more suitable orbit for navigation purposes.RecoveryThe fifth and sixth Galileo satellites, launched together on 22 August, ended up in an elongated orbit travelling up to 25 900 km above Earth and back down to 13 713 km.A total of 11 manoeuvres were performed across 17 days, gradually nudging the fifth satellite upwards at the lowest point of its orbit.As a result, it has risen more than 3500 km and its elliptical orbit has become more circular.“The manoeuvres were all normal, with excellent performance both in terms of thrust and direction,” explained Daniel Navarro-Reyes, ESA Galileo mission analyst.“The final orbit is as we targeted and is a tribute to the great professionalism of all the teams involved.”The commands were issued from the Galileo Control Centre by Space Opal, the Galileo operator, at Oberpfaffenhofen in Germany, guided by calculations from a combined flight dynamics team of ESA’s Space Operations Centre, ESOC, in Darmstadt, Germany and France’s CNES space agency.The commands were uploaded to the satellite via an extended network of ground stations, made up of Galileo stations and additional sites coordinated by France’s CNES space agency.Satellite manufacturer OHB also provided expertise throughout the recovery, helping to adapt the flight procedures.Until the manoeuvres started, the combined ESA–CNES team maintained the satellites pointing at the Sun using their gyroscopes and solar sensors. This kept the satellites steady in space but their navigation payloads could not be used reliably.In the new orbit, the satellite’s radiation exposure has also been greatly reduced, ensuring reliable performance for the long term.A suitable orbitThe revised, more circular orbit means the fifth satellite’s Earth sensor can be used continuously, keeping its main antenna oriented towards Earth and allowing its navigation payload to be switched on.Significantly, the orbit means that it will now overfly the same location on the ground every 20 days. This compares to a normal Galileo repeat pattern of every 10 days, effectively synchronising its ground track with the rest of the Galileo constellation.The navigation test campaignThe satellite’s navigation payload was activated on 29 November, to begin the full ‘In-Orbit Test’ campaign. This is being performed from ESA’s Redu centre in Belgium, where a 20 m-diameter antenna can study the strength and shape of the navigation signals at high resolution.“First, the various payload elements, especially the Passive Hydrogen Maser atomic clock, were warmed up, then the payload’s first ‘signal in space’ was transmitted,” said David Sanchez-Cabezudo, managing the test campaign.“The satellite-broadcast L-band navigation signal is monitored using the large antenna at Redu, with experts from OHB and Surrey Satellite Technology Ltd – the payload manufacturer, based in Guildford, UK – also on hand to analyse how it performs over time.”The first Galileo FOC navigation signal-in-space transmitting in the three Galileo frequency bands (E5/E6/L1) was tracked by Galileo Test User Receivers deployed at various locations in Europe, namely at Redu (B), ESTEC (NL), Weilheim (D) and Rome (I). The quality of the signal is good and in line with expectations.The Search And Rescue (SAR) payload will be switched on in few days in order to complement the in-orbit test campaign.The way forwardThe same recovery manoeuvres are planned for the sixth satellite, taking it into the same orbital plane but on the opposite side of Earth.The decision whether to use the two satellites for Navigation and SAR purposes as part of the Galileo constellation will be taken by the European Commission based on the test results.About GalileoGalileo is Europe’s own global satellite navigation system. It will consist of 30 satellites and their ground infrastructure.The definition phase and the development and In-Orbit Validation phase of the Galileo programme were carried out by the European Space Agency (ESA) and co-funded by ESA and the European Union. This phase has created a mini-constellation of four satellites and a reduced ground segment dedicated to validating the overall concept.The four satellites launched during the IOV phase form the core of the constellation that is being extended to reach Full Operational Capability (FOC).The FOC phase is fully funded by the European Commission. The Commission and ESA have signed a delegation agreement by which ESA acts as design and procurement agent on behalf of the Commission.Learn more about Galileo at: http://www.esa.int/Our_Activities/NavigationAbout the European Space AgencyThe European Space Agency (ESA) provides Europe’s gateway to space.ESA is an intergovernmental organisation, created in 1975, with the mission to shape the development of Europe’s space capability and ensure that investment in space delivers benefits to the citizens of Europe and the world.ESA has 20 Member States: Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Spain, Sweden, Switzerland and the United Kingdom, of whom 18 are Member States of the EU. Two other Member States of the EU, Hungary and Estonia, are likely soon to become new ESA Member States.ESA has Cooperation Agreements with six other Member States of the EU. Canada takes part in some ESA programmes under a Cooperation Agreement.ESA is also working with the EU on implementing the Galileo and Copernicus programmes.By coordinating the financial and intellectual resources of its members, ESA can undertake programmes and activities far beyond the scope of any single European country.ESA develops the launchers, spacecraft and ground facilities needed to keep Europe at the forefront of global space activities.Today, it develops and launches satellites for Earth observation, navigation, telecommunications and astronomy, sends probes to the far reaches of the Solar System and cooperates in the human exploration of space.Learn more about ESA at www.esa.intFor further information, please contact:ESA Media Relations OfficeEmail: [email protected]Tel: +33 1 53 69 72 99
ESA ops chief Reiter: 2 Galileo sats to launch ~ March 27 on Euro Soyuz, then 2 more on Sept Soyuz & final in Dec. No 2015 Ariane 5 Galileo.10:40am - 21 Jan 15https://mobile.twitter.com/pbdes/status/557835190660526080
The next Galileo launch after this evening's will be in December on a Soyuz launcher when another two satellites will be placed into orbit. In 2016, there will be one launch but using, for the first time, the Ariane 5 launcher, to place four satellites into orbit. In 2017, there will be two launches: a Soyuz launch orbiting two satellites, and an Ariane 5 launch, orbiting four satellites. A 30-satellite constellation will be in place by 2020, following ESA's slogan "30 satellites by 2020," with 10 satellites per plane with each plane having two spare satellites. This should be feasible as two satellites are now being manufactured every three months. Twenty-four satellites is the minimum for Galileo operational capability.
With Galileo-FOC M06, the 18 satellites necessary for IOC are now in orbit. For some reason, even though M06 has already put four new satllites on orbit, FM08 (Andriana) and FM09 (Liene) are still not commissioned into service. If they take more than six months to commission, IOC might end up in the second half of 2017.
Quote from: baldusi on 11/18/2016 11:39 amWith Galileo-FOC M06, the 18 satellites necessary for IOC are now in orbit. For some reason, even though M06 has already put four new satllites on orbit, FM08 (Andriana) and FM09 (Liene) are still not commissioned into service. If they take more than six months to commission, IOC might end up in the second half of 2017.The europeans can declare a Galileo IOC with only 14, not 18 satellites.
Across the 18 satellites now in orbit, nine clocks have stopped operating.Three are traditional rubidium devices; six are the more precise hydrogen maser instruments that were designed to give Galileo superior performance to the American GPS network.
All 18 spacecraft currently in space continue to operate, but one of them is now down to just two clocks.Most of the maser failures (5) have occurred on the satellites that were originally sent into orbit to validate the system, whereas all three rubidium stoppages are on the spacecraft that were subsequently launched to fill out the network.
It appears the rubidium failures "all seem to have a consistent signature, linked to probable short circuits, and possibly a particular test procedure performed on the ground".
The maser clock failures are said to be better understood, with two likely causes, the second of which has caused most grief.The Esa statement said this second scenario was "related to the fact that when some healthy [hydrogen maser] clocks are turned off for long periods, they do not restart due to a change in clock characteristics".
Esa staff at its technical centre, ESTEC, in the Netherlands are trying to isolate the cause the of failures - with the assistance of the clock (Spectratime of Switzerland) and satellite manufacturers (Airbus and Thales Alenia Space; OHB and SSTL). It is understood engineers have managed to restart another hydrogen clock that had stopped.
Galileo's atomic clocks by the numbers:- First four satellites launched were called In Orbit Validation (IOV) platforms- The next 14 were referred to as Full Operational Constellation (FOC) satellites- Three of the rubidium clock failures have occurred on Galileo's FOC satellites- Five of the hydrogen maser failures have occurred on the IOV spacecraft- One maser has stopped on an FOC satellite, giving nine failures in total- Three of the four IOVs are affected; two of the 14 FOC satellites are affected- Every satellite has two hydrogen maser clocks and two rubidium clocks- That means a total of 72 atomic clocks are currently in orbit- All Galileo satellites presently have at least two working clocks
Two further satellites have formally become part of Europe’s Galileo satnav system, broadcasting timing and navigation signals worldwide while also picking up distress calls across the planet.These are the 15th and 16th satellites to join the network, two of the four Galileos that were launched together by Ariane 5 on 17 November, and the first additions to the working constellation since the start of Galileo Initial Services on 15 December.
I'm a bit upset by the news that two Ariane 62 launchers have been ordered to launch two Galileo-satellites each. Inside the presentations from the Industry days, it is stated that launch service cost for A62 will be 85mln $; and for A64 130mln.A Vega-C could also orbit a single Galileo-satellite, this launch will cost about 35mln.My opinion is; that dual Galileo-satellite launch on A62 will be to expansive. They should launch 4x Galileo-satellites on each A62, if that's not possible, Launch 4x on A64 or one on Vega-C.2x on A62 @85mln = 42.5mln/Sat4x on A62 @85mln = 21.5mln/Sat4x on A64 @130mln=26.5mln/Sat
Quote from: Rik ISS-fan on 09/16/2017 12:09 amI'm a bit upset by the news that two Ariane 62 launchers have been ordered to launch two Galileo-satellites each. Inside the presentations from the Industry days, it is stated that launch service cost for A62 will be 85mln $; and for A64 130mln.A Vega-C could also orbit a single Galileo-satellite, this launch will cost about 35mln.My opinion is; that dual Galileo-satellite launch on A62 will be to expansive. They should launch 4x Galileo-satellites on each A62, if that's not possible, Launch 4x on A64 or one on Vega-C.2x on A62 @85mln = 42.5mln/Sat4x on A62 @85mln = 21.5mln/Sat4x on A64 @130mln=26.5mln/SatThe launch performance for A62 to the Galileo orbit is about 1700 kg according to the users guide. A quadruple Galileo launch on a A62 is therefore not possible.
The ESA Council, chaired by Jean-Yves Le Gall, met on 17–18 October in Paris, France.
The Director of Navigation, Paul Verhoef, presented the status of Galileo and plans for the Second Generation.With 18 satellites now in orbit, a full constellation will include eight more satellites to be launched by mid-2018, providing 99.8% global coverage.Hardware manufacturers like Samsung are including Galileo in their chipsets, the latest being Apple in the new generation of iPhones, unveiled last month.“A technical benchmarking of the different satellite navigation systems has demonstrated that Europe is already the ‘best in class’ in terms of precision,” commented ESA Director General Jan Woerner.Preparations are under way for the second generation of Galileo.
Galileo in smartphonesEurope’s Galileo satellite navigation system seen at work with commercially available Samsung S8+ smartphones.The sky has been full of Galileo signals since Europe’s satnav system began Initial Services at the end of last year, and a steady stream of Galileo-ready devices is finding its way to the marketplace.This has been underpinned with years of effort by ESA’s Navigation Laboratory, working with European manufacturers of mass-market satnav chips and receivers as well as ESA’s Galileo team in cooperation with the European Global Navigation Satellite System Agency.Industry responded to Initial Services by making the first Galileo-enabled smartphones available to the public. The list of available devices includes phones from Apple, BQ, Huawei, Samsung and Sony.
(so far - I don't know if the clock problems (?) on FOC FM-04/GSAT 0204 is permanent),
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2017045DATE GENERATED (UTC): 2017-11-23 17:45NAGU TYPE: GENERALNAGU NUMBER: 2017045NAGU SUBJECT: GSAT0204 REMOVED FROM ACTIVE SERVICE FOR CONSTELLATION MANAGEMENT PURPOSESNAGU REFERENCED TO: N/ASTART DATE EVENT (UTC): 2017-12-08 07:30END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0204EVENT DESCRIPTION: GALILEO SATELLITE GSAT0204 NOT CONTRIBUTING TO SERVICE PROVISION (ALL SIGNALS) FROM 2017-12-08 UNTIL FURTHER NOTICE
Yes GSAT0201/0202 can be used by receiver with ephemeris but not the almanac from current ICD version as there is not enough range in one or the orbit parameters. It's possible to update the Galileo ICD to increase the parameter range which would allow them in the almanac but GNSS receivers will need a firmware update to recognise them.Decent GNSS receivers would still find them without almanac but the cell phone receivers might not. The low power chips used in phones often do not run full PRN searches as they rely on the almanac downloaded over the Internet.I think even with a few satellites missing the availability will be in high 90s percentage. Most receivers also use GPS so I doubt it will be an issue for the several minutes a day there isn't 4 Galileo visible.
Galileo satellites prove Einstein's Relativity Theory to highest accuracy yet...gathered from more than a thousand days of data obtained from the pair of Galileo satellites in elongated orbits.https://www.esa.int/Our_Activities/Navigation/Galileo_satellites_prove_Einstein_s_Relativity_Theory_to_highest_accuracy_yet
Latest update from Galileo om the four satellites launched in July: http://www.esa.int/Our_Activities/Navigation/Four_new_Galileos_join_Europe_s_largest_satellite_constellationSo far my receivers still show them as unhealthy and https://www.gsc-europa.eu/system-status/Constellation-Information still shows them under commissioning.
GSAT0219 E36 PHM USABLE 2019002 USABINIT USABLE AS FROM 2019-02-11GSAT0220 E13 PHM USABLE 2019004 USABINIT USABLE AS FROM 2019-02-11GSAT0221 E15 PHM USABLE 2019005 USABINIT USABLE AS FROM 2019-02-11GSAT0222 E33 PHM USABLE 2019003 USABINIT USABLE AS FROM 2019-02-11
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2019026DATE GENERATED (UTC): 2019-07-13 20:15NAGU TYPE: GENERALNAGU NUMBER: 2019026NAGU SUBJECT: SERVICE OUTAGENAGU REFERENCED TO: 2019025START DATE EVENT (UTC): 2019-07-12 01:50END DATE EVENT (UTC): N/ASATELLITE AFFECTED: ALLEVENT DESCRIPTION: UNTIL FURTHER NOTICE, USERS EXPERIENCE A SERVICE OUTAGE. THE SIGNALS ARE NOT TO BE USED.
It's poor design that a ground segment failure at a single location instantly brings down the whole system.
The GPS documentation mentions that GPS satellites are designed to operate autonomously for over 30 days without ground systems presumably driven by Cold War concerns of nuclear conflict when the system was built. However this has not been used as there has never been such a total failure.
New data has started to be uploaded to the satellite, but marked as unhealthy.https://www.gsc-europa.eu/news/galileo-initial-service-recovery-actions-underway
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2019033DATE GENERATED (UTC): 2019-10-30 17:45 NAGU TYPE: UNP_UNUFNNAGU NUMBER: 2019033NAGU SUBJECT: UNAVAILABLE FROM 2019-10-29 UNTIL FURTHER NOTICENAGU REFERENCED TO: N/ASTART DATE EVENT (UTC): 2019-10-29 18:49END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0101SPACE VEHICLE ID: 11SIGNAL(S) AFFECTED: ALL EVENT DESCRIPTION: GALILEO SATELLITE GSAT0101 (ALL SIGNALS) IS UNAVAILABLE SINCE 2019-10-29 BEGINNING 18:49 UTC UNTIL FURTHER NOTICE.
First G1G (Galileo First Generation) Batch 3 Sat payload arrived at OHB from SSTL. Name is Patrick.https://www.sstl.co.uk/media-hub/latest-news/2019/first-galileo-batch-3-payload-patrick%E2%80%9D-reaches-ohb
From a slightly more in depth article:"The technical incident originated by an equipment malfunction in the Galileo ground infrastructure, affecting the calculation of time and orbit predictions, and which are used to compute the navigation message. The malfunction affected different elements on the ground facilities.[...] We will set an Independent Inquiry Board to identify the root causes of the major incident. "via: https://www.gsa.europa.eu/newsroom/news/galileo-initial-services-have-now-been-restored
ESA and the European Commission preorder four more Ariane 6 launchesQuoteThe European Space Agency (ESA) has finalized its preorder for four more launches on Ariane 6, along with an initial payment.Using Ariane 62, the light version of the new European launcher, these missions will be carried out on behalf of the European Commission to continue the deployment and operational ramp-up of the high-performance Galileo satellite navigation system.Arianespace announced today a preorder from the European Space Agency (ESA), on behalf of the European Commission (DG Grow), for four launches using the Ariane 6 rocket. Planned to start in January 2022, these launches will orbit eight satellites from Batch 3 to support the final deployment of the Galileo constellation and the replacement of certain satellites.These four launches reserved for Ariane 62 will be confirmed after the European Commission finalizes its budget for the period 2021-2027, which covers these launches. The terms and conditions of this order have already been approved by ESA and the European Commission, and an initial payment has been made for this preorder.QuoteAriane 6’s backlog of orders already includes nine iconic institutional and commercial missions, clearly confirming the European launcher’s ability to adapt to a fast-changing market.The nine orders include two scientific missions for ESA, Euclid (also compatible with Soyuz) and JUICE (also compatible with Ariane 5), CSO3 for the French Ministry of the Armed Forces, two Galileo launches (also compatible with Soyuz) for ESA on behalf of the European Commission, and four for the private operators OneWeb, Viasat and Eutelsat.
The European Space Agency (ESA) has finalized its preorder for four more launches on Ariane 6, along with an initial payment.Using Ariane 62, the light version of the new European launcher, these missions will be carried out on behalf of the European Commission to continue the deployment and operational ramp-up of the high-performance Galileo satellite navigation system.Arianespace announced today a preorder from the European Space Agency (ESA), on behalf of the European Commission (DG Grow), for four launches using the Ariane 6 rocket. Planned to start in January 2022, these launches will orbit eight satellites from Batch 3 to support the final deployment of the Galileo constellation and the replacement of certain satellites.These four launches reserved for Ariane 62 will be confirmed after the European Commission finalizes its budget for the period 2021-2027, which covers these launches. The terms and conditions of this order have already been approved by ESA and the European Commission, and an initial payment has been made for this preorder.
Ariane 6’s backlog of orders already includes nine iconic institutional and commercial missions, clearly confirming the European launcher’s ability to adapt to a fast-changing market.The nine orders include two scientific missions for ESA, Euclid (also compatible with Soyuz) and JUICE (also compatible with Ariane 5), CSO3 for the French Ministry of the Armed Forces, two Galileo launches (also compatible with Soyuz) for ESA on behalf of the European Commission, and four for the private operators OneWeb, Viasat and Eutelsat.
Order for another 12 Galileo satellites goes to Airbus and Thales Alenia, OHB lost the competition.https://www.faz.net/aktuell/wirtschaft/fuchs-ueber-das-aus-fuer-ohb-bei-den-galileo-satelliten-17158166.html
uhhhh what? They chose the vendor for the better value and price? Isn't that what they were supposed to do?
More than two billion smartphones, with users worldwide are now making use of Europe's Galileo navigation satellite constellation.
Quote from: jacqmans on 04/19/2021 08:40 amMore than two billion smartphones, with users worldwide are now making use of Europe's Galileo navigation satellite constellation. I don't believe this for one second, that's completely preposterous!
There aren't "more than two billion" smartphones used for GPS navigation worldwide, I repeat that is preposterous.There may be billions of smartphones equipped with the chip but all the rest is an obvious overstatement.Where are you from?
More than two billion smartphones, with users worldwide are now making use of Europe's Galileo navigation satellite constellation. But how do satellites thousands of kilometres away in space manage to tell you where you are and where you're going? Simply being so far away is part of the answer - learn the details of the world's most precise navigation system in this new video.
It appears quite a lot of explanations sorta skip over important practical details. Lots of pointers go back to _Theory and Practice of Error Control Codes, R. E. Blahut_ (1983).
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2021015DATE GENERATED (UTC): 2021-09-21 18:00NAGU TYPE: USABLENAGU NUMBER: 2021015NAGU SUBJECT: USABLE AS FROM 2021-09-21NAGU REFERENCED TO: 2021012START DATE EVENT (UTC): 2021-09-21 12:38END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0210SPACE VEHICLE ID: 01SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0210 (ALL SIGNALS) IS USABLE SINCE/AS OF 2021-09-21 BEGINNING 12:38 UTC. PAYLOAD ON PHM CLOCK. GALILEO SATELLITE GSAT0210 (ALL SIGNALS) WAS UNAVAILABLE FROM 2021-09-05 BEGINNING 06:00 UTC.
An innovative GPS and Galileo receiver will provide positioning services towards the Moon and on its surface.The project NEIL (Navigation Early Investigation on Lunar surface) will experiment satellite-based positioning on the lunar surface. The project is at the center of an agreement between the Italian Space Agency (ASI) and NASA, linked to the CLPS 19-D mission (NASA’s Commercial Lunar Payload Service, Task Order 19) in which the US Space Agency is planning to land to the “Mare Crisium” basin of the Moon in 2023. The NEIL payload, subject matter of the contract signed between ASI and Qascom Srl, will be integrated into the experimentation called Lunar GNSS Receiver Experiment (LuGRE), an ASI/NASA cooperation framework with the objective to develop activities in lunar and cislunar environments.For the first time in history, the positioning based on GPS and Galileo signals will be tested at almost 400.000 km distance from Earth. This is the first experiment of its kind considering that the previous limit was experimented by NASA at a distance of approximately 200.000 km. The mission, in addition to the NEIL payload, will also bring to the Moon other 9 scientific experiments. Planned in 2023, it is foreseen to be launched with Falcon 9 of Space X.
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022005DATE GENERATED (UTC): 2022-02-04 12:45NAGU TYPE: UNP_UNUFNNAGU NUMBER: 2022005NAGU SUBJECT: UNAVAILABLE FROM 2022-02-03 UNTIL FURTHER NOTICENAGU REFERENCED TO: N/ASTART DATE EVENT (UTC): 2022-02-03 23:44END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0103SPACE VEHICLE ID: 19SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0103 (ALL SIGNALS) IS UNAVAILABLE SINCE 2022-02-03 BEGINNING 23:44 UTC UNTIL FURTHER NOTICE.
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022008DATE GENERATED (UTC): 2022-02-21 10:45NAGU TYPE: USABLENAGU NUMBER: 2022008NAGU SUBJECT: USABLE AS FROM 2022-02-20NAGU REFERENCED TO: 2022007START DATE EVENT (UTC): 2022-02-20 12:51END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0103SPACE VEHICLE ID: 19SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0103 (ALL SIGNALS) IS USABLE SINCE/AS OF 2022-02-20 BEGINNING 12:51 UTC. PAYLOAD ON RAFS CLOCK. GALILEO SATELLITE GSAT0103 (ALL SIGNALS) WAS UNAVAILABLE FROM 2022-02-03 BEGINNING 23:44 UTC.
Problems with GSAT0210 (FOC-FM10) SVID E01.The stupid thing is, the satellite is in plane A. The other defective satellites GSAT0104 in plane C and GSAT0204 in plane B.So let's hope that GSAT0210 can be used again soon. Otherwise it will take longer for a replacement to be ready for use....
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022018DATE GENERATED (UTC): 2022-05-26 09:45NAGU TYPE: USABLENAGU NUMBER: 2022018NAGU SUBJECT: USABLE AS FROM 2022-05-25NAGU REFERENCED TO: 2022015START DATE EVENT (UTC): 2022-05-25 16:11END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0210SPACE VEHICLE ID: 01SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0210 (ALL SIGNALS) IS USABLE SINCE/AS OF 2022-05-25 BEGINNING 16:11 UTC. PAYLOAD ON PHM CLOCK. GALILEO SATELLITE GSAT0210 (ALL SIGNALS) WAS UNAVAILABLE FROM 2022-04-29 BEGINNING 02:38 UTC.
3 weeks planned maintenance on GSAT 0103.This satellite often causes problems lately.Galileo needs a launch vehicle, now!Would a Falcon 9 launch work? The orbit is challenging. ASDS landing or expendable? Could the 2nd stage be removed from Galileo orbit? https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2022025
Quote from: GWR64 on 07/02/2022 06:58 pm3 weeks planned maintenance on GSAT 0103.This satellite often causes problems lately.Galileo needs a launch vehicle, now!Would a Falcon 9 launch work? The orbit is challenging. ASDS landing or expendable? Could the 2nd stage be removed from Galileo orbit? https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2022025If transport for the satellites can be arranged. There are at least 2 spare sets of Falcon Heavies available for whatever challenging orbit is required. If the Falcon 9 lacks sufficient performance.
<snip>OHB suggested the Falcon-9, which is why I asked.The satellites can be flown from Kourou (2 are there) or from Belgium to Cape Canaveral, why should that be a problem?A Falcon-9 Heavy can launch this for sure. This would allow the remaining 4 gen. 1 satellites for orbit “C” to be launched together.But are available Falcon-9 Heavy really in stock?.....
3 weeks planned maintenance on GSAT 0103.This satellite often causes problems lately....https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2022025
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022032DATE GENERATED (UTC): 2022-08-05 12:15NAGU TYPE: USABLENAGU NUMBER: 2022032NAGU SUBJECT: USABLE AS FROM 2022-08-05NAGU REFERENCED TO: 2022029START DATE EVENT (UTC): 2022-08-05 07:51END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0103SPACE VEHICLE ID: 19SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0103 (ALL SIGNALS) IS USABLE SINCE/AS OF 2022-08-05 BEGINNING 07:51 UTC. PAYLOAD ON RAFS CLOCK. GALILEO SATELLITE GSAT0103 (ALL SIGNALS) WAS UNAVAILABLE FROM 2022-07-02 BEGINNING 12:41 UTC.
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022030DATE GENERATED (UTC): 2022-08-02 14:45NAGU TYPE: USABLENAGU NUMBER: 2022030NAGU SUBJECT: USABLE AS FROM 2022-08-01NAGU REFERENCED TO: 2022026START DATE EVENT (UTC): 2022-08-01 16:00END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0223SPACE VEHICLE ID: 34SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0223 (ALL SIGNALS) IS USABLE SINCE/AS OF 2022-08-01 BEGINNING 16:00 UTC. PAYLOAD ON PHM CLOCK. GALILEO SATELLITE GSAT0223 (ALL SIGNALS) WAS UNAVAILABLE FROM 2022-07-11 BEGINNING 04:51 UTC UNTIL 2022-07-30 ENDING 15:00 UTC, FROM 2022-07-30 BEGINNING 18:00 UTC UNTIL 2022-07-31 ENDING 19:00 UTC AND FROM 2022-08-01 BEGINNING 01:00 UTC UNTIL 2022-08-01 ENDING 16:00 UTC.
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022031DATE GENERATED (UTC): 2022-08-05 11:45NAGU TYPE: PLN_OUTAGENAGU NUMBER: 2022031NAGU SUBJECT: PLANNED OUTAGE FROM 2022-08-11 UNTIL 2022-08-29NAGU REFERENCED TO: N/ASTART DATE EVENT (UTC): 2022-08-11 00:00END DATE EVENT (UTC): 2022-08-29 17:00SATELLITE AFFECTED: GSAT0223SPACE VEHICLE ID: 34SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0223 (ALL SIGNALS) WILL BE UNAVAILABLE FROM 2022-08-11 BEGINNING 00:00 UTC. OUTAGE RECOVERY ESTIMATED ON 2022-08-29 17:00 UTC.
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022027DATE GENERATED (UTC): 2022-07-07 15:30NAGU TYPE: GENERAL (NOTICE)NAGU NUMBER: 2022027NAGU SUBJECT: GSAT0224 CONTRIBUTION TO I/NAV MESSAGE TESTING ACTIVITIESNAGU REFERENCED TO: 2021024START DATE EVENT (UTC): 2022-07-11 04:45END DATE EVENT (UTC): 2022-08-29 17:00SATELLITE AFFECTED: GSAT0224EVENT DESCRIPTION: GSAT0224 WILL BE INVOLVED IN I/NAV MESSAGE TESTING ACTIVITIES AND, THEREFORE, DURING THIS TIME USERS WILL OBSERVE INTERMITTENT PERIODS OF UNHEALTHY/ HEALTHY SIS. IT IS REMINDED THAT GSAT0224 IS NOT YET PART OF THE OPERATIONAL CONSTELLATION UNTIL THE RELEVANT USABINIT NAGU IS ISSUED. USERS SHALL REFER TO SERVICE NOTICE #10.
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022033DATE GENERATED (UTC): 2022-08-29 16:15NAGU TYPE: USABLENAGU NUMBER: 2022033NAGU SUBJECT: USABLE AS FROM 2022-08-29NAGU REFERENCED TO: 2022031START DATE EVENT (UTC): 2022-08-29 13:51END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0223SPACE VEHICLE ID: 34SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0223 (ALL SIGNALS) IS USABLE SINCE/AS OF 2022-08-29 BEGINNING 13:51 UTC. PAYLOAD ON PHM CLOCK. GALILEO SATELLITE GSAT0223 (ALL SIGNALS) WAS UNAVAILABLE FROM 2022-08-11 BEGINNING 00:00 UTC.
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022034DATE GENERATED (UTC): 2022-08-29 16:30NAGU TYPE: USABINITNAGU NUMBER: 2022034NAGU SUBJECT: USABLE AS FROM 2022-08-29NAGU REFERENCED TO: 2021024START DATE EVENT (UTC): 2022-08-29 13:51END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0224SPACE VEHICLE ID: 10SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0224 (ALL SIGNALS) IS USABLE SINCE/AS OF 2022-08-29 BEGINNING 13:51 UTC. GSAT0224 IS POSITIONED IN SLOT B15 OF THE CONSTELLATION. PAYLOAD ON PHM CLOCK.
Problems with GSAT0210 (FOC-FM10) SVID E01....https://www.gsc-europa.eu/sites/default/files/sites/all/files/Galileo-service-notice-07-v1.0.pdfhttps://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2021012
...Unfortunately, GSAT 0210 has been out of service for 2 weeks. https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2022015...
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022035DATE GENERATED (UTC): 2022-09-01 16:30NAGU TYPE: UNP_UNUFNNAGU NUMBER: 2022035NAGU SUBJECT: UNAVAILABLE FROM 2022-08-31 UNTIL FURTHER NOTICENAGU REFERENCED TO: N/ASTART DATE EVENT (UTC): 2022-08-31 19:42END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0210SPACE VEHICLE ID: 01SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0210 (ALL SIGNALS) IS UNAVAILABLE SINCE 2022-08-31 BEGINNING 19:42 UTC UNTIL FURTHER NOTICE.
Galileo E01@1: 🚨 clock jump of 58.00 nanoseconds (= 19.4 meters)7:02 PM · Oct 7, 2022·galmonmon
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022054DATE GENERATED (UTC): 2022-12-19 17:00NAGU TYPE: USABLENAGU NUMBER: 2022054NAGU SUBJECT: USABLE AS FROM 2022-12-19NAGU REFERENCED TO: 2022035START DATE EVENT (UTC): 2022-12-19 15:36END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0210SPACE VEHICLE ID: 01SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0210 (ALL SIGNALS) IS USABLE SINCE/AS OF 2022-12-19 BEGINNING 15:36 UTC. PAYLOAD ON RAFS CLOCK. GALILEO SATELLITE GSAT0210 (ALL SIGNALS) WAS UNAVAILABLE FROM 2022-08-31 BEGINNING 19:42 UTC.
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2023010DATE GENERATED (UTC): 2023-02-20 20:05NAGU TYPE: UNP_UNUFNNAGU NUMBER: 2023010NAGU SUBJECT: UNAVAILABLE FROM 2023-02-20 UNTIL FURTHER NOTICENAGU REFERENCED TO: N/ASTART DATE EVENT (UTC): 2023-02-20 18:54END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0220SPACE VEHICLE ID: SV13SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0220 (ALL SIGNALS) IS UNAVAILABLE SINCE 2023-02-20 BEGINNING 18:54 UTC UNTIL FURTHER NOTICE.
19Feb @ 21:54UTC Galileo satellite GSAT0220 experienced an anomaly on the broadcast of its signal in the E1 frequency band.In line w/ the standard procedures, the broadcast from this🛰️was interrupted by the operator &will remain so for the duration of the anomaly investigations.
Further info will be communicated once the source of the anomaly and the course to signal recovery have been determined.The Galileo constellation minimum service performance has not been affected.For more information:https://www.gsc-europa.eu/sites/default/files/sites/all/files/Galileo-service-notice-14-v1.0.pdf
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2023014DATE GENERATED (UTC): 2023-03-11 08:15NAGU TYPE: USABLENAGU NUMBER: 2023014NAGU SUBJECT: USABLE AS FROM 2023-03-11NAGU REFERENCED TO: 2023010START DATE EVENT (UTC): 2023-03-11 06:36END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0220SPACE VEHICLE ID: 13SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0220 (ALL SIGNALS) IS USABLE SINCE/AS OF 2023-03-11 BEGINNING 06:36 UTC. PAYLOAD ON PHM CLOCK. GALILEO SATELLITE GSAT0220 (ALL SIGNALS) WAS UNAVAILABLE FROM 2023-02-20 BEGINNING 18:54 UTC.
...🇪🇺 EUSPA - EU Agency for the Space Programme@EU4Space·21. Feb.Antwort an @EU4SpaceFurther info will be communicated once the source of the anomaly and the course to signal recovery have been determined....
good/bad news: GSAT 0210, E01 is back in operation. However, a rubidium atomic clock is now used. That probably means both hydrogen masers are no longer usable. The rubidium atomic clocks are accurate enough in my opinion, no problem.But GSAT 0210 was launched in May 2016, so before it was discovered in early 2017 that faulty rubidium atomic clocks were installed in (some/all?) FOC satellites, which can fail quickly.
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2023019DATE GENERATED (UTC): 2023-03-23 20:00NAGU TYPE: UNP_UNUFNNAGU NUMBER: 2023019NAGU SUBJECT: UNAVAILABLE FROM 2023-03-23 UNTIL FURTHER NOTICENAGU REFERENCED TO: N/ASTART DATE EVENT (UTC): 2023-03-23 17:37END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0210SPACE VEHICLE ID: 01SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0210 (ALL SIGNALS) IS UNAVAILABLE SINCE 2023-03-23 BEGINNING 17:37 UTC UNTIL FURTHER NOTICE.
Galileo E01@1: 🚨 clock jump of 41.70 nanoseconds (= 13.9 meters)
Oh oh [...]one of several
Quote from: GWR64 on 03/24/2023 05:26 pmOh oh [...]one of severalTesting testing...https://mobile.twitter.com/GalileoSats/status/1640282783770636289
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2023023DATE GENERATED (UTC): 2023-03-29 17:50NAGU TYPE: USABLENAGU NUMBER: 2023023NAGU SUBJECT: USABLE AS FROM 2023-03-29NAGU REFERENCED TO: 2023019START DATE EVENT (UTC): 2023-03-29 16:18END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0210SPACE VEHICLE ID: 01SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0210 (ALL SIGNALS) IS USABLE SINCE/AS OF 2023-03-29 BEGINNING 16:18 UTC. PAYLOAD ON RAFS CLOCK. GALILEO SATELLITE GSAT0210 (ALL SIGNALS) WAS UNAVAILABLE FROM 2023-03-23 BEGINNING 17:37 UTC.
The Commission reckons only SpaceX's Falcon 9 heavy launcher and United Launch Alliance's Vulcan system are up to the job of sending the EU's new geo-navigation Galileo satellites — which weigh around 700 kilograms each — into orbit.
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2023032DATE GENERATED (UTC): 2023-04-30 08:30NAGU TYPE: UNP_UNUFNNAGU NUMBER: 2023032NAGU SUBJECT: UNAVAILABLE FROM 2023-04-30 UNTIL FURTHER NOTICENAGU REFERENCED TO: N/ASTART DATE EVENT (UTC): 2023-04-30 00:52END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0210SPACE VEHICLE ID: 01SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0210 (ALL SIGNALS) IS UNAVAILABLE SINCE 2023-04-30 BEGINNING 00:52 UTC UNTIL FURTHER NOTICE.
Politico article about Galileo launches on Falcon 9 and/or Vulcan: EU turns to Elon Musk to replace stalled French rocket QuoteThe Commission reckons only SpaceX's Falcon 9 heavy launcher and United Launch Alliance's Vulcan system are up to the job of sending the EU's new geo-navigation Galileo satellites — which weigh around 700 kilograms each — into orbit.
Quote from: jpo234 on 04/18/2023 12:30 pmPolitico article about Galileo launches on Falcon 9 and/or Vulcan: EU turns to Elon Musk to replace stalled French rocket QuoteThe Commission reckons only SpaceX's Falcon 9 heavy launcher and United Launch Alliance's Vulcan system are up to the job of sending the EU's new geo-navigation Galileo satellites — which weigh around 700 kilograms each — into orbit.Checked this on the Nasa Launch Vehicle Performance website. However, I do not know exactly which C3 energy theGalileo orbit corresponds. So I can only guess.The Falcon Heavy (Recovery) and the Vulcan VC2 come into question for Galileo launches.Both could probably lift 4 Galileo-satellites + dispenser (~3300 kg) into the intended orbit. In terms of performance, they are close to each other.For Falcon-9 ASDS or expendable, I can't find data in this range.
Quote from: GWR64 on 05/18/2023 08:25 amQuote from: jpo234 on 04/18/2023 12:30 pmPolitico article about Galileo launches on Falcon 9 and/or Vulcan: EU turns to Elon Musk to replace stalled French rocket QuoteThe Commission reckons only SpaceX's Falcon 9 heavy launcher and United Launch Alliance's Vulcan system are up to the job of sending the EU's new geo-navigation Galileo satellites — which weigh around 700 kilograms each — into orbit.Checked this on the Nasa Launch Vehicle Performance website. However, I do not know exactly which C3 energy theGalileo orbit corresponds. So I can only guess.The Falcon Heavy (Recovery) and the Vulcan VC2 come into question for Galileo launches.Both could probably lift 4 Galileo-satellites + dispenser (~3300 kg) into the intended orbit. In terms of performance, they are close to each other.For Falcon-9 ASDS or expendable, I can't find data in this range.Wikipedia lists the orbit as circular at 23222 km altitude. To reach this apogee from LEO, you need to add about 2185 m/s. When you arive at the top, you are going 2212 m/s, and need to speed up to 3670 m/s, so need to add 1458 m/s. So from LEO, you need to add about 2185+1458 m/s, or about 3643 m/s total. This same total, all applied at LEO, would lead to escape at about C3 = 9 km^2/sec^2.According the the NASA web site, the F9 can lift 2325 kg to this orbit. (2-3 satellites). They don't give a figure for fully expendable, but guesses make it look like about 3700 kg, so 4 satellites. VC2 can lift 4865 kg (6 satellites) and FH recovery can lift 5275 kg (6-7 satellites).
The ULA states 3900 kg for VC2 for MEO (Medium Earth Orbit) = 20,368 km circular at 55 deg (GPS)So I assumed the C3 value is higher.https://www.ulalaunch.com/rockets/vulcan-centaur
ESA, on behalf of the European Commission, has signed a €12 million contract with Leonardo S.p.A (Italy) and Istituto Nazionale di Ricerca Metrologica to design and develop a new ultra-precise atomic clock technology for Galileo.
Under this contract, the consortium will design, manufacture, test and qualify an engineering qualification model, after which an experimental flight model is expected to fly on a Galileo Second Generation satellite for early in-orbit verification. After initial tests, the new clock will still be monitored to study its reliability and long-term lifetime. Experimental clocks will fly in addition to the operational clocks that are used in the provision of Galileo services.
...It was obviously the last task of the partially defective GSAT0104, which is now to be decommissioned.https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2024015...
Cross post: Official Galileo system NAGU (Notice Advisory to Galileo Users) for today’s Falcon 9 launch:DATE GENERATED (UTC): 2024-04-28 05:20NAGU TYPE: GENERAL (LAUNCH)NAGU NUMBER: 2024020NAGU SUBJECT: LAUNCH OF GSAT0225 AND GSAT0227NAGU REFERENCED TO: N/ASTART DATE EVENT (UTC): 2024-04-28 00:34END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0225, GSAT0227EVENT DESCRIPTION: GALILEO SATELLITES GSAT0225 (SVID 29) AND GSAT0227 (SVID 06) WERE LAUNCHED ON 2024-04-28 AT 00:34 UTC. GSAT0225 AND GSAT0227 ARE PLANNED TO BE POSITIONED IN SLOTS C05 AND C12 OF THE CONSTELLATION. USERS WILL BE ADVISED OF AVAILABILITY OF SIGNALS FOLLOWING COMPLETION OF COMMISSIONING ACTIVITIES.
Thierry Breton@ThierryBreton2 new #Galileo satellites successfully launched last night 🛰️Awaiting Ariane6, the 2024 launches are crucial for Galileo’s resilience, robustness and #continuity of its civilian & military applications.Galileo deployment will continue in 2025.
In all aspects this is a painful situation for the European space industry.The two launches of a pair of Galileo satellites were ment to take place in 2022 on two Soyuz-ST launches. Because Russia invaded Ukraine, Europe imposed financial sanctions on Russia. The result of these sanctions is the blockage of payment of services provided by Starsem, for the Soyuz-ST launches. Thus Soyuz-ST (launched from France Guiana) is blocked financially....
This achievement paves the way for the start of the flight model assembly and integration phase in Q4 2024. First Satellite Compatibility Test Campaigns with the Ground Segment are also expected by end of 2024, in order to ensure full satellite acceptance in the years to come.
Object C from launch 12 is probably GSAT0225, has already significantly increased its orbit and is getting closer to slot C05.Object A should then be GSAT0227, has to drift longer to C12, I think. I didn't fully understand the strategy behind it.GSAT0225 is probably the priority.https://celestrak.org/NORAD/elements/table.php?INTDES=2024-079
Quote from: GWR64 on 05/17/2024 05:05 pmObject C from launch 12 is probably GSAT0225, has already significantly increased its orbit and is getting closer to slot C05.Object A should then be GSAT0227, has to drift longer to C12, I think. I didn't fully understand the strategy behind it.GSAT0225 is probably the priority.https://celestrak.org/NORAD/elements/table.php?INTDES=2024-079Most sources on the internet say object A is GSAT0225 and C is GSAT0227. I don't know the original source.The opposite of my prediction.I'm going by the order in the NAGU and the position of the satellites. Maybe I'm wrong.2024-079A is drifting quickly and is currently passing GSAT0209 on slot C02 on the way to C12.2024-079C is almost in the middle between GSAT0103 on C04 and GSAT0207 on C06. It is drifting very, very slowly.
EUSPA - EU Agency for the Space Programme44.934 Follower:innen2 Tage🛰️ L12 satellites in their final orbit allocation! On June 24th, the two newest satellites in the Galileo constellation reached their final position in the Galileo Plane C, one of the three orbital planes in the Galileo system. After a successful Launch and Early Orbit Phase (LEOP), completed with Drift Start manoeuvres on May 8th, the satellites entered their drifting phase. During this time, they split apart from the injection orbit and drift separately across several weeks until reaching their designated orbital slots in Galileo Plane C. After reaching their approximate targets, three manoeuvres were performed on each satellite to stop the drifting close to the target position, followed by two manoeuvres to finely position them in their box at the orbital slot assigned for their operations. The Galileo L12 satellites are now allocated in Plane C, with GSAT0225 in prime slot C5 and GSAT0227 in auxiliary slot C12. Once their In-Orbit Validation campaign comes to an end by end of August 2024, the satellites will contribute to the Galileo services provision and enter into service along with the current constellation....
Ok, there was something hidden. anywayhttps://www.linkedin.com/posts/euspa_l12-satellites-in-their-final-orbit-allocation-activity-7214538897492500480-Uig7QuoteEUSPA - EU Agency for the Space Programme44.934 Follower:innen2 Tage🛰️ L12 satellites in their final orbit allocation! On June 24th, the two newest satellites in the Galileo constellation reached their final position in the Galileo Plane C, one of the three orbital planes in the Galileo system. After a successful Launch and Early Orbit Phase (LEOP), completed with Drift Start manoeuvres on May 8th, the satellites entered their drifting phase. During this time, they split apart from the injection orbit and drift separately across several weeks until reaching their designated orbital slots in Galileo Plane C. After reaching their approximate targets, three manoeuvres were performed on each satellite to stop the drifting close to the target position, followed by two manoeuvres to finely position them in their box at the orbital slot assigned for their operations. The Galileo L12 satellites are now allocated in Plane C, with GSAT0225 in prime slot C5 and GSAT0227 in auxiliary slot C12. Once their In-Orbit Validation campaign comes to an end by end of August 2024, the satellites will contribute to the Galileo services provision and enter into service along with the current constellation....
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2014014DATE GENERATED (UTC): 2014-05-28 09:45NAGU TYPE: UNP_UNUFNNAGU NUMBER: 2014014NAGU SUBJECT: UNAVAILABLE FROM 2014-05-27 UNTIL FURTHER NOTICENAGU REFERENCED TO: N/ASTART DATE EVENT (UTC): 2014-05-27 12:30END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0104SPACE VEHICLE ID: 20SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0104 (ALL SIGNALS) IS UNAVAILABLE SINCE 2014-05-27 BEGINNING 12:30 UTC UNTIL FURTHER NOTICE.
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2024033DATE GENERATED (UTC): 2024-09-05 14:00NAGU TYPE: USABINITNAGU NUMBER: 2024033NAGU SUBJECT: USABLE AS FROM 2024-09-05NAGU REFERENCED TO: 2024020START DATE EVENT (UTC): 2024-09-05 10:21END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0225SPACE VEHICLE ID: 29SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0225 (ALL SIGNALS) IS USABLE SINCE/AS OF 2024-09-05 BEGINNING 10:21 UTC. GSAT0225 IS POSITIONED IN SLOT C05 OF THE CONSTELLATION. PAYLOAD ON PHM CLOCK.
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2024034DATE GENERATED (UTC): 2024-09-05 14:30NAGU TYPE: USABINITNAGU NUMBER: 2024034NAGU SUBJECT: USABLE AS FROM 2024-09-05NAGU REFERENCED TO: 2024020START DATE EVENT (UTC): 2024-09-05 12:11END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0227SPACE VEHICLE ID: 06SIGNAL(S) AFFECTED: ALLEVENT DESCRIPTION: GALILEO SATELLITE GSAT0227 (ALL SIGNALS) IS USABLE SINCE/AS OF 2024-09-05 BEGINNING 12:11 UTC. GSAT0227 IS POSITIONED IN SLOT C12 OF THE CONSTELLATION. PAYLOAD ON PHM CLOCK.
How many more SpaceX launches are planned?I saw in the announcement of GSAT0225 and 0227 going healthy that there are 8 more gen 1 sats to be launched, and after todays launch that leaves 6.So 3 more launches with SpaceX? Or will Ariane 6 be ready before they are all launched?
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2024038DATE GENERATED (UTC): 2024-09-18 06:30NAGU TYPE: GENERAL (LAUNCH)NAGU NUMBER: 2024038NAGU SUBJECT: LAUNCH OF GSAT0226 AND GSAT0232NAGU REFERENCED TO: N/ASTART DATE EVENT (UTC): 2024-09-17 22:50END DATE EVENT (UTC): N/ASATELLITE AFFECTED: GSAT0226, GSAT0232EVENT DESCRIPTION: GALILEO SATELLITES GSAT0226 (SVID 23) AND GSAT0232 (SVID 16) WERE LAUNCHED ON 2024-09-17 AT 22:50 UTC. GSAT0226 AND GSAT0232 ARE PLANNED TO BE POSITIONED IN SLOTS A02 AND A17 OF THE CONSTELLATION. USERS WILL BE ADVISED OF AVAILABILITY OF SIGNALS FOLLOWING COMPLETION OF COMMISSIONING ACTIVITIES.
