An Ariane 5 rocket, ... VA253, on Saturday. “Some of the appendages and antennas and those sorts of things have to deploy before it begins doing its orbit raising.“So the first stage of our orbit raising involves a couple of small hydrazine chemical propulsion thruster firings to begin the orbit-raising. So that simplifies the operation considerably.”After the Ariane 5 upper stage cuts off once reaching the desired 250 x 35,735 km Geostationary Transfer Orbit target, Galaxy 30 will be released from MEV-2 at T+27 minutes 47 seconds.“The MEV was designed intentionally to be compatible with a stacked launch, with a dual launch,” related Mr. Anderson. (Credit: ArianeGroup)He noted two major differences between MEV-2’s mission and the earlier MEV-1, the first of which being that Intelsat will keep the 10-02 satellite in Geostationary Orbit at 35,786 km instead of moving it up 300 km higher into what is known as the Geostationary Orbit graveyard.Ahead of Intelsat’s 151st launch this evening, our experts talk about the significance behind Every element of the MEV-1 mission went according to plan and proved out all of the rendezvous and docking systems.Intelsat reviewed the data, and was so pleased with the process they agreed to allow MEV-2 to approach and dock to Intelsat 10-02 in Geostationary Orbit while the satellite is still operating and performing its telecommunication duties to customers.The second change is directly related. “We’re not drifting past other operational satellites, so we don’t have the coordination of our telemetry and commanding to avoid Radio Frequency interferences.
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Lo scorso 6 Dicembre alle 22:40 GMT, un razzo Ariane 5 è decollato dallo spazioporto di Kourou nella Guiana Francese, con a bordo due satelliti per telecomunicazioni. However, a hold was called, under two minutes to launch. MEV-2 will now service another Intelsat spacecraft, Intelsat 10-02 which launched aboard a Proton-M rocket in 2004 and is currently located in Geostationary Orbit at 1.0 degrees West.NASASpaceflight interviewed Vice President for Business Development Joe Anderson of SpaceLogistics (the wholely-owned subsidiary of Northrop Grumman that operates the MEV vehicles) about the MEV-2 mission.This major difference is due to the success of MEV-1 and Intelsat 901, which had been decommissioned and moved into a Geostationary graveyard so that MEV-1 could rendezvous with it there.This allows for a more simplified process, noted Mr. Anderson.
The heavy lift rocket was scheduled to launch from pad Ensemble de Lancement Ariane 3 (ELA-3) ... separate from the top of SYLDA at T+34 minutes 22 … “Number one: we’re doing this directly in Geostationary Orbit, so it actually simplifies the process considerably, especially from the telemetry and commanding perspective.”Once MEV-2’s five year contracted mission with Intelsat 10-02 is complete, the spacecraft will be available for contract by other satellite operators in order to extend the lives of their would-be-decommissioned satellites.We use cookies to ensure that we give you the best experience on our website. (Credit ArianeGroup)After a brief reorientation in orbit after Galaxy 30’s release, MEV-2 will then separate from the top of SYLDA at T+34 minutes 22 seconds.“Once MEV-2 is separated from the upper stage of the launch vehicle, it does a few deployments of its own,” said Mr. Anderson. But it’s just as compatible of being stacked with another spacecraft as well. Riding above BSAT-4b, in the “upper passenger” position on top of the SYLDA, are two more spacecraft: Intelsat’s Galaxy 30 and Galaxy 30 is a communications satellite operated by The launch of Galaxy 30 will mark the beginning of the replacement program for Intelsat’s current fleet of 13 Galaxy satellites.The spacecraft will be positioned in a Geostationary Orbit at 125 degrees West, providing Ultra High Definition (UHD) and Over The Top (OTT) media services as well as other communications options to the continental U.S., Alaska, and the Caribbean Islands.MEV-2 follows in the footsteps of MEV-1, which launched aboard a Russian Proton-M rocket in September 2019 and docked to the Intelsat 901 satellite three months later in Geostationary orbit — the first-ever docking in that orbit. Il secondo stadio è montato in testa al serbatoio e prima del carico utile. Ariane 5 è un lanciatore sviluppato e costruito sotto autorizzazione dell'Agenzia Spaziale Europea (ESA) dalla EADS SPACE Transportation, il contrattista principale nonché capofila di molti sub appaltatori.Le operazioni di lancio e di marketing sono gestite dalla Arianespace, una sussidiaria dell'ESA che utilizza come base di lancio il centre spatial guyanais a Kourou nella Guyana francese. La fusée européenne doit décoller depuis le CSG Centre spatial guyanais à 21 h 30 (Paris), emportant avec elle deux satellites. “We were originally, if you go back several years, designing them to stack two of them together. Regardez en direct le lancement d'Ariane 5 ce soir !
“We’re not drifting relative to the Earth,” noted Mr. Anderson. Arianespace’s Ariane 5 is the world reference for heavy-lift launchers, able to carry payloads weighing more than 10 metric tons to geostationary transfer orbit (GTO) and over 20 metric tons into low-Earth orbit (LEO) – with a high degree of accuracy mission after mission. Three separate spacecraft comprise the dual-launch payload for this mission, including Galaxy 30, Mission Extension Vehicle-2, and BSAT-4b.Riding in the “lower passenger” position inside the SYLDA (Système de Lancement Double Ariane — “Ariane Double-Launch System”) is BSAT-4b, a broadcasting satellite built by Space Systems/Loral (SSL), a subsidiary of Maxar Technologies. L'Ariane 5G utilizza il EPS (Étage à Propergols Stockables/Stadio a propellente immagazzinabile), che è alimentato a La versione originale del razzo si chiamava Ariane 5G. Nell'anno Ariane 5 ECA è la variante con il massimo carico utile.