ARIANESPACE ARIANE 5 TO LAUNCH DUAL PAYLOAD NEXT WEEK

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Image Credit & Copyright: Arianespace rollout of ATV-4.

Thursday, September 11th at 2118 UTC (1718 EDT) Arianespace will be launching the massive and beautiful Ariane 5 ECA Rocket (designated Flight VA218) with a dual payload of satellites. The Measat 3b satellite will deliver Ku-band direct-to-home broadcasting to Malaysia, India and Indonesia. Optus 10 will deliver television communication and two-way voice and data to Australia and New Zealand. Launch will take place from Launch Site, Ensemble de Lancement Ariane-3 (ELA-3) at the Arianespace Spaceport in Kourou, French Guiana.

Arianespace Ariane 5 rocket is a 2-stage expendable launch vehicle that comes in two variants (ECA & ES) and carries payloads weighing more than 10 metric tons to geostationary transfer orbit (GTO) and over 20 metric tons into low-Earth orbit (LEO).

Ariane 5 ECA is the heavy-lift workhorse for missions to geostationary transfer orbit (GTO), and usually carries two satellite payloads. The Ariane 5 ES is tailored for low-Earth orbit missions with the Automated Transfer Vehicle (ATV) – a resupply spacecraft for the International Space Station that weighs more than 19,000 kg at liftoff. This Ariane 5 version also is capable of lofting satellites for Europe’s new Galileo space-based navigation system. The primary difference from the Ariane 5 ECA configuration is the use of a storable propellant upper stage, which can perform multiple burns to deploy payloads into the desired orbit.

ARIANE 5 ECA & ES CONFIGURATION EXPLAINED: ARIANE5 ECA & ES = Heavy lift rocket that stands 53m (173.8ft) tall and is 5.4m (17.7ft) in diameter and is equipped with two solid rocket boosters.

PAYLOAD FAIRING = The main payload fairing is a 2-shell fairing that’s 5.4 m. (17.7 ft.) in diameter and 20 m. (65.6 ft.) in length. Roughly 3 minutes and 100 km after liftoff the shells are pyrotechnically jettisoned. Inside the fairing of the ECA configuration is the structure that accommodates two satellites called “Systeme de Lancement Double Ariane 5” or SYLDA 5.

SECOND STAGE (For the ECA configuration) = Also called the Cryogenic Upper Stage or “Etage Superieur Cryotechnique” (ESC-A) is 5.4m (17.7ft) in diameter by 4.7m (15.4ft) in length. It’s powered by a single HM7B engine that burns liquid hydrogen and liquid oxygen (LOX/LH2) creating 14,000lb 6.5 t of thrust. Burn time for the second stage varies depending on the mission but can operate for around 945 seconds. The second stage also houses the Vehicle Equipment Bay (VEB-C) or “The Brain” which controls the entire vehicle autonomously and also transmits flight data back to the ground.

SECOND STAGE (For the ES configuration) = “Etage Propergols Stockables” (EPS) is 3.9 m (12.8 ft) in diameter by 3.35 m (11 ft) in length. It differs from the ECA configuration because it is not cryogenic, meaning that it carries storable propellants. It’s powered by a single Aestus engine that burns monomethylhdrazine & nitrogen tetroxide creating 14,000lb 6.5 t of thrust. The second stage for this configuration can be reignited many times to suit the mission’s needs. The second stage also houses the Vehicle Equipment Bay (VEB-C) or “The Brain” which controls the entire vehicle autonomously and also transmits flight data back to the ground.

SOLID ROCKET BOOSTERS = 2 expendable SRBs known as Etage dAcceleration a Poudre or (EAPs) are attached to the Ariane 5 and they provide about 90% of the thrust at liftoff which equates to about 1200 t of thrust. They each stand 31.6m (103.7ft) tall and are 3m (10ft) in diameter. They are each powered by a single engine that burns solid fuel (Ammonium Perchlorate, Aluminum Powder and Polybutadiene); burn time is 135 seconds.

MAIN CORE STAGE (1st Stage) = The Core Stage, known as Etage Principal Cryotechnique or (EPC) stands 30 m. (98.4 ft.) high and has a diameter of 5.4m (17.7 ft.). It’s powered by a single Vulcan-2 engine which provides 136 t of thrust. It burns liquid hydrogen and liquid oxygen (LOX/LH2) and burns for 540 seconds.

LIVE STREAMING FEEDS:

Live Streaming Launch: http://www.arianespace.tv/

Arianespace Livestream: http://www.livestream.com/arianespace

European Space Agency (ESA) Space In Videos: http://www.esa.int/spaceinvideos/esalive

European Space Agency (ESA) Livestream: http://www.livestream.com/eurospaceagency

CNES website for launch: http://www.cnes.fr/web/CNES-en/10082-follow-ariane-launch-live.php

MISSION DATA LINKS:

VA-218 mission information: http://www.arianespace.com/news-mission-update/2014/1206.asp

ARIANESPACE LINKS:

Arianespace Homepage: http://www.arianespace.com

Twitter: https://twitter.com/Arianespace

Instagram: http://instagram.com/arianespace

Flickr: http://www.flickr.com/photos/arianespace/

You Tube: http://www.youtube.com/arianespace

EUROPEAN SPACE AGENCY (ESA) LINKS:

European Space Agency (ESA) homepage: http://www.esa.int/ESA

Twitter: https://twitter.com/esa

Google Plus: https://plus.google.com/+EuropeanSpaceAgency

Flickr: http://www.flickr.com/photos/europeanspaceagency/sets/

You Tube: http://www.youtube.com/user/ESA

SPACEPORT KOUROU, ARIANE 5 & ATV DATA LINKS:

Ariane 5 information and data sheets: http://www.arianespace.com/launch-services-ariane5/ariane-5-intro.asp

Ariane 5 User’s Manual: http://www.arianespace.com/launch-services-ariane5/Ariane-5-User’s-Manual.asp

Ariane 5 Brochure: http://www.arianespace.com/launch-services/Flyers/Flyer-Ariane-5-2011.pdf

ESA Ariane 5 vehicle data page: http://www.esa.int/Our_Activities/Launchers/Launch_vehicles/Ariane_5

Spaceflight 101 Ariane 5 ECA data: http://www.spaceflight101.com/ariane-5-eca.html

Spaceflight 101 Ariane 5 ES data: http://www.spaceflight101.com/ariane-5-es.html

Ariane 5 ELA-3 launch site: http://www.arianespace.com/spaceport-ariane5/overview.asp

Spaceport French Guiana: http://www.arianespace.com/spaceport-intro/overview.asp

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