Subscribe to our free daily newsletters
  Space Travel News  




Subscribe to our free daily newsletters



LAUNCH PAD
Ariane Ariane 5 enjoys second successful launch for 2011

illustration only
by Staff Writers
Paris (ESA) Apr 25, 2011
An Ariane 5 launcher has lifted off from Europe's Spaceport in French Guiana on its mission to place two telecommunications satellites, Yahsat Y1A and Intelsat New Dawn, into their planned transfer orbits. Flight VA201 was the second Ariane 5 launch of 2011.

Liftoff of the 57th Ariane 5 mission came at 23:37 CEST (21:37 GMT; 18:37 French Guiana) on Friday night. The target injection orbit had a perigee altitude of 250 km, an apogee altitude at injection of 35 962 km and an inclination of 6 degrees.

The satellites were accurately injected into their transfer orbits about 27 minutes and 35 minutes after liftoff, respectively.

Yahsat Y1A will be positioned above the equator at 52.5E. It will provide innovative broadband solutions for Internet, business data and high-definition television services to institutional and commercial customers in the Middle East, Africa, Europe and Southeast Asian.

Intelsat New Dawn, to be positioned over 32.8E, will offer a wide range of services to Africa, including telephony, Internet, media and data networks.

The payload mass for this launch was 10 064 kg; the satellites totalled 8965 kg, with payload adapters and dispensers making up the additional 1099 kg.

With a total mass of over 10 t, it is the heaviest payload ever launched by an Ariane 5 ECA. This was made possible by detailed post-flight analyses to fully exploit the propulsion potential of each stage. Further performance increases are in the pipeline to keep up with the trend towards heavier telecom satellites.

Arianespace and Europe's Spaceport are planning four more Ariane launches in 2011, maintaining the heavy-lift vehicle's flight rate.

VA201 flight timeline
The Ariane 5's cryogenic, liquid-propellant main engine was ignited first. Seven seconds later, the solid-propellant boosters also fired, and the vehicle lifted off a fraction of a second later.

The solid boosters were jettisoned 2 min 20 sec after main engine ignition, and the fairing protecting the payload during the climb through Earth's atmosphere was discarded at 3 min 11 sec.

The launcher's main engine was shut down at 8 min 53 sec; six seconds later, the main cryogenic stage separated from the upper stage and its payload.

Four seconds after main stage separation, the engine of the cryogenic upper stage was ignited to continue the journey. The engine was shut down at 25 min 21 sec into the flight, at which point the vehicle was travelling at 9354 m/s (33 674 km/h) at an altitude of 656.7 km. The conditions for geostationary transfer orbit injection had been achieved.

At 27 min 27 sec after main engine ignition, Yahsat Y1A separated from the upper stage, followed by Intelsat New Dawn at 35 min 03 sec. Ariane 5's flight operations were completed 46 min 03 sec after main engine ignition.



Share This Article With Planet Earth
del.icio.usdel.icio.us DiggDigg RedditReddit
YahooMyWebYahooMyWeb GoogleGoogle FacebookFacebook



Related Links
Arianespace
Launch Pad at Space-Travel.com



Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News


LAUNCH PAD
Ariane rocket launches two telecoms satellites
Paris (AFP) April 23, 2011
An Ariane-5 rocket placed two telecommunications satellites into geostationary orbit early Saturday, the 43rd successive success for the European rocket, Arianespace announced. The rocket blasted off from the European space centre at Kourou, French Guiana, at 2137 GMT Friday. The 5.9-tonne United Arab Emirates satellite Yahsat Y1A built by Astrium and Thales Alenia Space will supply high ... read more







LAUNCH PAD
GSAT-8 put through its paces

Ariane Ariane 5 enjoys second successful launch for 2011

Ariane rocket launches two telecoms satellites

SpaceX aims to put man on Mars in 10-20 years

LAUNCH PAD
NASA Orbiter Reveals Big Changes in Mars' Atmosphere

Dry ice find hints Mars was a wetter place: study

A Tale Of Two Deserts

Mars Rover's 'Gagarin' Moment Applauded Exploration

LAUNCH PAD
India Eyeing Collaboration With JPL In 2016 NASA Lunar Mission

BRP To Contribute To Canadian Moon And Mars Exploration Programs

Naveen Jain Co-Founder And Chairman Of Moon Express

Project Morpheus To Begin Testing At NASA's Johnson Space Center

LAUNCH PAD
Carbon monoxide detected around Pluto

The PI's Perspective: Pinch Me!

Later, Uranus: New Horizons Passes Another Planetary Milestone

Can WISE Find The Hypothetical Tyche In Distant Oort Cloud

LAUNCH PAD
Tuning Into ExoPlanet Radio

The Shocking Environment Of Hot Jupiters

Radio signals could 'tag' distant planets

Titan-Like Exoplanets

LAUNCH PAD
Russia may launch light Soyuz carrier rocket by 2012

Weak Russian component downed Indian rocket Says Ex-ISRO chief

Russia To Develop New Space Rocket By 2015

NASA awards $270 million in spaceship contracts

LAUNCH PAD
Asia's star ever brighter in space

What Future for Chang'e-2

China setting up new rocket production base

China's Tiangong-1 To Be Launched By Modified Long March II-F Rocket

LAUNCH PAD
Fast-Rotating Asteroid Winks For Astronomer's Camera

Cold Asteroids May Have A Soft Heart

WISE Mission Spots 'Horseshoe' Asteroid

WISE Mission Spots Horseshoe Asteroid


The content herein, unless otherwise known to be public domain, are Copyright 1995-2010 - SpaceDaily. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement