Spaceflight Now Home

Mission Reports

For 11 years, Spaceflight Now has been providing unrivaled coverage of U.S. space launches. Comprehensive reports and voluminous amounts of video are available in our archives.
Space Shuttle
Atlas | Delta | Pegasus
Minotaur | Taurus | Falcon


Sign up for our NewsAlert service and have the latest space news e-mailed direct to your desktop.

Enter your e-mail address:

Privacy note: your e-mail address will not be used for any other purpose.


Space Books

Beidou navigation payload launched by Chinese rocket

Posted: February 24, 2012

Bookmark and Share

China launched another satellite Friday for the Beidou space-based navigation network, continuing the system's expansion after it began trial service in December.

Liftoff of the Long March 3C launcher occurred just after midnight Saturday, local time, from the Xichang space center in southwest China. Credit: Beidou network
A Long March 3C rocket lifted off at 1612 GMT (11:12 a.m. EST) Friday from the Xichang space base in southwest China's Sichuan province. It was 12:12 a.m. Saturday at the launch site, according to the China Academy of Launch Vehicle Technology.

The 18-story launcher, boosted by twin strap-on engines, flew east from Xichang and deployed the Beidou payload in an oval-shaped geosynchronous transfer orbit stretching more than 22,300 miles above Earth at its furthest point.

Built by the China Academy of Space Technology, the spacecraft will maneuver itself to a circular orbit over the equator, where it will join the Beidou fleet.

The Beidou navigation constellation, also known as Compass, is China's counterpart to the U.S. Air Force's GPS program. Russia and Europe are also developing independent space navigation capabilities.

The newest spacecraft is the 11th operational Beidou satellite launched by China since 2007. It is the fifth craft to be launched into geosynchronous orbit over the equator, while other satellites operate in medium-altitude orbits and inclined flight paths to cover polar regions.

Artist's concept of a Beidou satellite in orbit. Credit: CAST
Friday's launching marked the first Beidou satellite orbited this year. Several more missions are planned in 2012 to expand the system.

China activated the Beidou network Dec. 27 on a trial basis. Its 10 operational satellites currently provide services over the Asia-Pacific region, including most of China. The coverage zone stretches from the southern border of Russia to Australia, and from India in the west to the Pacific Ocean in the east.

The system has been used in transportation, weather forecasting, marine fisheries, hydrological monitoring, and mapping, according to the state-run Xinhua news agency.

Global coverage will be possible by 2020 with a constellation of 35 satellites, Xinhua reported.

The best service will be available to Chinese military and civil government users. Positioning information with an accuracy of 10 meters, or about 33 feet, will be released to the public worldwide.

John Glenn Mission Patch

Free shipping to U.S. addresses!

The historic first orbital flight by an American is marked by this commemorative patch for John Glenn and Friendship 7.

Final Shuttle Mission Patch

Free shipping to U.S. addresses!

The crew emblem for the final space shuttle mission is available in our store. Get this piece of history!

Celebrate the shuttle program

Free shipping to U.S. addresses!

This special commemorative patch marks the retirement of NASA's Space Shuttle Program. Available in our store!

Anniversary Shuttle Patch

Free shipping to U.S. addresses!

This embroidered patch commemorates the 30th anniversary of the Space Shuttle Program. The design features the space shuttle Columbia's historic maiden flight of April 12, 1981.

Mercury anniversary

Free shipping to U.S. addresses!

Celebrate the 50th anniversary of Alan Shephard's historic Mercury mission with this collectors' item, the official commemorative embroidered patch.

Fallen Heroes Patch Collection
The official patches from Apollo 1, the shuttle Challenger and Columbia crews are available in the store.



© 2014 Spaceflight Now Inc.