Subscribe free to our newsletters via your
. Space Industry and Business News .




DRAGON SPACE
China completes first mission to moon and back
by Staff Writers
Beijing (AFP) Nov 01, 2014


Returning lunar orbiter makes skip re-entry
BEIJING, Nov. 1 (Xinhua) -- The return module of China's test lunar orbiter made a skip re-entry before plunging into the terrestrial atmosphere for a much anticipated home coming.

If all goes well, it will finally touch down in Siziwang Banner in Inner Mongolia later.

Before its re-entry into Earth, the spacecraft was moving at a velocity of 11.2 kilometers per second. This speed can generate temperatures of more than 1,500 degrees Celsius.

To help the craft slow down, scientists have employed a Soviet-designed method by letting the craft "bounce" off the edge of the Earth's atmosphere, before re-entering again.

The re-entry angle has to be guided so precisely that a 0.2 degrees deviation would render the mission a failure. Experts have previous compared the process to "stone skipping," which helps cut the "braking distance" for the orbiter.

China completed its first return mission to the moon early Saturday with the successful re-entry and landing of an unmanned probe, state media reported, in the latest step forward for Beijing's ambitious space programme.

The probe landed safely in northern China's Inner Mongolia region, state news agency Xinhua said, citing the Beijing Aerospace Control Center.

Xinhua said the probe took "some incredible pictures" of the Earth and the moon.

Prior to re-entering the Earth's atmosphere, the unnamed probe was travelling at 11.2 kilometres per second (25,000 miles per hour), a speed that can generate temperatures of more than 1,500 degrees Celsius (2,700 degrees Fahrenheit), the news agency reported.

To slow it down, scientists let the craft "bounce" off Earth's atmosphere before re-entering again and landing.

The probe's mission was to travel to the moon, fly around it and head back to Earth, the State Administration of Science, Technology and Industry for National Defence (SASTIND) said in a statement at its launch eight days ago.

The module would have been 413,000 kilometres from Earth at its furthest point on the mission, SASTIND said at the time.

The mission was launched to test technology to be used in the Chang'e-5, China's fourth lunar probe, which aims to gather samples from the moon's surface and will be launched around 2017, SASTIND previously said.

Beijing sees its multi-billion-dollar space programme as a marker of its rising global stature and mounting technical expertise.

The military-run space project, which has plans for a permanent orbiting station by 2020 and eventually to send a human to the moon, is also seen as evidence of the ruling Communist Party's success in turning around the fortunes of the once poverty-stricken nation.

China currently has a rover on the surface of the moon.

The craft, called the Jade Rabbit and launched as part of the Chang'e-3 lunar mission late last year, has been declared a success by Chinese authorities, although it has been beset by mechanical troubles.

Chinese unmanned lunar orbiter returns home, first in nearly four decades
BEIJING, Nov. 1 (Xinhua) -- China succeeded Saturday in the world's first mission to the Moon and back for some 40 years, becoming the third nation to do so after the former Soviet Union and the United States.

The test lunar orbiter, nicknamed "Xiaofei" on Chinese social networks, landed in Siziwang Banner of China's Inner Mongolia Autonomous Region early Saturday morning.

The last documented mission of this kind was by the Soviet Union in the 1970s.

"Xiaofei" is mean to test technologies that will be used in the Chang'e-5 mission, scheduled for 2017 when an unmanned spacecraft will land on the moon, collect a soil sample and return to Earth.

The landing site is about 500 kilometers away from Beijing.

Launched Friday last week, the orbiter traversed 840,000 kilometers on its eight-day mission that saw it round the far side of the Moon and take some incredible pictures of Earth and Moon together.

The re-entry process began at around 6 a.m. Saturday morning, with the orbiter approaching Earth at a velocity of about 11.2 kilometers per second.

The high speed led to hefty friction between the orbiter and air and high temperatures on the craft's exterior, generating an ion sheath that cut off contact between ground command and the orbiter.

To help it slow down, the craft is designed to "bounce" off the edge of the atmosphere, before re-entering again. The process has been compared to a stone skipping across water, and can shorten the "braking distance" for the orbiter, according to Zhou Jianliang, chief engineer with the Beijing Aerospace Command and Control Center.

"Really, this is like braking a car," said Zhou, "The faster you drive, the longer the distance you need to bring the car to a complete stop."

The "bounce" was one of the biggest challenges of the mission, because the craft must enter the atmosphere at a very precise angle. An error of 0.2 degrees would have rendered the mission a failure.

Wu Yanhua, vice director of China's State Administration of Science, Technology and Industry for National Defense, said the test mission has gathered a lot of experimental data and laid a solid foundation for future missions.

Source: Xinhua News Agency


Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only


.


Related Links
China National Space Administration
The Chinese Space Program - News, Policy and Technology
China News from SinoDaily.com






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle








DRAGON SPACE
Wenchang to launch China's next space station
Beijing (XNA) Oct 28, 2014
China's fourth space launch center, the Wenchang satellite launch center in south China's Hainan Province, will launch the country's space station and cargo spacecrafts. Tao Zhongshan, chief engineer of the Xichang launch center, told Xinhua on Sunday that the new center will be used mainly for geosynchronous orbiters, large-tonnage space stations, cargo spacecraft, and large polar orbit s ... read more


DRAGON SPACE
Active, biodegradable packaging for oily products

E-waste inferno burning brighter in China's recycling capital

Reverse engineering materials for more efficient heating and cooling

Steering ESA satellites clear of space debris

DRAGON SPACE
Canadian military receiving satellite-on-the-move communications system

Central Asian country orders Harris tactical radios

Canadian military communications getting upgrade

Russia to Orbit 9 MilCom Satellites by 2020

DRAGON SPACE
NASA Completes Initial Assessment after Orbital Launch Mishap

India to test fly bigger space vehicle next month

Arianespace signs contract with ELV for ten Vega launchers

Antares Rocket Crash in Virginia Investigation to Take up to Year

DRAGON SPACE
A GPS from the chemistry set

No Galileo nav-sat launch for December - Arianespace

Russian Bank Offers 5 Billion Rubles for GLONASS

Galileo duo handed over in excellent shape

DRAGON SPACE
Britain modernizing military air traffic management system

Airbus DS and Indian firm jointly pursue transport deal

Israel backing out of US V-22 aircraft sale: report

Slovak military orders C-27J Spartans

DRAGON SPACE
Harnessing error-prone chips

Saving lots of computing capacity with a new algorithm

Raising cryptography's standards

DARPA Circuit Achieves Speeds of 1 Trillion Cycles per Second

DRAGON SPACE
Copernicus operations secured until 2021

IceBridge Flies Around the Pole

ECOSTRESS Will Monitor Plant Health

China to help map Guyana's mineral resources: minister

DRAGON SPACE
Delhi chokes on toxic smog after festival of lights

Major breakthrough could help detoxify pollutants

US hid troop exposure to chemical agents in Iraq: report

Days of heavy air pollution blight northern China




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news 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 Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service.