Featured Research

from universities, journals, and other organizations

Chandrayaan-1 Now In Lunar Transfer Trajectory

Date:
November 6, 2008
Source:
European Space Agency
Summary:
Following a fifth orbit-raising maneuver, the Chandrayaan-1 spacecraft successfully settled into a trajectory that will take it to the Moon.

After launch on 22 October, ISRO's Chandrayaan-1 spacecraft was first injected into a highly elliptical 7-hr orbit around Earth, reaching between 255 km and 22 860 km above our planet. The spacecraft then spiralled outwards in increasingly elongated ellipses around Earth, until it reached its lunar transfer orbit on 4 November at 00:26 CET (04:56 Indian standard time). This transfer orbit's farthest point from Earth is about 380 000 km.
Credit: ISRO

On Nov. 4, following a fifth orbit-raising manoeuvre, the Chandrayaan-1 spacecraft successfully settled into a trajectory that will take it to the Moon.

After launch on 22 October, the spacecraft was first injected into an elliptical 7-hr orbit around Earth, between 255 km and 22 860 km above our planet. After five engine firings, Chandrayaan-1 spiralled outwards in increasingly elongated ellipses around Earth, until it reached its lunar transfer orbit on 4 November at 00:26 CET (04:56 Indian standard time).  

In the fifth and last orbit-raising manoeuvre, the spacecraft’s 440 Newton liquid-fuel propelled engine was fired for about two and a half minutes. The lunar transfer orbit’s farthest point from Earth is about 380 000 km.

The spacecraft, which is being monitored from the Spacecraft Control Centre at the Indian Space Research Organisation’s ISRO Telemetry, Tracking and Command Network (ISTRAC) in Bangalore, is working very well. Chandrayaan-1’s Terrain Mapping camera (TMC) was successfully tested on 29 October and provided its first images, depicting Earth.

Chandrayaan-1 will approach the Moon on 8 November 2008 when the spacecraft’s liquid-fuel propelled engine will be fired again. This manoeuvre, called lunar orbit insertion, will decelerate the spacecraft to allow the Moon’s gravity to capture it into an elliptical lunar orbit. A series of further manoeuvres will then progressively lower the altitude of Chandrayaan-1 around the Moon until it reaches its final 100 km circular orbit.

The previous four orbit-raising manoeuvres took place on 23, 25, 26 and 29 October 2008, respectively.

Chandrayaan-1, India’s first mission to venture beyond Earth’s orbit, is led by ISRO. ESA has coordinated and supported the provision of the three European instruments on board (C1XS, SARA, SIR-2), and assisted ISRO in areas such as flight dynamics and is supporting data archiving and processing. As a result of the collaboration, ESA and ISRO will share the data from their respective instruments. Other international partners in the mission include Bulgaria and the USA.


Story Source:

The above story is based on materials provided by European Space Agency. Note: Materials may be edited for content and length.


Cite This Page:

European Space Agency. "Chandrayaan-1 Now In Lunar Transfer Trajectory." ScienceDaily. ScienceDaily, 6 November 2008. <www.sciencedaily.com/releases/2008/11/081105135124.htm>.
European Space Agency. (2008, November 6). Chandrayaan-1 Now In Lunar Transfer Trajectory. ScienceDaily. Retrieved October 2, 2014 from www.sciencedaily.com/releases/2008/11/081105135124.htm
European Space Agency. "Chandrayaan-1 Now In Lunar Transfer Trajectory." ScienceDaily. www.sciencedaily.com/releases/2008/11/081105135124.htm (accessed October 2, 2014).

Share This



More Space & Time News

Thursday, October 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Astronomers Spot Largest, Brightest Solar Flare Ever

Astronomers Spot Largest, Brightest Solar Flare Ever

Newsy (Oct. 1, 2014) — The initial blast from the record-setting explosion would have appeared more than 10,000 times more powerful than any flare ever recorded. Video provided by Newsy
Powered by NewsLook.com
French Apple Fans Discover the Apple Watch

French Apple Fans Discover the Apple Watch

AFP (Sep. 30, 2014) — Apple fans in France discover the latest toy, the Apple Watch. The watch comes in two sizes and an array of interchangeable, fashionable wrist straps. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
The Water You Drink Might Be Older Than The Sun

The Water You Drink Might Be Older Than The Sun

Newsy (Sep. 27, 2014) — Researchers at the University of Michigan simulated the birth of planets and our sun to determine whether water in the solar system predates the sun. Video provided by Newsy
Powered by NewsLook.com
First Woman Cosmonaut in 17 Years Blasts Off for ISS

First Woman Cosmonaut in 17 Years Blasts Off for ISS

AFP (Sep. 26, 2014) — A Russian Soyuz spacecraft carrying an American astronaut and two Russian cosmonauts, including the first woman cosmonaut in 17 years, blasted off on schedule Friday. Duration: 00:35 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins