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 August 31, 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 August 31, 2014).

Share This




More Space & Time News

Sunday, August 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Space Shuttle Discovery's Legacy, 30 Years Later

Space Shuttle Discovery's Legacy, 30 Years Later

Newsy (Aug. 30, 2014) The space shuttle Discovery launched for the very first time 30 years ago. Here's a look back at its legacy. Video provided by Newsy
Powered by NewsLook.com
Experiment Tests Whether Universe Is Actually A Hologram

Experiment Tests Whether Universe Is Actually A Hologram

Newsy (Aug. 27, 2014) Researchers at Fermilab are using a device called "The Holometer" to test whether our universe is actually a 2-D hologram that just seems 3-D. Video provided by Newsy
Powered by NewsLook.com
SpaceX’s Falcon 9 Rocket Explodes After Liftoff

SpaceX’s Falcon 9 Rocket Explodes After Liftoff

Newsy (Aug. 23, 2014) The private spaceflight company says it is preparing a thorough investigation into Friday's mishap. Video provided by Newsy
Powered by NewsLook.com
Did Russia Really Find Plankton On The ISS? NASA Not So Sure

Did Russia Really Find Plankton On The ISS? NASA Not So Sure

Newsy (Aug. 21, 2014) Russian cosmonauts say they've found evidence of sea plankton on the International Space Station's windows. NASA is a little more skeptical. Video provided by Newsy
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:
from the past week

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