• Increase font size
  • Default font size
  • Decrease font size

Go Back   Chandrayaan | Forums > Chandrayaan 1

Chandrayaan 1 Forum to discuss India's first Moon Mission , Chandrayaan-1

Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 11-10-2008, 02:54 PM
himanish.bhattacharjee himanish.bhattacharjee is offline
Join Date: Oct 2008
Posts: 8
Default First Lunar Orbit Reduction Manoeuvre of Chandrayaan-1 Successfully Carried Out

Update 10/11/2008

The first orbit reduction manoeuvre of Chandrayaan-1 spacecraft which is orbiting the moon, was successfully performed yesterday (November 9, 2008) night. As part of that manoeuvre which began at 20:03 IST, the 440 Newton liquid engine of the spacecraft was fired for about 57 seconds. With this, the nearest point of Chandrayaan-1’s orbit (periselene) from the moon’s surface was reduced from 504 km to 200 km while the farthest point (aposelene) remained unchanged at 7,502 km. In this elliptical orbit, Chandrayaan-1 takes about ten and a half hours to circle the moon once.

It may be recalled that the lunar orbit insertion manoeuvre of Chandrayaan-1 was successfully performed on November 8, 2008 and the spacecraft entered into an orbit around the moon with a periselene of 504 km and an aposelene of 7,502 km.

The health as well as the orbit of Chandrayaan-1 spacecraft is being closely monitored from the Spacecraft Control Centre of ISRO Telemetry, Tracking and Command Network (ISTRAC) in Bangalore with crucial support from Indian Deep Space Network antennas at Byalalu. The spacecraft performance is normal.

Further orbit reduction manoeuvres are scheduled in the coming days to take Chandrayaan-1 to its final operational orbit of 100 km height from the lunar surface. After this, the Moon Impact Probe, one of the eleven scientific instruments (payloads) of Chandrayaan-1, will be released to hit the moon’s surface.

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Forum Jump

All times are GMT +1. The time now is 05:28 PM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2022, vBulletin Solutions, Inc.