Chandrayaan-1: Laser payload turned on
Jayesh Limaye, Nov 17, 2008 1522 hrs IST
This laser payload sends pulses of infrared laser light towards a strip of lunar surface and detects and analyzes the reflected portion of that light.
Now that the MIP is on the lunar surface, further mission objectives are being realized. Two days after the MIP landed on the Moon, the lunar laser ranging instrument (LLRI) on board India's first unmanned spacecraft Chandrayaan-1 was switched on.
ISRO stated in a statement "The instrument was turned on when the spacecraft was orbiting over the western part of the moon's visible atmosphere. Initial data indicated the instrument's performance is normal."
This laser payload sends pulses of infrared laser light towards a strip of lunar surface and detects and analyzes the reflected portion of that light. The wavelength of the light used in this case is 1,064 nm. This instrument also accurately measures the altitude of the spacecraft above the lunar surface and the Moon's surface features.
The LLRI will take 10 measurements per second on both, day as well as night side of the Moon and provide topographical details of its polar and equatorial regions.
A space agency official said "Analysis of the LLRI data helps in understanding the internal structure of the moon, the way the celestial body evolved over millions of years and the way its large surface features changed over time."
Built by ISRO's laboratory for electro-optic systems in Bangalore, LLRI is the fourth of the 11 scientific payloads onboard Chandrayaan, orbiting 100 km above the moon's surface.
The statement added "Chandrayaan will use high resolution remote sensing in the visible, near infrared, microwave and X-ray regions of the electromagnetic spectrum to map the moon over the next two years. It will enable preparation of a 3-D atlas of the lunar surface and help map it chemically."
The LLRI will take high resolution images, which will help in understand how the Moon evolved. This data will also help in better understanding the moon's gravitational field.
USER COMMENTS
GREAT MOMENT FOR INDIA...ABOVE ALL THIS HAPPENED DUE TO HARDWORK OF OUR SCIENTISTS. EVERY INDIAN SHOULD BE PROUD OF THIS.NOW WE CAN CHALLANGE THE SUPER POWERS FOR THEIR DOMINANCE OVER WORLD IN THIS TECHNOLOGY... GOD BLESS INDIA
by CHARANJIT SINGH, HOSHIARPUR ,PUNJAB, on Nov 20, 2008 02:07 PM, Report abuse Reply
This is great...But can we have a good length documentary (on news channels) on how our scientists worked hard to make this mission successful.
by Mahesh Laddha, Mumbai, on Nov 20, 2008 09:47 AM, Report abuse Reply
only our scintists are our proud.
by SAGAR KADAM, KOPARGAON, on Nov 20, 2008 10:30 AM, Report abuse
NOW WE ARE ON MOON .IF GOD IS WITH US WE WILL BE ON MARS & SO ON.
by SAGAR KADAM, KOPARGAON, on Nov 20, 2008 10:27 AM, Report abuse Reply
we are proud tobe an Indian.Moon is our.@JAYHIND@
by SAGAR KADAM, KOPARGAON, on Nov 20, 2008 10:24 AM, Report abuse Reply
sir can you just tell me brefily about this chandrayaan because right from my child out i refused to learn about all these things pls help me out
by rajasekar, chennai, on Nov 20, 2008 09:48 AM, Report abuse Reply
i am eager to see the photos that the chandrayaan took of the moon
by sindhu, trichy, on Nov 20, 2008 06:52 AM, Report abuse Reply
SUPERB Go on Best of luck for future plans
by AJAY.R, TRIVANDRUM, on Nov 19, 2008 10:03 PM, Report abuse Reply
its great. proud to be an INDIAN
by hariom ahlawat, delhi, on Nov 19, 2008 08:14 PM, Report abuse Reply
only onething left.somebody there to send voicemessage like RAKESH SHARMA DID "sarejahanse acha"
by SATHEECHANDRAN, VELLORE, on Nov 19, 2008 03:44 PM, Report abuse Reply
This is really great. Can we have some images that are send my chandrayan-I ?
by Jayram, hyderabad, on Nov 19, 2008 09:46 AM, Report abuse Reply
the results of chandrayan must help scientists for a probe on mars in future
by BVN.SAGAR, SULLURUPETA, on Nov 19, 2008 09:25 AM, Report abuse Reply
HAPPY TO NOTE THE DETAILS OF MIP AND LET US HOPE THAT THE TWO YEAR ORBITING OF CHANDRAYAN AROUND MOOON WOULD BE FRUITFUL
by BVN.SAGAR, SULLURUPETA, on Nov 19, 2008 09:21 AM, Report abuse Reply
Instead of sending Chandrayaan2, research should be diverted to send a probe to Mars with Lander. Thus overtaking other nations.
by Joe Antony, Kochi, on Nov 17, 2008 08:11 PM, Report abuse Reply
I think India is concentrating on Helium-3 (and perhaps other subtances) and the potential energy source from the moon, and so it will get a high priorily. It wouldn't surprise me if they did a Mars probe at some point in the near futre (5 years or so), though the tangible rewards (for them) are more distant for such a project.
by Chris Hyman, Wildwood, on Nov 17, 2008 10:32 PM, Report abuse
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What is the nature of radioactive particle present in the moon is the vital factor for generating power to ease the oxygen factor in the moon. In future the radioactive particle present in the moon will be used to generate oxygen in the artificial atmosphere of the moon. The minerals map generating instrument of the Chandrayan-I will be a great chapter for the future astronaught and astrophysicist.
by Arnab Kumar Mon, Kolkata, on Nov 20, 2008 02:19 PM, Report abuse Reply