Chandrayaan-I : India’s flight into the space

The day is here. Years of hard work is about to pay off. India is all set to launch its first ever unmanned moon mission tomorrow.

Chandrayaan-I will be launched tomorrow, i.e. 22 October 2008 at 0620 hrs IST (0050 hrs GMT) from Satish Dhawan Space Centre in Sriharikota. The probe will be set on a journey towards moon where it will collect useful data about the natural satellite of the earth. The long journey of 3,86,000 kms is expected to take about 5 and a half days.

Chandrayaan-I will be carried into space by India’s reliable rocket PSLV-C11 (Polar Satellite Launch Vahicle) which has in the past successfully launched many Indian and foriegn satellites into the orbit. Chandrayaan-I will revolve for around 2 years around the moon at an altitude of nearly 100kms and take high resolution 3D images of the lunar surface and try to find possible mineral deposits as well as traces of water. It will also look for presence of a rare isotope Helium-3, which can be very  useful in solving the energy riddle of our planet. The spacecraft translated into “Lunar Craft” (Chandra=lunar/moon and yaan= craft/vehicle) will carry a payload of 590kg which includes 5instruments from ISRO (Indian Space Research Organization) and 6of other space agencies including NASA, ESA(European Space Agency).

This is the description of the spacecraft as given on the ISRO site:

Spacecraft for lunar mission is :

  • Cuboid in shape of approximately 1.50 m side.
  • Weighing 1304 kg at launch and 590 kg at lunar orbit.
  • Accommodates eleven science payloads.
  • 3-axis stabilized spacecraft using two star sensors, gyros and four reaction wheels.
  • The power generation would be through a canted single-sided solar array to provide required power during all phases of the mission. This deployable solar array consisting of a single panel generates 700W of peak power. Solar array along with yoke would be stowed on the south deck of the spacecraft in the launch phase. During eclipse spacecraft will be powered by Lithium ion (Li-Ion) batteries.
  • After deployment the solar panel plane is canted by 30º to the spacecraft pitch axis.
  • The spacecraft employs a X-band, 0.7m diameter parabolic antenna for payload data transmission. The antenna employs a dual gimbal mechanism to track the earth station when the spacecraft is in lunar orbit.
  • The spacecraft uses a bipropellant integrated propulsion system to reach lunar orbit as well as orbit and attitude maintenance while orbiting the moon.
  • The propulsion system carries required propellant for a mission life of 2 years, with adequate margin.
  • The Telemetry, Tracking & Command (TTC) communication is in S-band frequency.
  • The scientific payload data transmission is in X-band frequency.
  • The spacecraft has three Solid State Recorders (SSRs) on board to record data from various payloads.
  • SSR-1 will store science payload data and has capability of storing 32Gb data.
  • SSR-2 will store science payload data along with spacecraft attitude information (gyro and star sensor), satellite house keeping and other auxiliary data. The storing capacity of SSR-2 is 8Gb.
  • M3 (Moon Mineralogy Mapper) payload has an independent SSR with 10Gb capacity.


The cost of Chandrayaan-I mission is estimated to be around $83 million.

So why all the fuss about Chandrayaan when US and USSR did this almost half a century ago? Well, a space mission is something to do with national pride as well. Indians will be proud to find themselves in the elite club of nations/space agencies who have achieved this incredible feat. The list as of now includes USA,Russia,China,Japan,ESA. Its not that difficult to understand what it takes to stand in that list which also does not includes many of the far more developed countries than India. It only re establishes the excellence of Indian minds and justifies why there is a demand for Indian brain worldwide. It re affirms India’s rise as a global super power not only economically but also technologically and millitarily. India’s inclusion will only heat up the space race in Asia. India will be seen as a more reliable option for countries wanting to place their satellites into the space but lacking the ability to do so. Not to forget, India’s space programme also has applications in improving the country’s defence. PSLV, the rocket developed by ISRO will be the base of Agni-V, India’s first ICBM (Inter Continental Ballistic Missile) with a range of 5000kms which is expected to be tested towards the end of 2010.

That gives you enough reasons to rejoice if you are an Indian. But at the same time, we should not forget we do not stop here. Though that is the last thing on ISRO’s agenda right now. ISRO is planning another mission to the moon, Chandrayaan-II, which will attempt to land on the moon. Chandrayaan-II will be launched between 2010-2012. ISRO also plans a manned lunar mission by 2020 and a unmanned mission to Mars. Way to go ISRO.

An ESA video on Chandrayaan-I:

All the very best to all the scientists working for the project. You guys deserve it.

Images from ISRO website and here

This post was written by:

- who has written 290 posts on The Everything Blog.

I'm a 22 year old guy blogging about things which I feel are important. Currently pursuing B.Tech in Biotechnology.

Contact the author

23 Comments For This Post

  1. riki Says:

    hello…good…you always keep on enhancing my is so good to check your site for quality information..
    it will surely make us proud..

  2. Mayank Says:

    Your welcome!

    Yeah,i feel proud as an Indian.
    I obviously watched the launch LIVE.Did you?

  3. riki Says:

    NO!i missed it.. :(
    but yes i feel proud of it too..

  4. Mayank Says:

    If you missed it, i posted a launch video at the end of this post.Check it out.

  5. lvs Says:

    Excellent article. Great pictures. Did you know that they used the earths gravity to slingshot Chandrayaan. This way it had to carry lesser fuel. There were innovations galore in Chandrayaan.

  6. Mayank Says:

    @ Ivs
    Yep,im aware of that. BTW AFAIK using gravity to slingshot has long been used.Correct me if im wrong.
    BTW,thanks for the appreciation. You might also like to read my follow up post of the launch here:

  7. Affiliate Says:

    Substantially, the article is in reality the sweetest on this notable topic. I fit in with your conclusions and will eagerly look forward to your forthcoming updates. Just saying thanks will not just be sufficient, for the extraordinary lucidity in your writing. I will instantly grab your rss feed to stay abreast of any updates. De lightful work and much success in your business enterprize!

  8. Best CPA Networks Says:

    Most internet marketers who are having success these days are using Cost Per Action, or CPA ads. The reason for this marketers don’t need to complete high ticket sales in order to get credited for a conversion.

  9. כורסאות טלויזיה Says:

    אני ממליץ על חנות הרהיטים א ל קנגרו – יבוא רהיטים, מערכות ישיבה, סלונים, כורסאות טלויזיה, כורסאות עיסוי בלעדיים במחירים סיטונאים מהיבואן לצרכן .

  10. staffing software Says:

    Doesn’t it consume major time to keep your blog so interesting ?

  11. brinkmann gas grill Says:

    As a Newcomer, I am continuously looking on the net for articles and reviews that may help me. But do you know how come i can’t see all the pictures on your website?

  12. unmetered servers Says:

    Hi there! I just wanted to ask if you ever have any problems with hackers? My last blog (wordpress) was hacked and I ended up losing a few months of hard work due to no backup. Do you have any methods to stop hackers?

  13. Loriann Mudd Says:

    Excellent beat ! I wish to apprentice while you amend your website, how could i subscribe for a blog web site? The account aided me a acceptable deal. I had been a little bit acquainted of this your broadcast offered bright clear idea

  14. buy hot booties Says:

    A cool blog post right there mate ! Cheers for that .

  15. herbal remedy for arthritis Says:

    I appreciate the time you put in this work or in this post. Although u have bright ideas, I really can’t agree with them. I’m sure there are better ways to walk through this difficult situation. Not trying to flame or be stupid or anything .

  16. walmart gift cards Says:

    Sharing some thing is better than keeping up-to our self, so the YouTube video that is posted at this time I am going to share with my family and colleagues.

  17. Veggies Juice Says:

    Everything is very open with a clear explanation of the issues. It was truly informative. Your website is useful. Many thanks for sharing!

  18. Kay Candlish Says:

    I relish, cause I discovered exactly what I used to be having a look for. You have ended my 4 day long hunt! God Bless you man. Have a nice day. Bye

  19. 3 month payday loans cash Says:

    After looking at a few of the blog posts on your site, I truly like your way of writing a blog. I added it to my bookmark site list and will be checking back soon. Please visit my website too and tell me your opinion.

  20. Marybeth Bispham Says:

    I am getting married on the 15th of November. Congratulate me! Then will be here rarely!…

  21. Patti Genas Says:

    I’ve recently started a blog, and the info you offer on this web site has helped me a lot. Thanks for all of your time & work.

  22. website erstellen gratis ohne werbung Says:

    whoah this weblog is excellent i like studying your posts. Keep up the great work! You understand, lots of people are hunting around for this info, you can aid them greatly.

  23. Boca Raton CPA Says:

    Hiya! I know this is kinda off topic but I’d figured I’d ask. Would you be interested in exchanging links or maybe guest authoring a blog article or vice-versa? My site goes over a lot of the same topics as yours and I feel we could greatly benefit from each other. If you might be interested feel free to send me an e-mail. I look forward to hearing from you! Awesome blog by the way!|