The Chandrayaan-1 Mission

Spacecraft for lunar mission is :

- Cuboid in shape of approximately 1.5 m side.




- Weighing 1380 kg at launch and 675 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 750W 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) Onboard 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.

Category:

Science & Technology

Tags:

• Chandrayaan-1
• Mission

[RoadRunnerLaser]

... to answer the age-old question of exactly what kind of cheese the moon is made. ;)

[shoa31]

Good thing that we are as one earth looking out to expand the gift of life to other planets. Go India !

[chandrasekarmk]

RoadRunnerLaser--- the answer is simple

Moon contains : 1) 95% sand and 5% of meteroids,some salts, and very costly things like gold and dimond...!

[nibus9]

Mr M Annadurai ISRO Project Director ... you dont know any thing about the moon so far ... what you want to do is so outdated !! what do you know about others like NASA .. do you really know how they are " looking at the moon " right now ... Mr Annadurai ... they are secretley mining on the moon for old technologies and its past artificial history !!

[Shadowsnshades]

I think it's great that other countries are just now exploring the moon. Go India! Thanks bruno for posting.

[shobhitg]

ChandraYaan != Journey to the moon

but actually,

ChandraYaan = Vehicle to travel to the Moon