Of all the
planets in the solar system, Mars has been subject of human interest for a very
long time. The red planet is identical to Earth in many ways. For ages, humans
have been contemplating about life on Mars. In spite of that humans are still
unsure whether Mars has a biosphere or had a habitat in which life could have
evolved or sustained. With these questions in mind, India’s National space
agency ISRO launched Mangalyaan, its first interplanetary mission.
Mangalyaan
successfully lifted off towards Mars on 5 November 2013 from the Satish Dhawan
Space Centre, Sriharikota using a PSLV rocket C25 at 2:38 PM. The main
objective of the Mars Orbiter Mission (MOM) is to demonstrate India's rocket
launch systems, spacecraft constructing and operation capacities. The scientific
objective is to analyze Martian atmosphere including its surface features,
mineralogy and morphology. It will also seek possibilities of deep space communication
and navigation. It also studies the risks involved in incorporating autonomous
features to handle contingency situations.
The orbiter
weighs about 1,350 kg (including 852 kg of propellant) and includes five
instruments to conduct a series of remote-sensing experiments to achieve its scientific
objective. PSLV-C25 successfully interpolated the Spacecraft into an elliptical
parking Orbit around earth. The spacecraft first going into orbit around the
earth, departed towards the Red Planet on December 1, 2013. After a complex and
challenging journey of 300 days through deep space, it was put into the Mars
orbit on September 24, 2014. MOM covered 680 million km before getting into an
elliptical orbit, 80,000 km at its farthest to Mars and 365 km at its closest.
Hence, ISRO became the fourth space agency to successfully reach Mars after the
Soviet Union, NASA (USA)
and ESA (Europe).
The total cost
of the Mars Orbiter Mission was nearly Rs 450 crores. It is the most
inexpensive inter-planetary mission ever to be initiated. The low cost of the
mission was because of numerous factors, including less number of ground tests
and long (18-20 hour) working days for scientists.
Mars Orbiter
Mission published its first global view of Mars on September 28, 2014. The
Indian orbiter will have a functional life of at least six months around Mars.
Once the mission is accomplished, the spacecraft would not be permitted to
crash on the planet. There would be sufficient propellant to take the unmanned
spacecraft away from the Martian environment. The ISRO is currently planning to
send a second mission to Mars in the year 2017.
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