MOM Indian spacecraft
MOM, the Indian technology demonstration
|Automatic translation||Updated October 13, 2014|
Mars Orbiter Mission (MOM) is the name of India's first spacecraft to Mars. His Indian name is Mangalyaan meaning "Martian vehicle". The probe aluminum and carbon, was launched November 5, 2013 and was placed in orbit around Mars, 10 months later, September 24, 2014 after a tumultuous journey of 780 million kilometers.
The fourth maneuver which had to elevate the probe to the next orbit, was stopped early because of a small engine failure which resulted to reduce the extra boost, the probe was unable to accelerate as a speed 35 m/s instead of 135 m/s provided. So over the next maneuver, November 12, 2013, that Indian scientists have corrected the deficiency by increasing the apogee of 118 642 km, a slightly higher altitude than expected. It is for this reason that the fourth apogee (see image) is ≈78 000 km instead of ≈100 000 km find as expected. In the latest maneuver the final apogee was increased to 192 874 km Nov. 15, 2013.
Table: actual maneuvers in Earth orbits the MOM Indian probe since its launch (November 5, 2013) to its seventh orbit around the Earth (1 December 2013). The middle column shows the time pushing main engine of the probe to go from one orbit to the next.
Image: The orbitals maneuvers planned Indian probe around the Earth to be placed on an optimized trajectory to Mars. The probe used several times its main engine to benefit, on parabolic trajectories of the gravitational acceleration of the Earth. It as well compensated the weakness of the Indian launcher. Against part of the probe has a lot of fuel embark to reach sufficient speed and leave Earth's orbit then insert on a trajectory to Mars. The fourth maneuver which had to elevate the probe to the next orbit, was stopped early because of a small engine failure which resulted to reduce the extra boost, the probe was unable to accelerate as a speed 35 m/s instead of 135 m/s provided. © IsroNB: Mars Orbiter Mission has cost as $ 74 million, i.e. less than the Hollywood film Gravity with Sandra Bullock ($ 100 million) or the ninth of the cost of Maven Mission ($ 671 million) NASA which also put its Mars Orbit in November 2014. The low cost of the mission is due to various factors, few ground tests, simple design, load capacity minimized, reducing labor costs, especially reducing delays . Although MOM with 5 instruments (15 kilos) can not compete with MAVEN and 9 instruments (65 kilos) since MOM is primarily a mission from India, a technology demonstration, and then a scientific approach.