Mars Orbiter Mission
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Mars Orbiter Mission (MOM), India's first interplanetary mission to planet Mars was launchedonboard PSLV-C25 on November 05, 2013. ISRO has become the fourth space agency to successfully send a spacecraft to Mars orbit.Though the designed mission life is 6 months, MOM completed 7 years in its orbit on Sept 24, 2021.
The objectives of this mission are primarily technological and include design, realisation and launch of a Mars Orbiter spacecraft capable of operating with sufficient autonomy during the journey phase; Mars orbit insertion / capture and in-orbit phase around Mars. MOM carries five scientific payloads to study the Martian surface features, morphology, mineralogy and Martian atmosphere.
Mars continues to be an object of keen interest to scientists in the context of planetary evolution and extra-terrestrial life. Based on our understanding of Mars, which was thought to be probably a warm and wet planet earlier, is now seen to be dry with a thin atmosphere. How this evolution has taken place is still a topic of research. In this backdrop, the Indian Mars Orbiter Mission carried the following five scientific payloads:
The main objective of the Mars Colour camera therefore is:
The salient features of this instrument are given below: -
The Primary science objective of this payload is to detect and measure methane concentration in Martian atmosphere (if it does exist) under clear sky conditions.Other studies which are possible are:
The instrument features are given below: -
This spectrometer operates in the thermal infrared (TIR) region (7 micron to 13 micron). TIS has been configured with an un-cooled micro-bolometer array that saves significantly in terms of weight and power when compared to a cooled IR detector. This payload is developed by Space Applications Centre, Ahmedabad.
The instrument features are:
MENCA, a quadrupole mass spectrometer, consists of a filament, detectors and associated electronics system. The detectors being used in MENCA are Channel Electron Multiplier (CEM) and Faraday Cup (FC). A suitable combination of Radio Frequency and DC voltages are applied to the alternate pairs of quadrupole rods to accomplish the mass separation and thereby the determination of partial pressure of species. Also, MENCA has an in-built pressure gauge for the measurement of total pressure. In addition to acquiring the mass spectra in a specified mass range (which can be varied), the instrument has a provision to study the time-evolution of a set of selectable species in the trend mode of operation. The dynamic range of the instrument is in the order of 1010.
Major science results
Scientific analysis of the data being received from the Mars Orbiter spacecraft is in progress. Scientific Data archived at ISSDC is made available to user communities.