- 1. Mars Orbiter Mission is India'sfirst interplanetary mission
to planet Mars with an orbiter craft designed to orbit Mars in an
elliptical orbit. The Mission is primarily technological mission
considering the critical mission operations and stringent
2. The spacecraft configuration is a balanced mix of design from
flightproven IRS/INSAT/Chandrayaan-1 bus. Modifications required
for Mars mission are in the areas of Communication, Power,
Propulsion systems (mainly related to Liquid Engine restart after
nearly 10 months) and onboard autonomy. 390 litres capacity
propellant tanks accomodate a maximum of 852 kg of propellant which
is adequate with sufficient margins. A Liquid Engine of 440 N
thrust is used for orbit raising and insertion in Martian Orbit.
Antenna System consists of Low Gain Antenna (LGA), Medium Gain
Antenna (MGA), and High Gain Antenna (HGA). The High Gain Antenna
system is based on a single 2.2 meter reflector illuminated by a
feed at S-band. It is used to transmit/receive the Telemetry,
Tracking and Commanding (TTC) and data to/from the Indian Deep
Space Network 3. Of all the planets in the solarsystem, Mars has
sparked the greatest human interest. The conditions in Mars are
believed to be hospitable since the planet is similar to Earth in
many ways. For ages, humans have been speculating about life on
Mars. However, the question that is to be still answered is 4. A.
Technological Objectives:Design and realisation of a Mars orbiter
with a capabilityto survive and perform Earth bound manoeuvres,
cruise phase of 300 days, Mars orbit insertion / capture, and
on-orbit phase around Mars. Deep space communication, navigation,
mission planning and management. Incorporate autonomous features to
handle contingency situations.B. Scientific Objectives: Exploration
of Mars surface features, morphology, mineralogy andMartian
atmosphere by indigenous scientific instruments. 5. 16-11-2013The
fifth orbit raising manoeuvre of Mars OrbiterSpacecraft, starting
at 01:27 hrs(IST) on Nov 16, 2013, with a burn Time of 243.5
seconds has been successfully completed. The observed change in
Apogee is from 118642km to 192874km. 12-11-2013Fourth supplementary
orbit raising manoeuvre of Mars Orbiter Spacecraft, starting at
05:03:50 hrs(IST) on Nov 12, 2013, with a burn Time of 303.8
seconds has been successfully completed. The observed change in
Apogee is 11-11-2013In the fourth orbit-raising operation conducted
from 78276km to 118642km. this morning (Nov 11, 2013), the apogee
(farthest point to Earth) of Mars Orbiter Spacecraft was raised
from 71,623 km to 78,276 km by imparting an incremental velocity of
35 metres/second (as against 130 metres/second originally planned
to raise apogee to about 100,000 [1 lakh] km). The spacecraft
raising manoeuvre 09-11-2013The third orbitis in normal health. of
Mars Orbiter Spacecraft, starting at 02:10:43 hrs(IST) on Nov 09,
2013, with a burn time of 707 seconds has been successfully
completed. The observed change in Apogee is from 40186km to
71636km.
