Abstract

Mars Orbiter Mission (MOM) is India’s first interplanetary mission conceived and executed to demonstrate ISRO’s technical capabilities and also to perform science experiments around Mars with indigenously developed scientific instruments. Mars Orbiter Mission spacecraft was built at ISRO Satellite Centre - Bangalore with payloads contributed by Space Application Centre - Ahmedabad, Space Physics Laboratory of Vikram Sarabhai Space Centre – Thiruvananthapuram and Laboratory for Electro Optics Sensor- Bangalore. The MOM spacecraft was launched from Satish Dhawan Space Centre - Shriharikota on November 5th 2013 by Polar Satellite Launch Vehicle – XL, India’s workhorse launch vehicle.

The execution of MOM project involving various disciplines like satellite making, payloads realisation, launch vehicle adoptability, mission design and development and providing navigational solutions in a very short period of time - less than two years was a major challenge for ISRO. The findings of the study committee were used as the basic guidelines for the mission design and the vast experience of ISRO was used to adopt and modify various heritage systems for the Mars mission.

The challenging areas of the mission were launch vehicle mission design, spacecraft system design like propulsion sytem (restart of liquid engine after nearly 300 days of hibernation), power system (solar panel to cater for requirements of both earth and martian phases), deepspace communication system (very long distance and varied on- board gain requirements), incorporation of host of on-board autonomy features (very long time of travel for signals), thermal control systems (optimization of hardware for varied environments between earth and martian phases) and design, development and qualification of deepspace mission specific hardware like Delta Differntial Oneway Ranging instrument for the first time. Providing navigational solutions with utmost precision for critical events like earth bound maneuvers, Trans Mars Injection, Trajectory Correction Maneuvers and Mars Orbit Injection was another area of major challenge successfully overcome by ISRO.

The presentation provides more details of above aspects of Indian Mars Orbiter Mission.

Brief Biography of Mr. S. Arunan

Shri. S. Arunan joined VIkram Sarabhai Space Centre (VSSC) of Indian Space Research Organisation in the year 1985 after completing graduation in Engineering from Madras University. Before joining ISRO Satellite Centre (ISAC), Bangalore at 1998, he worked as Project Engineer and Project Manager in the areas of Cryogenic Propulsion for GSLV and Control System for PSLV in Vikram Sarabhai Space Centre.

He held the positions of Deputy Project Director for Technology Experiment Satellite (TES), Cartosat-1, Chandrayaan-1 and Associate Project Director for Chandrayaan-2 before he took up current responsibility of Project Director, Mars Orbiter Mission.

Abstract:

The top buzzwords in telecom today are IoT, 5G and SDN. First, I will briefly review these notions and discuss how they can transform the telecom networks of today. Then, I will discuss what we can do, especially from India, to make an impact in these areas. Finally, I will summarize our experience in developing Tejas Networks over the last 15 years into a telecom product company from Bangalore.

Biography:

Kumar N. Sivarajan serves as the Chief Technology Officer and is responsible for setting the technology and product direction for Tejas Networks. Prior to cofounding Tejas Networks, Kumar was an Associate Professor in the ECE Department, at IISc, and has recently rejoined ECE as an Adjunct Faculty member. Earlier he has worked with the IBM Thomas J. Watson Research Center, Yorktown Heights, New York.

Kumar is co-author of the textbook `Optical Networks: A Practical Perspective' published in February 1998. He is a Fellow of the Indian National Academy of Engineering and a recipient of the Swarnajayanti Fellowship from the Department of Science & Technology. He is also a recipient of the IEEE Fortescue Fellowship and the IEEE Baker Prize Paper Award.

Kumar holds a B. Tech. in EE (Electronics) from IIT, Madras, and a Ph.D. in EE from the California Institute of Technology. He is a distinguished alumnus of IIT, Madras.