Progress & Challenges:

♤ Till now, India has launched two satellites, IRNSS-1A and 1B successfully.

♤ In IRNSS, we are utilizing geostationary satellites instead of MEO (Medium Earth Orbit) satellites and thus the receiver antenna size may offer some challenges. Since S-band frequency has never been used in the past few experts are of the opinion that the problems could arise in miniaturizing the receiver antenna for S-band.

♤ Also, since the satellites are positioned at high elevation, they could restrict the system for providing accurate indoor applications.