IRNSS stands for Indian Regional Navigation Satellite
System. 1A depicts that it’s the first
of seven IRNSS series.
The constellation
will consist of four satellites in geosynchronous orbits inclined at 29
degrees, with three more in geostationary orbit. IRNSS-1A is one of the
geosynchronous satellites, and is expected to be positioned at a longitude of
55 degrees east.
The IRNSS-1A satellite is based on the I-1K satellite bus
and has a fuelled mass of 1,425 kilograms (3,141 lb), or a dry mass of 614 kg
(1,354 lb).
It is powered by two solar arrays, which generate up to
1,660 watts of power. The spacecraft is expected to operate for ten years.
Monday’s launch, which marked the twenty-fourth flight of
the Polar Satellite Launch Vehicle, was designated as flight number C22.
Resource : Nasa
Space Flight
