GSAT-15, India’s latest Communication Satellite is a high power satellite being inducted into the INSAT/GSAT system. Weighing 3164 kg at lift-off, GSAT-15 carried a total of 24 communication transponders in Ku-band as well as a GPS Aided GEO Augmented Navigation (GAGAN) payload operating in L1 and L5 bands. GSAT-15 is the third satellite to carry GAGAN payload after GAST-8 and GSAT-10, which are already providing navigation services from orbit. GSAT-15, carried a Ku-band beacon as well to help in accurately pointing ground antennas towards the satellite.

GSAT-15 was launched by Ariane-5 VA-227 launch vehicle from Kourou, French Guiana on early morning of November 11, 2015

Mission	Communication and Satellite Navigation
Weight	3164 kg (Mass at Lift – off) 1440 kg (Dry Mass)
Power	Solar array providing 6200 Watts and Three 100 AH Lithium-Ion batteries
Propulsion	Bi- propellant System
Launch date	November 11, 2015
Launch site	Kourou, French Guiana
Launch vehicle	Ariane-5 VA-227
Orbit	Geostationary (93.5° East longitude) Co-located with INSAT-3A and INSAT-4B
Mission life	12 Years