GSAT-15

GSAT-15 is an Indian communication satellite similar to GSAT-10 to augment the capacity of transponders to provide more bandwidth for Direct-to-Home television and VSAT services. It was successfully launched on 10 November 2015 at 21:34:07 UTC aboard an Ariane 5 rocket, along with the ArabSat 6B satellite.^[6]

GSAT-15

Mission type	Communications
Operator	ISRO
COSPAR ID	2015-065A
SATCAT no.	41028
Website	GSAT-15
Mission duration	Planned: 12 years[1] Elapsed: 9 years, 9 months, 19 days
Spacecraft properties
Bus	I-3K
Manufacturer	ISRO Satellite Centre Space Applications Centre
Launch mass	3,164 kg (6,975 lb)[1]
Dry mass	1,440 kg (3,175 lb)[1]
Power	6,200 watts[1]
Start of mission
Launch date	10 November 2015, 21:34:07 (2015-11-10UTC21:34:07) UTC[2][3]
Rocket	Ariane 5 ECA, VA-227[2]
Launch site	Kourou ELA-3
Contractor	Arianespace
Entered service	4 January 2016[4]
Orbital parameters
Reference system	Geocentric
Regime	Geostationary
Longitude	93.5° E
Perigee altitude	35,774 km (22,229 mi)
Apogee altitude	35,799 km (22,244 mi)
Inclination	0.0728°
Epoch	11 June 2017, 00:27:58 UTC[5]
Transponders
Band	24 × Ku band
Bandwidth	36 MHz
GSAT ← GSAT-6 GSAT-18 →

Payload

The satellite carries 24 K_u band transponders and a GAGAN navigational payload operating in the L1 and L5 bands.^[1][7] Besides that it will also carry 2 K_u band beacons.^[1]

Satellite

GSAT-15 has an estimated lifespan of 12 years. It will augment telecommunication, Direct-to-Home and radio navigation services.^[8][9]

Cost

Cost of launch and insurance: about ₹860 Crore.^[10]

See also

• Spaceflight portal

• Indian Regional Navigation Satellite System
• Global Navigation Satellite System
• Global Positioning System