Telkom-3S

Telkom-3S is an Indonesian geostationary communications satellite built as a replacement of Telkom-3 that was lost due to a launch failure on 6 August 2012.^[2] Telkom-3S was successfully launched on 14 February 2017, at 21:39 UTC^[3] and commissioned into service on 17 April 2017.^[4]

Telkom-3S

Mission type	Communications
Operator	Telkom Indonesia
COSPAR ID	2017-007A
SATCAT no.	41944
Website	https://www.telkom.co.id/sites
Mission duration	16 years (planned) 8 years, 5 months and 19 days (in progress)
Spacecraft properties
Spacecraft	Telkom-3S
Spacecraft type	Spacebus
Bus	Spacebus-4000B2
Manufacturer	Thales Alenia Space
Launch mass	3,550 kg (7,830 lb)
Dimensions	1.8 m x 2.95 m x 2.86 m
Power	6.4 kW
Start of mission
Launch date	14 February 2017, 21:39 UTC
Rocket	Ariane 5ECA (VA235)
Launch site	Centre Spatial Guyanais, Kourou, ELA-3
Contractor	Arianespace
Entered service	17 April 2017
Orbital parameters
Reference system	Geocentric orbit[1]
Regime	Geostationary orbit
Longitude	118° East
Transponders
Band	42 transponders: 24 C-Band 8 Extended C-Band 10 Ku-Band
Coverage area	Indonesia, Southeast Asia, Malaysia
Palapa constellation ← Telkom-3 Telkom-4 →

Satellite description

Telkom-3S is fitted with 24 C-Band transponders, 8 extended C-Band transponders and 10 Ku-Band transponders. The C-band payload will cover Indonesia and Southeast Asia, while the extended C-band payload will cover both Indonesia and part of Malaysia. The Ku-band payload will specifically cover Indonesia. Telkom-3S will provide high-definition television (HDTV) services along with mobile communications and internet applications.