GEO
Communications
TELKOM-2
C-band Commercial Communications Satellite
FACTS AT A GLANCE
Mission Description
Orbital built the TELKOM-2 C-band satellite for Indonesia’s state-owned telecommunications company,
PT Telekomunikasi Indonesia Tbk (Telkom). The contract included the satellite, a state-of-the-art ground
station and turn-key on-orbit delivery. The satellite operates in geosynchronous orbit at 118 degrees
East Longitude. TELKOM-2 replaced the on-orbit Palapa-B4 satellite allowing Telkom to expand its
satellite communications coverage area into the southeast Asian region and the Indian subcontinent in
addition to Indonesia.
The GEOStar™ Advantage
Orbital’s highly successful Geosynchronous Earth Orbit (GEO) communications satellites are based on
the company’s GEOStar spacecraft platform, which is able to accommodate all types of commercial
communications payloads and is compatible with all major commercial launchers. The company’s
GEOStar product line includes the GEOStar-2 design, which is optimized for smaller satellite missions
that can support up to 5.0 kilowatts of payload power. Orbital has also developed the higher-power
GEOStar-3 spacecraft design, delivering the next increment of payload power for applications between
5.0 and 8.0 kilowatts, allowing Orbital to offer its innovative and reliable satellite design to the
medium-class of communications satellites.
Coverage:
Southeast Asia and Indian Subcontinent
Mission:
C-band communications
Customer:
PT Telkomunikasi Indonesia Tbk (Telkom)
TELKOM-2 in Orbital’s Dulles, Virginia
satellite manufacturing facility
TELKOM-2
Specications
Spacecraft
Launch Mass: 1,930 kg (4,255 lb.)
Solar Arrays: Two panels per array, UTJ Gallium Arsenide cells
Stabilization: 3-axis stabilized; zero momentum system
Propulsion: Liquid bi-propellant transfer orbit system;
monopropellant (hydrazine) on-orbit system
Mission Life: 15 years
Orbit: 118
Payload
C-band
Repeater: Two groups of 15-for-12 linearized TWTAs
TWTA Power: 39 W RF at operating point
Antenna: Two 2.0 m dual grid shaped-beam reectors
Launch
Launch Vehicle: Ariane 5
Site: Kourou, French Guiana
Date: November 16, 2005
°
East Longitude
Mission Partners
PT Telekomunikasi Indonesia Tbk (Telkom)
The leading provider of local and long distance and mobile
communications in Indonesia
Orbital Sciences Corporation
Prime contractor including spacecraft bus, payload and
ground segment
Arianespace
Launch provider
TELKOM-2 was launched
aboard an Ariane 5 rocket.
Orbital Sciences Corporation
45101 Warp Drive
©2014 Orbital Sciences Corporation FS010_02_2998
•
Dulles, Virginia 20166
•
www.orbital.com
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