Rahul Sharma (Editor)

Telkom 2

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Mission type
  
Communications

COSPAR ID
  
2005-046A

Mission duration
  
15 years

Inclination
  
0.03°

Period
  
24 hours

Launch date
  
16 November 2005

Operator
  
PT Telkom

SATCAT no.
  
28902

Manufacturer
  
Orbital Sciences

Inclination
  
0.03°

Launch mass
  
1,930 kg

Bus
  
GEOStar-2

Telkom-2 httpswwwsatbeamscomimagesfootprints118EC

Similar
  
Telkom 1, JCSAT‑2A, JCSAT‑5A, Superbird‑C2, Intelsat 8

Telkom-2 is a C-band geosynchronous communications satellite built by Orbital for Indonesia's state-owned telecommunications company, PT Telekomunikasi Indonesia Tbk (PT Telkom). TELKOM-2 was successfully launched November 16, 2005, and positioned in geosynchronous orbit, 22,300 miles above the Earth, at 118°E (0°N 118°E / 0; 118).

Based on Orbital's highly successful and flight-proven STAR-2 spacecraft platform, TELKOM-2 features state-of-the-art communications satellite technology, and 24 C-band transponders. The new spacecraft will replace PT Telkom's on-orbit Palapa-B4 satellite, improve communications coverage across Indonesia, and allow PT Telkom to expand its coverage area into southeast Asia and the Indian subcontinent.

In addition to providing the spacecraft bus and payload, Orbital is supplementing Telkom's existing ground station through the addition of a state-of-the-art ground station including all hardware and software. Orbital is also providing extensive mission operations support.

There are several postpones exist before Telkom-2 was launched. Three postpones happened on November 2005 because of technical problems with Ariane 5 rocket. Other postpones happened during November 2004 until October 2005 with different problems including technical problem with Telkom-2.

Orbital's contract with PT Telkom includes an optional order for another geosynchronous satellite.

Specification of Telkom-2 Satellite

  • Owner: PT Telkomunikasi Indonesia Tbk (PT Telkom)
  • Mission: C-band communications for Indonesia
  • Performance: Repeater - two groups of 15-for-12 linearized traveling wave tube assemblies (TWTAs)
  • Transponder Power - 39 watts RF
  • Stabilization - 3-axis, zero momentum
  • Launch mass - 1,930 kg
  • Mission life - 15 years (>15 years of fuel)
  • Launched on November 16, 2005 by Ariane 5 ECA rocket in Guiana Space Centre in Kourou, French Guiana
  • Redundancy: Full dual string
  • Solar arrays: 2 panel wings with improved triple-junction Gas cells
  • Propulsion: Liquid bi-propellant transfer orbit system; monopropellant (hydrazine) on-orbit
  • Frequency: C-band
  • Repeater: Two groups of 15-for-12 linear traveling wave tube assemblies (TWTAs)
  • Antenna: Two 2.0 m (6.6 ft.) dual-griddled shaped-beam reflectors
  • References

    Telkom-2 Wikipedia