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Star bus
Starbus-C
Starbus-C
American communications satellite bus. The Orbital Star bus was designed for reliable and robust performance in a variety of LEO and GEO missions.

AKA: Indostar;Mexsat;Orbital Star;Star-2 bus. Status: Operational 1997. First Launch: 1997-11-12. Last Launch: 2015-05-27. Number: 34 . Gross mass: 1,620 kg (3,570 lb).

Orbital's turn-key approach included the GEO satellite, launch services, ground stations, user systems and business support. The STAR GEO platform was designed for a 15-year mission life. STAR GEO Payload options included: C-, Ku-, Ka-, S-, Hybrid-band frequencies; payload power from 500 to 4,500 W; up to 42 transponders; shaped beams or spots with up to two deployable and one deck-mounted antenna systems.

Orbital's Star 1 bus and had a launch mass of 1298 kg. It carried a Thiokol Star 30 solid apogee motor and a set of station-keeping thrusters with 200 kg of propellant. The improved Star 2 satellite bus had a dry mass around 800 kg . It used an Orbital hydrazine/nitrogen tetroxide liquid apogee propulsion system with a 500N thrust apogee engine developed by Japan's IHI.

The Orbital Star bus was a flight-proven design that could deliver reliable and robust performance for a variety of LEO and GEO missions. Orbital's turn-key approach included the GEO satellite, launch services, ground stations, user systems and business support. The STAR GEO platform was designed for a 15-year mission life. STAR GEO Payload options included: C-, Ku-, Ka-, S-, Hybrid-band frequencies; payload power from 500 to 4,500 W; up to 42 transponders; shaped beams or spots with up to two deployable and one deck-mounted antenna systems.

A new era for Orbital began in November 1997 when its first GEO satellite, IndoStar-1, was launched aboard an Ariane 4 rocket from Kourou, French Guiana. Orbital built the IndoStar-1 satellite for Media Citra Indovision to deliver the first direct-to-home (DTH) satellite television to Indonesia, the world's fourth most populous county.

IndoStar-1 was the world's first commercial communications satellite to use S-band frequencies, which efficiently penetrated the atmosphere and provided high-quality transmissions to small-diameter antennas in regions that experience heavy rainfall such as Indonesia. Similar performance was not economically feasible with comparable Ku- or C-band DTH satellite systems since more power was required in these bands to penetrate the moist atmosphere.

Under the $175 million contract, Orbital served as the prime contractor for the turn-key system, including the space, ground and user segments. Specifically, Orbital provided:

  • The complete INDOVISION satellite television broadcasting system, including total system engineering
  • Coordination of activities for the Ariane 4 launch
  • The ground station for spacecraft telemetry, tracking, control and monitoring
  • Design and engineering management of the integrated receiver and decoder units
  • Subscriber management and conditional access security systems
  • Complete program risk management, system operations and maintenance
  • Customer: Media Citra Indovision (MCI) - Jakarta, Indonesia
  • Mission: Provide direct broadcast television to Indonesia (high quality digital transmission, approximately 40 TV channels)
  • Performance: Launch mass - 1,350 kg
  • Mission life - 12 years
  • Status: Satellite was launched via Ariane (V102) in November 1997

In early 2001, Orbital firmly established itself as a major U.S. GEO satellite supplier with a contract from PanAmSat Corporation, which owned and operated one of the world's largest private fleets of commercial GEO communications satellites. Orbital was selected to supply one C-band GEO satellite designated Galaxy XII to be located at 72 deg W longitude. In late 2001 PanAmSat exercised an option for two additional C-band spacecraft. The satellites were to distribute entertainment and information to cable television systems, TV broadcast affiliates, direct-to-home TV operators, Internet service providers, telecommunications companies and corporations.

Characteristics of this version of the Star bus were:

  • Customer: PanAmSat Corporation - Greenwich, Connecticut
  • Mission: C-band communications for CONUS, Alaska and Hawaii
  • Performance: Repeater - two groups of 16:12 linearized traveling wave tube assemblies (TWTAs)
  • Transponder Power - 37 watts RF at saturation at EOL
  • Stabilization - 3-axis, zero momentum
  • Launch mass - 1,760 kg
  • Mission life - 15 years (>15 years of fuel)
  • Status: Galaxy XII launch expected in early 2003.


More at: Star bus.

Subtopics

Indostar 1 (Cakrawarta 1) Communication satellite built by CTA => Orbital Sciences Corporation (OSC) for Media Citra Indovision (MCI), Indonesia. Launched 1997. Used the Star-1 bus.

BSat 2a, 2b Communication satellite built by Orbital Sciences Corporation (OSC) for Broadcasting Satellite System Corporation (B-SAT), Japan. Launched 2001. Used the Star-1 bus.

N-Star c Communication satellite built by Lockheed Martin (prime), Orbital Sciences Corporation (OSC) (Bus) for NTT-DoCoMo, Japan. Launched 2002. Used the Star-2 Bus bus.

Galaxy 12, 14, 15 Communication satellite built by Orbital Sciences Corporation (OSC) for PanAmSat, USA. Launched 2003 - 2005. Used the Star-2 Bus bus.

BSat 2c Communication satellite built by Orbital Sciences Corporation (OSC) for Broadcasting Satellite System Corporation (B-SAT), Japan. Launched 2003. Used the Star-1 bus.

Galaxy 15 Communication satellite built by Orbital Sciences Corporation (OSC) for PanAmSat, USA. Launched 2005. Used the Star-2 Bus bus.

Telkom 2 Communication satellite built by Orbital Sciences Corporation (OSC) for PT Telekomunikasi Indonesia (PT Telkom), Indonesia. Launched 2005. Used the Star-2 Bus bus.

Optus D1 Communication satellite built by Orbital Sciences Corporation (OSC) for Optus Networks, Pty., Australia. Launched 2006. Used the Star-2.4 Bus bus.

Intelsat 11 Communication satellite built by Orbital Sciences Corporation (OSC) for PanAmSat => Intelsat, USA. Launched 2007. Used the Star-2 Bus bus.

Optus D2, D3 Communication satellite built by Orbital Sciences Corporation (OSC) for Optus Networks, Pty., Australia. Launched 2007 - 2009. Used the Star-2.4 Bus bus.

Horizons 2 Communication satellite built by Orbital Sciences Corporation (OSC) for PanAmSat & JSat, USA. Launched 2007. Used the Star-2 Bus bus.

Thor 5 Communication satellite built by Orbital Sciences Corporation (OSC) for Telenor, Norway. Launched 2008. Used the Star-2 Bus bus.

AMC 21 Communication satellite built by Alcatel Alenia Space (prime), Orbital Sciences Corporation (OSC) (bus) for SES Americom, USA. Launched 2008. Used the Star-2 Bus bus.

NSS 9 Communication satellite built by Orbital Sciences Corporation (OSC) for SES New Skies, Netherlands. Launched 2009. Used the Star-2 Bus bus.

MEASAT 3a Communication satellite built by Orbital Sciences Corporation (OSC) for MEASAT Satellite Systems Sdn. Bhd., Malaysia. Launched 2009. Used the Star-2 Bus bus.

Intelsat 15 (JCSat 85) Communication satellite built by Orbital Sciences Corporation (OSC) for PanAmSat => Intelsat, USA. Launched 2009. Used the Star-2.4 Bus bus.

Intelsat 16 Communication satellite built by Orbital Sciences Corporation (OSC) for PanAmSat => Intelsat, USA. Launched 2010. Used the Star-2.4 Bus bus.

SES 1, 2, 3 Communication satellite built by Orbital Sciences Corporation (OSC) for SES Americom => SES World Skies, USA. Launched 2010 - 2011. Used the Star-2.4 Bus bus.

Koreasat 6 (Olleh 1) Communication satellite built by Thales Alenia Space (prime), Orbital Sciences Corporation (OSC) (bus) for KT Corporation (formerly Korea Telecom), Korea South. Launched 2010. Used the Star-2 Bus. Launched 2010.

New Dawn / Intelsat 28 Communication satellite built by Orbital Sciences Corporation (OSC) for Intelsat, USA. Launched 2011. Used the Star-2.4 Bus bus.

Intelsat 18 Communication satellite built by Orbital Sciences Corporation (OSC) for Intelsat, USA. Launched 2011. Used the Star-2.4 Bus bus.

HYLAS 2 Communication satellite built by Orbital Sciences Corporation (OSC) for Avanti Communications Group plc, UK. Launched 2012. Used the Star-2.4 Bus bus.

Intelsat 23 Communication satellite built by Orbital Sciences Corporation (OSC) for Intelsat, USA. Launched 2012. Used the Star-2.4E Bus bus.

Star One C3 Communication satellite built by Orbital Sciences Corporation (OSC) for Star One (EMBRATEL), Bolivarsat, Brazil. Launched 2012. Used the Star-2.4 Bus bus.

MEXSAT 3 (Bicentenario) Communication satellite built by Orbital Sciences Corporation (OSC) for Secretaria de Communicaciones y Transportes (SCT) of MTxico, Mexico. Launched 2012. Used the Star-2.4 Bus bus.

Azerspace/Africasat 1a Communication satellite built by Orbital Sciences Corporation (OSC) for Ministry of Communications and Information Technologies of the Republic of Azerbaijan, MEASAT Satellite Systems Sdn. Bhd., Azerbaijan. Launched 2013. Used the Star-2 Bus. Launched 2013.

OHO 1 Communication satellite built by Thales Alenia Space (payload), Orbital Sciences Corporation (OSC) (bus) for OverHorizon. Used the Star-2.3 Bus bus.

Family: Communications, Geosynchronous orbit. Country: USA. Engines: BT-4. Launch Vehicles: R-7, Proton, Ariane, Ariane 44L, Ariane 5, Ariane 5G, Proton-M/Briz-M, Soyuz-FG, Ariane 5ECA, Ariane 5GS, Zenit-3SLB, Falcon 9. Projects: Galaxy, Intelsat. Launch Sites: Baikonur, Baikonur LC31, Cape Canaveral LC40, Baikonur LC81/24, Kourou, Baikonur LC200/39, Baikonur LC45/1, Kourou ELA2, Kourou ELA3. Agency: SES, OSC, BSAT, Indostar. Bibliography: 2, 296, 4, 552, 554, 13202, 13203, 13204, 13205, 13206, 13207, 13208, 13209, 13210, 13211, 13212, 13213, 13214, 13215.
Photo Gallery

Amazonas 4AAmazonas 4A
Credit: Manufacturer Image


AMC 21AMC 21
Credit: Manufacturer Image


SES 1SES 1
Credit: Manufacturer Image


Starbus / N-StarStarbus / N-Star


Azerspace/Africasat Azerspace/Africasat
Credit: Manufacturer Image


BSAT-2aBSAT-2a
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BSAT-2cBSAT-2c
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Galaxy 12Galaxy 12
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Galaxy 15Galaxy 15
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Horizons 2Horizons 2
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Hylas 2Hylas 2
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Cakrawarta 1Cakrawarta 1
Credit: Manufacturer Image


Intelsat IS-15Intelsat IS-15
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Intelsat 16Intelsat 16
Credit: Manufacturer Image


Intelsat 18Intelsat 18
Credit: Manufacturer Image


Intelsat IS-23Intelsat IS-23
Credit: Manufacturer Image


Koreasat 6Koreasat 6
Credit: Manufacturer Image


Measat 3AMeasat 3A
Credit: Manufacturer Image


MEXSAT 3MEXSAT 3
Credit: Manufacturer Image


New Dawn → InteNew Dawn → Inte
Credit: Manufacturer Image


NSS 9NSS 9
Credit: Manufacturer Image


NStar cNStar c
Credit: Manufacturer Image


OHO 1OHO 1
Credit: Manufacturer Image


Optus D2Optus D2
Credit: Manufacturer Image


Optus D1Optus D1
Credit: Manufacturer Image


Intelsat IS-11Intelsat IS-11
Credit: Manufacturer Image


SES-8SES-8
Credit: Manufacturer Image


Star One C3Star One C3
Credit: Manufacturer Image


Telkom 2Telkom 2
Credit: Manufacturer Image


Thor 5Thor 5
Credit: Manufacturer Image



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