Names | Eutelsat 3 F-1 Eutelsat W1 (pre-launch) Eutelsat W5 (2002-2012) Eutelsat 70A (2012-2013) Eutelsat 25C (2013-2014) Eutelsat 33B (2014-2015) |
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Mission type | Communications |
Operator | Eutelsat S.A. |
COSPAR ID | 2002-051A |
SATCAT no. | 27554 |
Website | https://www.eutelsat.com/en/home.html |
Mission duration | 12 years (planned) 13 years (achieved) |
Spacecraft properties | |
Spacecraft | Eutelsat W5 |
Spacecraft type | Spacebus |
Bus | Spacebus-3000B2 |
Manufacturer | Alcatel Space |
Launch mass | 3,170 kg (6,990 lb) |
Dry mass | 1,400 kg (3,100 lb) |
Dimensions | 4.6 m × 2.5 m × 1.8 m (15.1 ft × 8.2 ft × 5.9 ft) Span on orbit: 29 m (95 ft) |
Power | 5.9 kW |
Start of mission | |
Launch date | 20 November 2002, 22:39:00 UTC |
Rocket | Delta 4M+(4,2) (s/n D293) |
Launch site | Cape Canaveral, SLC-37B |
Contractor | Boeing |
Entered service | January 2003 |
End of mission | |
Disposal | Graveyard orbit |
Deactivated | October 2015 |
Orbital parameters | |
Reference system | Geocentric orbit [1] |
Regime | Geostationary orbit |
Transponders | |
Band | 24 Ku-band |
Bandwidth | 72 MHz |
Coverage area | Europe, Middle East, Asia |
Eutelsat 33B, formerly known as Eutelsat 3F1, Eutelsat W1, Eutelsat W5, Eutelsat 70A and Eutelsat 25C, is a telecommunications satellite owned by Eutelsat Consortium. [2] Eutelsat W5 provides coverage to Europe, Middle East, and Asia. The satellite can use either six steerable beams or two fixed beams to provide the coverage.
Eutelsat W1 was built by Aérospatiale and is a Spacebus-3000B2 satellite. [2] The satellite measures 4.6 m × 2.5 m × 1.8 m (15.1 ft × 8.2 ft × 5.9 ft) and has a span of 29 m (95 ft) on orbit. Eutelsat W1 features three axis stabilization to help keep it stable and pointed at the Earth at all times. It features twenty-four Ku band transponders. It was used to provide video distribution and contribution links, occasional-use video as well as Internet backbone connections. [3]
The original Eutelsat W1 satellite was damaged during construction by a malfunctioning fire extinguishing system. During testing, when the factory where it was being built caught fire. The cause of the fire was determined to be a carbon fiber wall which got too hot when the antennas were pointed at it and turned up on full power. The satellite was covered in water causing extensive damage. [2] It was declared a total loss, but was later reconstructed and completed as Eutelsat W5. [4]
Eutelsat 70A was the first satellite to be launched by a Delta IV launch vehicle. The launch was originally scheduled for January 2001, but was delayed several times due to developmental problems with the Delta IV. On 27 March 2007, Eutelsat 70A began drifting west at a rate of 0.004° per day. It is not known why this began to happen. [5] On 16 June 2008, a power generation anomaly occurred and four transponders were permanently lost. It was later revealed that one of the two solar panels was lost because the array's drive motor failed. [2]
In 2013, it was replaced by Eutelsat 70B at 70° East [3] and was then moved to 25° East where it was renamed to Eutelsat 25C. [6]
In October 2015, Eutelsat 33B was deactivated because of the loss of its second solar panel. [7]
Hot Bird is a group of satellites operated by Eutelsat, located at 13°E over the equator and with a transmitting footprint over Asia, Europe, North Africa, Americas and the Middle East.
Spacebus is a satellite bus produced at the Cannes Mandelieu Space Center in France by Thales Alenia Space. Spacebuses are typically used for geostationary communications satellites, and seventy-four have been launched since development started in the 1980s. Spacebus was originally produced by Aérospatiale and later passed to Alcatel Alenia Space. In 2006, it was sold to Thales Group as Thales Alenia Space.
Eutelsat 133 West A is a Eutelsat operated Eurobird satellite, used primarily for digital television. It was launched in March 2001, and after a short period testing at 33°E, joined Eutelsat 2F4 at 28.5°E in the Clarke Belt, just within the range of satellite dishes pointed at SES' Astra 2 satellites at 28.2° east. It moved to 33° east and joined Eutelsat 33B in July 2015. Then it was moved to 133° west.
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Türksat 2A, a.k.a. Eurasiasat 1, was a Turkish communications satellite as part of a project to form an instant network with two geosynchronous satellites that is supervised by the companies Türksat A.Ş. in Turkey and Eurasiasat SAM in Monaco.
Astra 28.2°E is the name for the group of Astra communications satellites co-located at the 28.2° East position in the Clarke Belt that are owned and operated by SES based in Betzdorf, Luxembourg. It is one of the major TV satellite positions serving Europe.
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Nahuel 1A was a Spacebus 2000NG satellite manufactured Dornier Satellitensysteme as prime contractor with Aérospatiale of Cannes-Mandelieu supplying the bus. It was launched on January 30, 1997 by an Ariane 44L launcher along companion GE-2. The satellite was located in the 71.8 degrees West slot. It was operated by Nahuelsat S.A., the first satellite operator of Argentina from its ground station in Benavidez, province of Buenos Aires. It was transferred in 2006 ARSAT S.A., along all other Nahuelsat S.A. assets. Satellite mass was 1,790 kg (3,950 lb) wet, 828 kg (1,825 lb) dry with a nominal lifetime of 12.33 years. It had eighteen 54 MHz transponders implemented with 55W TWTAs in three Ku band and extended Ku band coverages. Thus, it had 27 transponder equivalent or 972 MHz of Ku Band bandwidth.
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Eutelsat 70B is a commercial communications satellite run by Eutelsat. It was launched on 3 December 2012 and is designed to provide telecommunication services for the Middle East, Central Asia, South East Asia and parts of Africa. It will replace Eutelsat 70A, which was previously known as Eutelsat W5. That satellite, which was launched in 2002, currently occupies the same 70.5° E location this satellite is intended for.
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Eutelsat 8 West C, known as Hot Bird 6 prior to 2012 and Hot Bird 13A from 2012 to 2013, is a geostationary communications satellite. Operated by Eutelsat, it provides direct-to-home (DTH) broadcasting services from geostationary orbit. The satellite was part of Eutelsat's Hot Bird constellation at a longitude of 13° East, until it was relocated to 8° West between July 2013 and August 2013.
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