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Intelsat 29e
Intelsat 29e, also known as IS-29e was a high throughput (HTS) geostationary communications satellite designed and manufactured by Boeing Satellite Development Center on the BSS 702MP satellite bus. It is the first satellite of the Intelsat EpicNG service, and covers North America and Latin America from the 50° West longitude, where it replaced Intelsat 1R. It also replaced Intelsat 805 which was moved from 56.5° West to 169° East. It has a mixed C-band, Ku-band and Ka-band payload with all bands featuring wide and the Ku- also featuring spot beams.It suffered a fuel leak in 2019 and declared a total loss.
The spacecraft was designed and manufactured by Boeing Satellite Development Center on the Boeing 702MP satellite bus. It has a launch mass of 6,552 kg (14,445 lb) and a design life of more than 15 years. When stowed for launch, the satellite measures 7.5 m × 3 m × 2 m (24.6 ft × 9.8 ft × 6.6 ft).
It is powered by two wings, with four solar panels each, of triple-junction GaAs solar cells, that span 44 m (144 ft) when deployed. Intelsat 29e can generate 15.8 kW at the end of its expected life and has four Li-ion batteries.
This three axis stabilized platform has a bi-propellant propulsion system using Nitrogen tetroxide (NTO) / N2O4. It has a 449 N (101 lbf) liquid apogee engine for orbit raising and 22 N (4.9 lbf) and 4 N (0.90 lbf) thrusters for station keeping. The propellant tanks hold approximately 1,550 kg (3,420 lb) of N2O4 and 2,000 kg (4,400 lb) of NTO. This new series of geosynchronous satellites lack an Earth Sensor, and thus enter Earth pointing attitude based on the orbital position as determined by the star tracker.
Its payload is the first high throughput EpicNG deployment, of the six planned as of January 2016. The EpicNG is characterized by the implementation of frequency reuse due to a mix of frequency and polarization in small spot beams. Not only applied to the classical High-throughput satellite Ka-band, but also applying the same technique in Ku-band and C-band. The EpicNG series also keep the use of wide beams to offer high throughput and broadcast capabilities in the same satellite.
The payload is designed and manufactured by Boeing based on the work of the Wideband Global SATCOM (WGS) constellation. It most innovative feature of this fully digital payload, is that it enables to dynamically link two sites through a single satellite without needing to go through a ground station.
In the case of Intelsat-29e, the C-band side has 14 physical transponders with a bandwidth 864 MHz Ku- or 24 transponder equivalent. It covers South America in a wide beam. The Ku-band has physical 56 transponders (249 transponder equivalent) for a total bandwidth of 9,395 MHz. The Ku- spot beams cover the Americas and the North Atlantic route, while a wide beam can broadcast to North America and North Atlantic. The Ka-band payload has 450 MHz of bandwidth on a global beam centered at its position.
In July 2009, Intelsat became the first customer of the Boeing 702MP platform, when it placed an order for four spacecraft, Intelsat 21, Intelsat 22, Intelsat 27 and what would become Intelsat 29e.
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Intelsat 29e
Intelsat 29e, also known as IS-29e was a high throughput (HTS) geostationary communications satellite designed and manufactured by Boeing Satellite Development Center on the BSS 702MP satellite bus. It is the first satellite of the Intelsat EpicNG service, and covers North America and Latin America from the 50° West longitude, where it replaced Intelsat 1R. It also replaced Intelsat 805 which was moved from 56.5° West to 169° East. It has a mixed C-band, Ku-band and Ka-band payload with all bands featuring wide and the Ku- also featuring spot beams.It suffered a fuel leak in 2019 and declared a total loss.
The spacecraft was designed and manufactured by Boeing Satellite Development Center on the Boeing 702MP satellite bus. It has a launch mass of 6,552 kg (14,445 lb) and a design life of more than 15 years. When stowed for launch, the satellite measures 7.5 m × 3 m × 2 m (24.6 ft × 9.8 ft × 6.6 ft).
It is powered by two wings, with four solar panels each, of triple-junction GaAs solar cells, that span 44 m (144 ft) when deployed. Intelsat 29e can generate 15.8 kW at the end of its expected life and has four Li-ion batteries.
This three axis stabilized platform has a bi-propellant propulsion system using Nitrogen tetroxide (NTO) / N2O4. It has a 449 N (101 lbf) liquid apogee engine for orbit raising and 22 N (4.9 lbf) and 4 N (0.90 lbf) thrusters for station keeping. The propellant tanks hold approximately 1,550 kg (3,420 lb) of N2O4 and 2,000 kg (4,400 lb) of NTO. This new series of geosynchronous satellites lack an Earth Sensor, and thus enter Earth pointing attitude based on the orbital position as determined by the star tracker.
Its payload is the first high throughput EpicNG deployment, of the six planned as of January 2016. The EpicNG is characterized by the implementation of frequency reuse due to a mix of frequency and polarization in small spot beams. Not only applied to the classical High-throughput satellite Ka-band, but also applying the same technique in Ku-band and C-band. The EpicNG series also keep the use of wide beams to offer high throughput and broadcast capabilities in the same satellite.
The payload is designed and manufactured by Boeing based on the work of the Wideband Global SATCOM (WGS) constellation. It most innovative feature of this fully digital payload, is that it enables to dynamically link two sites through a single satellite without needing to go through a ground station.
In the case of Intelsat-29e, the C-band side has 14 physical transponders with a bandwidth 864 MHz Ku- or 24 transponder equivalent. It covers South America in a wide beam. The Ku-band has physical 56 transponders (249 transponder equivalent) for a total bandwidth of 9,395 MHz. The Ku- spot beams cover the Americas and the North Atlantic route, while a wide beam can broadcast to North America and North Atlantic. The Ka-band payload has 450 MHz of bandwidth on a global beam centered at its position.
In July 2009, Intelsat became the first customer of the Boeing 702MP platform, when it placed an order for four spacecraft, Intelsat 21, Intelsat 22, Intelsat 27 and what would become Intelsat 29e.