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Thales Alenia Space: Spacebus-3000/4000 B-Class

Eutelsat W1 (Spacebus 3000B2) [Alcatel]

AMC 9 (Spacebus 3000B3) [Alcatel]
The Spacebus 3000/-4000 B-Class family offers a full range of satellite solutions for
fixed, mobile et broadcasting services. It is offered with two kinds of avionic suites,
which are called Spacebus 3000 or 4000, depending on whether it is fitted with avionics
using a 50-volt or 100-volt power bus.
Based on flight-proven design and technologies, the Spacebus 3000 platform product line
has built a strong heritage and flight record, with sixteen Spacebus 3000 platform now
operating in orbit and more to be launched. Thanks to its modular concept, the Spacebus
3000 platform can be adapted to the most complex antenna and repeater configurations.
Key Features
- Three axis stabilized geosynchronous platform, compatible with all current launchers
- On ground or in orbit delivery, with a 15-year operating lifetime
- Accommodates payloads of up to 6.5 kW and 500 kg, for a satellite launch mass of up to 4100 kg
- Fully regulated double power bus architecture
- Reliable four wheels attitude control system, with advanced FDIR features
- Four Silicium panel solar array of up to 8.7 kW (15 years End-Of-Life Equinox)
- Bipropellant propulsion system with flight proven ABM and 10N thrusters
The Spacebus 4000 is a medium-class telecommunications satellite (launch mass from 3000
kg for the B3 version to 5900 kg for the C4 version) with a strong successful flight
heritage and proposed with a realistic and safe manufacturing schedule. It can easily
accommodate a large range of payloads in every band (Ku, C, Ka, X, S, L) to satisfy
customer needs.
Key Features
- Telecommunications satellite; launch mass from 3000 to 5900 kg; Solar Array power up to
15,8 kW
- Payload power up to 11,6 kW, typically 80 to 100 active channels with medium RF power
(105/110W in Ku band); standard equipment and system designs available in Ku/C and Ka
frequency bands; other frequency bands (X, S, L) can be proposed
- Realistic and safe manufacturing schedule (typically 27 à 33 months on ground
delivery); attractive price
- Accommodation antenna (from 2.4 m to 3.2 × 2.4 m); Flight proven units (payload and
platform)
- Design, manufacturer and test with an experienced teams for system and equipment
management
- Launch capability demonstrated with all available launchers
- Avionics 4000: 100V bus
Reliability:
Following failures of Spacebus-3000/4000 B-class models have occured:
- Arabsat-3A: 2001 - short circuit in the solar
array drive mechanism - partial loss
Further Aerospatiale / Alcatel / Thales Alenia and Alenia Spazio / Thales Alenia Space
Aerospatiale → Alcatel → Thales Alenia
|
Alenia Spazio → Thales Alenia
|
Source: Alcatel Alenia Space Data sheets