Engineering:Satellite bus
A satellite bus (or spacecraft bus) is the main body and structural component of a satellite or spacecraft, in which the payload and all scientific instruments are held.
Bus-derived satellites are different to specially produced satellites. Bus-derived satellites are usually customized to customer requirements, for example with specialized sensors or transponders, in order to achieve a specific mission.[1][2][3][4]
They are commonly used for geosynchronous satellites, particularly communications satellites, but are also used in spacecraft which occupy lower orbits, occasionally including low Earth orbit missions.
Examples
![](/wiki/images/thumb/c/c0/SpacecraftBus-model.jpg/250px-SpacecraftBus-model.jpg)
Some satellite bus examples include:
- Boeing DS&S 702
- Lockheed Martin Space Systems A2100
- Alphabus
- INVAP ARSAT-3K
- Airbus D&S Eurostar
- ISRO's I-1K, I-2K, I-3K, I-4K, I-6K, and Indian Mini Satellite bus
- NASA Ames MCSB
- SSL 1300
- Orbital ATK GEOStar
- Mitsubishi Electric DS2000
- Spacecraft bus of the James Webb Space Telescope
- SPUTNIX TabletSat
- SPUTNIX OrbiCraft-Pro
Components
A bus typically consists of the following subsystems:[6]
- Command and data handling (C&DH) system
- Communications system and antennas
- Electrical power system (EPS)
- Propulsion
- Thermal control
- Attitude control system (ACS)
- Guidance, navigation, and control (GNC) system
- Structures and trusses
- Life support (for crewed missions).
See also
References
- ↑ "TU Delft: Spacecraft bus subsystems". Lr.tudelft.nl. http://www.lr.tudelft.nl/en/organisation/departments/space-engineering/space-systems-engineering/expertise-areas/spacecraft-engineering/design-and-analysis/configuration-design/subsystems/subsystems/.
- ↑ "Spacecraft Systems". Braeunig.us. http://www.braeunig.us/space/systems.htm.
- ↑ "The James Webb Space Telescope". Jwst.nasa.gov. http://jwst.nasa.gov/bus.html.
- ↑ "Antrix Corporation Ltd - Satellites > Spacecraft Systems & Sub Systems". Antrix.gov.in. 2009-09-24. http://www.antrix.gov.in/sss_systems.html.
- ↑ "Status of the JWST Sunshield and Spacecraft". https://static1.squarespace.com/static/54b171c5e4b047061239404b/t/57b30618b8a79bb69fff7b4c/1471350297818/SPIE990405_Status+of+the+JWST+Sunshield+and+Spacecraft.pdf.
- ↑ Satellite Bus Subsystems , NEC, accessed 25 August 2012.
External links
- Satellite Glossary
- JWST Observatory: The Spacecraft Bus
- Spitzer's Spacecraft Bus
- Gunter's Space Page: Spacecraft buses
es:Satélite artificial#Modelo de satélite
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