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 less customized than specially-produced satellites, but have specific equipment added to meet
They are commonly used for
communications satellites, but are also used in spacecraft which occupy lower orbits, occasionally including low Earth orbit
missions.
Examples
Some satellite bus examples include:
- Boeing DS&S 702
- A2100
- Alphabus
- INVAP ARSAT-3K
- Airbus D&S Eurostar
- NASA Ames MCSB
- SSL 1300
- Orbital ATK GEOStar
- Mitsubishi Electric DS2000
- Spacecraft bus of the James Webb Space Telescope
- SPUTNIX TabletSat
- SPUTNIXOrbiCraft-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. Archived from the original on 2016-03-03. Retrieved 2014-04-23.
- ^ "Spacecraft Systems". Braeunig.us. Retrieved 2014-04-23.
- ^ "The James Webb Space Telescope". Jwst.nasa.gov. Retrieved 2014-04-23.
- ^ "Antrix Corporation Ltd - Satellites > Spacecraft Systems & Sub Systems". Antrix.gov.in. 2009-09-24. Archived from the original on 2014-02-20. Retrieved 2014-04-23.
- ^ "Status of the JWST Sunshield and Spacecraft" (PDF).
- ^ Satellite Bus Subsystems Archived 2012-09-05 at the Wayback Machine, NEC, accessed 25 August 2012.
External links
- Satellite Glossary
- JWST Observatory: The Spacecraft Bus
- Spitzer's Spacecraft Bus
- Gunter's Space Page: Spacecraft buses
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