Satellite bus

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Communications satellite bus and payload module

A satellite bus or spacecraft bus is a general model on which multiple-production satellite spacecraft are often based. The bus is the infrastructure of the spacecraft, usually providing locations for the payload (typically space experiments or instruments).

Bus-derived satellites are opposed to one-off, or 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[edit]

(only commercially available models)

Diagram of the James Webb Space Telescope's spacecraft bus. The solar panel is in green and the light purple flats are radiator shades.[5]

Some satellite bus examples include:

Components[edit]

A bus typically consists of the following subsystems:[6]

See also[edit]

References[edit]

  1. ^ "TU Delft: Spacecraft bus subsystems". Lr.tudelft.nl. Retrieved 2014-04-23. 
  2. ^ "Spacecraft Systems". Braeunig.us. Retrieved 2014-04-23. 
  3. ^ "The James Webb Space Telescope". Jwst.nasa.gov. Retrieved 2014-04-23. 
  4. ^ "Antrix Corporation Ltd - Satellites > Spacecraft Systems & Sub Systems". Antrix.gov.in. 2009-09-24. Retrieved 2014-04-23. 
  5. ^ "Status of the JWST Sunshield and Spacecraft" (PDF). 
  6. ^ Satellite Bus Subsystems Archived 2012-09-05 at the Wayback Machine., NEC, accessed 25 August 2012.

External links[edit]