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From Wikipedia, the free encyclopedia

Communications satellite bus and payload module
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

(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]
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

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

See also

References

  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

This page was last edited on 2 October 2020, at 07:32
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