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.

Communications satellite bus and payload module

Bus-derived satellites are less customized than specially-produced satellites, but have specific equipment added to meet 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

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". Archived from the original on 2016-03-03. Retrieved 2014-04-23.
  2. ^ "Spacecraft Systems". Retrieved 2014-04-23.
  3. ^ "The James Webb Space Telescope". Retrieved 2014-04-23.
  4. ^ "Antrix Corporation Ltd - Satellites > Spacecraft Systems & Sub Systems". 2009-09-24. Archived from the original on 2014-02-20. 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

  • Satellite Glossary
  • JWST Observatory: The Spacecraft Bus
  • Spitzer's Spacecraft Bus
  • Gunter's Space Page: Spacecraft buses