The footprint of a

communications satellite A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. C ...

is the ground area that its

transponder In telecommunications, a transponder is a device that, upon receiving a signal, emits a different signal in response. The term is a blend word, blend of ''transmitter'' and ''responder''. In air navigation or radio frequency identification, a T ...

s offer

coverage Coverage may refer to: Filmmaking * Coverage (lens), the size of the image a lens can produce * Camera coverage, the amount of footage shot and different camera setups used in filming a scene * Script coverage, a short summary of a script, wri ...

, and determines the

satellite dish A satellite dish is a dish-shaped type of parabolic antenna designed to receive or transmit information by radio waves to or from a communication satellite A communications satellite is an artificial satellite that relays and amplifies radi ...

diameter In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid for ...

required to receive each transponder's signal. There is usually a different map for each transponder (or group of transponders), as each may be aimed to cover different areas. Footprint maps usually show either the estimated minimum

required or the signal strength in each area measured in dBW.

External links

Links to fleet information and footprints
from SES.

from

Intelsat Intelsat S.A. (formerly INTEL-SAT, INTELSAT, Intelsat) is a multinational satellite services provider with corporate headquarters in Luxembourg and administrative headquarters in Tysons Corner, Virginia, United States. Originally formed as In ...

for their fleet of satellites.
Links to interactive maps
for

SES World Skies SES World Skies was a short lived company formed as a result of the merger between the two SES subsidiaries, ''SES Americom'' and ''SES New Skies''. The company was merged into its parent company, SES S.A. in 2011. History SES Americom ...

's fleet of satellites.
Link to maps
for

Russian Satellite Communications Company Federal State Unitary Enterprise Satellite Communications (russian: ФГУП «Космическая связь») or Russian Satellite Communications Company is the main state operator of communications satellites. It is the Russian operator ...

satellites
Link to satellite footprints
from SatBeams for Geostationary satellites
Satellite footprints
as images and on Google Earth Satellites Satellite broadcasting