Callsign

A callsign is a pseudonym that radio operators such as CAPCOM will use to refer to a specific person or group of people.

Important Callsigns

• The callsign for Mission Control is "M.C." (pronounced "emm-cee").
• The callsign for the Habitat is "Habitat", though "Hab" is also acceptable.
• The callsign for Earth Station 1 is "Earth" or "ES1" (pronounced "ee-ess-one").

Spacesim Culture

In recent times, callsigns have come to be used as friendly nicknames, and have entered the general Spacesim culture.

Toilets

In 2009-10 the chemical toilets in the bathroom were labeled with the astronauts' callsigns instead of their names, as had been done in previous years.

See Also

CAPCOM (procedures)