lunartime.org

Terrestrial Time (TT)

Terrestrial Time is the theoretical time scale of a clock at rest on Earth's geoid. It is the ideal that International Atomic Time approximates, and it differs from Geocentric Coordinate Time by a fixed rate factor.

Derived from
Geocentric Coordinate TimeTCG
Realized by
International Atomic TimeTAI

Other terms worth reading next.

All thirty entries are in the glossary of lunar timekeeping.

Where it appears

Articles on this site that use the term.

Sources

  1. Policy on Celestial Time Standardization — White House Office of Science and Technology Policy, . Official document. Verified .
  2. A Relativistic Framework to Estimate Clock Rates on the Moon — Neil Ashby and Bijunath R. Patla, NIST — The Astronomical Journal 168:112, . Peer-reviewed. Verified .

Last verified