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Glite Dictionary
TDT

TDT

1 9.9
A steady time based on Earth's motion used by astronomers and to guide spacecraft
  • noun
  • Archaic
: TDT
  • So it's the integral of P of TDT over that interval.

Examples

  • The S equals CP over TDT minus V alpha DP.

  • The financial model assumes a zero percent increase in TDT for three years, a one percent increase in the fourth year, and two percent increases per year after that.

    Blog text (24)

  • Until we have a better worked-out version of TDT and we can prove that formally, it should just be obvious that you do not think about distant blackmailers in sufficient detail that they have a motive to actually blackmail you.

    Blog text (10)

  • The scientist explained how TDT is calculated based on Earth's movement around the Sun.

  • For accurate astronomical observations, TDT is essential for correcting discrepancies in time measurement.

  • Astronomers rely on TDT to ensure precise timing in their research and observations.

Synonyms

terrestrial time
vsTDT
  • Specialized
1 9.0

A clock system that uses Earth's movement around the Sun and corrects for Earth's irregular motion

is the same standard but called by a technical abbreviation
TT
vsTDT
  • Specialized
1 9.9

A precise time used by astronomers, based on Earth's orbit, to calculate planet positions

is the general uniform standard rather than a calculation reference
ephemeris time
vsTDT
  • Archaic
1 9.9

Time measured by Earth's orbit, used for exact calculations of planet positions

focuses on correcting mean solar time variations rather than only uniform scale
terrestrial dynamical time
vsTDT
  • Specialized
9.9

A time system based on Earth's orbit used to calculate planet positions

is the same concept expressed with a different technical label

Surface Forms

TDT singular
TDTs plural

Morphology

TDT = T + D + T

TDT is an initialism/acronym formed from letters; the letters do not transparently convey the full technical meaning to learners.

Etymology

TDT comes from terrestrial 'of the Earth' and dynamical 'about motion', and it names a time scale tied to Earth's movement. Astronomers use TDT as a steady, corrected clock so measurements match around the world.