Tempo (astronomy)とは 意味・読み方・使い方

Tempo is a software program used to analyze radio observations of pulsars. Once enough observations are available, Tempo can deduce the pulsar rotation rate and phase, astrometric position and rates of change, and parameters of binary systems, by fitting models to pulse times of arrival measured at one or more terrestrial observatories. This is a non-trivial procedure because much larger effects must be removed before the detailed fit can be performed. These include:

• Dispersion of the pulses in the Interstellar medium, the solar system, and the ionosphere
• Observatory motion (including Earth rotation, precession, nutation, polar motion and orbital motion)
• Tropospheric propagation delay
• Gravitational time dilation due to binary companions and Solar system bodies.