Sentence examples for zenith distance from inspiring English sources

The value of the difference between the result obtained at the zenith distance of 84° and that given in the Pulkovo atmospheric refraction table was about 15".

At larger zenith angles (χ=100°) this deviation reaches a factor of five in the ionization rate maxima and increases with solar zenith distance χ.

Actual observations have thus established the fact that for corresponding zenith distance, the temperature produced by the radiant heat when the earth has nearly reached perihelion, is 58.7−53.8=40°.9 higher than at midsummer.

Z represents the zenith distance towards the satellite.

TD is a function of zenith distance or satellite elevation (e.g., Davis et al. 1985) and is factorized into dry (hydrostatic) and wet components.

We used a modified single layer mapping function as presented in Grejner-Brzezinska et al. (2004): (3)where z′ is the zenith distance at the ionospheric pierce point (IPP), R is the radius of the Earth (6,371 km), H is the ionospheric single layer height (350 km), and α is the correction factor (0.9782).

The values of atmospheric refraction at the true zenith distances of 44.8° to 87.5° were obtained from the practical observations based on the differential method, and the feasibility of the method of differential measurement of atmospheric refraction was preliminarily justified.

A series of observations of the starry sky at different heights are carried out and by starting from the zenith with a telescope with larger field of view, the derivatives of various orders of atmospheric refraction function at different zenith distances are calculated and finally the actually observed values of atmospheric refraction can be found via numerical integration.

It was necessary for him to determine the zenith distances with respect to the plumb line for a set of stars at the precise time that each passed due south.

In this paper, we show that the ground signal deposit of an EAS can be described in terms of only very few parameters: the primary energy E, the zenith angle θ, the distance of the shower maximum Xmax to the ground, and a muon flux normalization Nμ.

The photon's trajectory can be exactly described by scattering distance, scattering zenith angle, and scattering azimuth angle.