On the accuracy of certain approximations for the Chapman function
By: W. Swider, M.E. Gardner
Series: Environmental research papers -- no. 272; Environmental research papers (Hanscom AFB, Mass.) -- no. 272
Publisher: United States Air Force, Office of Aerospace Research, Air Force Cambridge Research Laboratories, Upper Atmosphere Physics Laboratory
Published: 1967
Place of publication: L.G. Hanscom Field, Bedford, Mass
Language: eng
Subjects: Zenith distance; Solar activity; Measurements; Functional analysis
Description: Practical approximations for the Chapman function over the entire range of possible solar zenith angles are considered. The approximations are numerically evaluated for a selected number of parametric values. Comparison with the Chapman function on a percent difference basis is provided. Some practical points regarding geometry are discussed for angles exceeding pi/2. (Author).
Notes: "AFCRL-67-0468."

"August 1967."

"Upper Atmosphere Physics Laboratory Project 8605."

Includes bibliographical references (p. 9).