Accession Number:

AD0654562

Title:

DETERMINATION OF THE ASPHERICITY PARAMETERS OF THE EARTH'S ATMOSPHERE FROM CHANGES IN THE ORBITAL ELEMENTS OF ARTIFICIAL SATELLITES,

Descriptive Note:

Corporate Author:

JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s):

Report Date:

1967-04-28

Pagination or Media Count:

51.0

Abstract:

An equation is set up for the air density distribution in the earths atmosphere on the basis of change in the orbital period of satellites. The parameters characterizing the latitude, diurnal, and solar activity effects in the air density distribution were obtained from data on orbital periods and elements of 1958 Alpha, 1960 Xi 1, 1961 NU 1, and 1959 Eta. Determination of the latitude effect from observed changes in orbital period is uncertain, and must be allowed for theoretically. The amplitude of the diurnal effect increases with geocentric distance, whereas solar activity seems to be weakly dependent on the altitude. Author

Subject Categories:

  • Atmospheric Physics
  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE