Accession Number:

AD0733718

Title:

The L-Parameter, A New Approximation,

Descriptive Note:

Corporate Author:

AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s):

Report Date:

1971-09-15

Pagination or Media Count:

13.0

Abstract:

McIlwain defined the magnetic shell parameter L for a point in the earths magnetic field by the equation L cubed BM FI cubed BM, where I is the integral invariant, B the mirror point field, M the earths dipole moment, and F a function calculated for a dipole field. A new approximation to F has been found and is L cubed BM - 1 a sub i X sup 13 asub 2 X sup 23 asub 3 X where X I cubed BM, a sub 1 1.35047, a sub 2 0.465376, and a sub 3 0.0475455. The error in the determination of L is less than 0.01 for all L. The formula is asymptotically correct for X 1 and X 1. Author

Subject Categories:

  • Atmospheric Physics
  • Geomagnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE