Accession Number:

AD0646640

Title:

AN APPLICATION OF METHODS OF FUNCTION MINIMISATION TO A PROBLEM OF NON-LINEAR CURVE FITTING ARISING IN THE ESTIMATION OF GEOPHYSICAL CONSTANTS FROM SATELLITE OBSERVATIONS.

Descriptive Note:

Technical rept.,

Corporate Author:

ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (ENGLAND)

Personal Author(s):

Report Date:

1966-08-01

Pagination or Media Count:

22.0

Abstract:

Observations of the mean longitude of two nearly synchronous satellites, Syncom 2 and Syncom 3, have been used to estimate the parameters associated with the most important longitude-dependent terms in the expansion of the Earths gravitational field. This has been done by solving a non-linear least squares curve fitting problem using function minimisation techniques and the opportunity has been taken of comparing the efficiencies of a number of these techniques. Estimates of the accuracy of the parameter values obtained have been found from a linearised model. Author

Subject Categories:

  • Geodesy
  • Statistics and Probability
  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE