Accession Number:

AD0631824

Title:

ERRORS IN LONG-TERM ORBITAL PREDICTION,

Descriptive Note:

Corporate Author:

JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s):

Report Date:

1964-02-01

Pagination or Media Count:

20.0

Abstract:

The results of orbital prediction over periods from two to six months are presented. The orbits used in the predictions were based upon Doppler data obtained within not more than twenty-four hours. After removing the drag contribution, the remaining prediction error is found to grow linearly with time, contrary to the theory of Moe 1963. An alternate expression for the growth of error is given. It is shown that the contribution from measurement error is an order of magnitude below the contribution from geodetic errors. Author

Subject Categories:

  • Spacecraft Trajectories and Reentry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE