Accession Number:

ADA043016

Title:

Effects of Force Model Errors on SEASAT Satellite Orbits,

Descriptive Note:

Corporate Author:

NAVAL SURFACE WEAPONS CENTER DAHLGREN LAB VA

Personal Author(s):

Report Date:

1977-05-01

Pagination or Media Count:

33.0

Abstract:

Simulated SEASAT orbit data are generated under the influence of several perturbing forces. Least squares fits are made to the simulated data and the results are examined in relation to the feasibility of long arc 24 hours ephemeris determination of SEASAT orbits. Perturbing forces considered are 1 truncated earths gravitation fields 2 atmospheric drag 3 solar radiation 4 the earths visible albedo. The orbit generation integration interval was also examined for truncation or round-off errors. Results indicate that the error build-up renders long arc SEASAT ephemeris determination infeasible at the orbit error level of one meter. Author

Subject Categories:

  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE