Determination of Earth Satellite Orbits - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: Not HP Calculators (/forum-7.html) +--- Forum: Not remotely HP Calculators (/forum-9.html) +--- Thread: Determination of Earth Satellite Orbits (/thread-15795.html) |
Determination of Earth Satellite Orbits - SlideRule - 10-26-2020 11:20 AM " ABSTRACT The formulas used in a computer program to fit earth satellite orbits to data are documented. The areas covered are (1) iterative method of determining maximum likelihood parameter estimates; (2) units and coordinate systems; (3) motion of the earth about its center of mass; (4) equations for earth satellite motion and partial derivatives of this motion with respect to parameters; (5) theoretical values and partial derivatives of theoretical values of ground based (radar or radio transponder, look angles, long baseline interferometer) and satellite based (radar, look angles) observables; and (6) numerical techniques such as numerical integration, polynomial interpolation and matrix inversion. Observations of the sun, moon, planets and stars are also discussed. " TN-1972-5, M.E. Ash (M.I.T.), Lincoln Laboratory, 19 April 1972 emphasis mine BEST! SlideRule |