Earth Satellite Program - 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: Earth Satellite Program (/thread-15800.html) |
Earth Satellite Program - SlideRule - 10-27-2020 11:03 AM " ABSTRACT The Earth Satellite Program (ESP) version 2.0 is a user-friendly, highly graphical, Macintosh-based program that was developed for the Air Force MILSTAR program to support satellite constellation and ground site terminal design studies. The computer program generates satellite ground tracks; computes elevation angles, ranges, and range rates; determines outage zones for a constellation of satellites; and generates spot beam projections. Any elliptical Earth-orbit may be accommodated. A fourth-order Runge-Kutta integrator is used to propagate satellite orbits. Perturbations due to the Earth's oblateness (J2 effects), atmospheric drag, and solar radiation pressure are included. This paper contains a user's guide to the program, presents the underlying mathematical models, and includes several sample outputs and the software on diskette. " the Earth Satellite Program (ESP), version2.0, Electronic Systems Command (AFMC), Hanscom AFB, FEB 1994, 102 pages BEST! SlideRule ps: emphasis mine |