Search Results for "geocentric"

GeographicLib is a small C++ library for: geodesic and rhumb line calculations; conversions between geographic, UTM, UPS, MGRS, geocentric, and local cartesian coordinates; gravity (e.g., EGM2008) and geomagnetic field (e.g., WMM2020) calculations.

Geodesy is a Julia package for working with points in various world and local coordinate systems. The primary feature of Geodesy is to define and perform coordinate transformations in a convenient and safe framework, leveraging the CoordinateTransformations package. Transformations are accurate and efficient and implemented in native Julia code (with many functions being ported from Charles Karney's GeographicLib C++ library), and some common geodetic datums are provided for convenience.

geoStarsLib has functions for dealing with many geodesy-based problems found in positioning, pointing, and surveying situations. It is useful to determine absolute position on the earth, pointing vectors, coordinate transformations, and other functions.

Orbit Wizard is an educational open source tool developed in Matlab GUIDE for the design and visualization of geocentric orbits. The current version is in an early phase of development. Please employ the Orbit Wizard forum to report bugs and suggestions. The developers of Orbit Wizard are Álvaro Romero Calvo and Fernando Soler Lanagrán. Orbit Wizard is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License v2.0 External references: M_Map: https://www.eoas.ubc.ca/~rich/map.html Wikimedia: https://upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Land_ocean_ice_2048.jpg/1024px-Land_ocean_ice_2048.jpg

This is for Mathematica. 1) list of geocentric <> geodetic <> XYZ related equations* 2) quick plots using them (3d poly globe) 3) wikipedia article summarizing the above 4) one equation is by author of this paper. shows that using (new) geometry observation, Heiskanen and Moritz or Ferrari equations were not necessary as the problem is not inheirently recursive as they suggested.

Software for meteor orbit determination using apparent topocentric vs geocentric radiant and velocity. With some additional features like meteor visible track data processing and search of related asteroids and comets

An application for geodetic-geocentric coordinate conversion problem

This software computes synthesis of spherical harmonics models on sparse coordinates or grids (provided in a geodetic or geocentric reference system). It exploits basic parallelism using openmp directives. A solution with MPI has not be taken into account since it cannot be so easily manageble by final users.

Java library to calculate heliocentric and geocentric planetary positions. Two types of calculations are supported: a 'fast' version which has an accuracy of about 1 arc second and a 'full' version that implements the full VSOP87 theory.

This library aims at maximum performance for the computation of the geocentric positions of planets, Sun and Moon. It is written completely in assembly language and works with binary files for the perturbations.