GENERATION OF THE LUNAR EPHEMERIS ON AN ELECTRONIC COMPUTER

Abstract

This report describes the method of integration that is used in a Lincoln Laboratory computer program (the Planetary Ephemeris Program) to determine as functions of time the position and velocity of the Moon and the partial derivatives of these quantities with respect to initial conditions. The method consists of numerically integrating the differential equations for the differences between the positions, velocities and partial derivatives in the true lunar orbit and in Brown's mean lunar orbit.

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Document Details

Document Type
Technical Report
Publication Date
Aug 24, 1965
Accession Number
AD0629047

Entities

People

  • Michael E. Ash

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accuracy
  • Birds
  • Celestial Mechanics
  • Computers
  • Coordinate Systems
  • Differential Equations
  • Ephemerides
  • Equations
  • Equations Of Motion
  • Floating Point Operations
  • Jet Propulsion
  • Numerical Integration
  • Observation
  • Orbital Elements
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Microelectronics
  • Space
  • Space - Orbital Debris