Star Look Angle Computation.

Abstract

The STAR 1program was prepared to replace a current SAMTEC Star Look Angle program run on the IBM 7094 computer by a program of higher accuracy which runs on the IBM 360/65 computer. The program is organized in module form for easy use in other programs. The design accuracy (neglecting refraction corrections) is 0.01 arcseconds for both azimuth and elevation angles. This program, with the proper BLOCK DATA, will produce look angles at a given site for a given time block (in hours) for as many days as desired, up to January 1 of the next year. The coding was prepared in FORTRAN IV. Running speed is about 1.4 CPU seconds per star-station-day with polar motion corrections and a 1/2 hour integration step size. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 15, 1977
Accession Number
ADA051658

Entities

People

  • George Sinclair

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Cartesian Coordinates
  • Catalogs
  • Computations
  • Computer Programming
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Data Acquisition
  • Elevation
  • Equations
  • Latitude
  • Longitude
  • Mathematics
  • Numbers
  • Radar
  • Star Position

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Astronomy and Astrophysics.
  • Computer Science.