Accession Number:

AD0748460

Title:

On the Determination of the Diurnal Polar Motion using Stellar Observations,

Descriptive Note:

Corporate Author:

TEXAS UNIV AUSTIN APPLIED MECHANICS RESEARCH LAB

Personal Author(s):

Report Date:

1972-08-01

Pagination or Media Count:

69.0

Abstract:

The position of the pole of rotation of the Earth has been determined by means of stellar observations for over 70 years. These data clearly show the Chandlerian period of approximately 430 days, while spectral analyses indicate the effects of shorter period components, e.g., the annual component. Although it has been theorized that a diurnal component exists, it has not been positively detected. A computer program was written to simulate optical stellar observations and several methods of data reduction were tested and their usefulness in studying a diurnal polar motion was investigated. Author

Subject Categories:

  • Geodesy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE