On the Determination of the Diurnal Polar Motion using Stellar Observations,
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1972
- Accession Number
- AD0748460
Entities
People
- John Marshall Blake
Organizations
- University of Texas at Austin