Polar Motion Prediction Analysis.
Abstract
The practical application of relating the Earth's crust to inertial space in near real-time requires that the Earth's pole position be predicted. Utilizing software which is used in the DMAHTC TRANSIT precise ephemeris operation, predictions of pole positions were made at 5-day increments from 5 to 30 days for BIH smoothed Circular D data, DMAHTC Polar Monitoring Service (DPMS) data, and BIH astrometry data. By examining 1980 and 1981 data, a confidence level between BIH smoothed Circular D values and Doppler predicted values as a function of prediction time has been established. At a 15-day prediction, the rms errors of the Doppler predictions with respect to the BIH smoothed Circular D values are 0.02 for both the X and Y components of pole position.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1983
- Accession Number
- ADA124198
Entities
People
- William H. Wooden Ii