SINGLE PASS FIT PROGRAM (SPFP)
Abstract
The Single Pass Fit Program (SPFP) is designed for use on the CDC 6400 or 6600 machine as the principal computational tool for preliminary orbit determination and processing of single arcs of raw tracking data. By an iterative differential correction procedure, it solves for a set of trajectory parameters, namely, initial position and velocity (and drag coefficient if desired) of the vehicle, which minimize the differences between measured and computed observation measurements. A comprehensive description of the mathematical model implemented in the SPFP is presented with emphasis placed on key characteristics, such as reference systems and equations, data processing and self-initializing techniques, residual editing, and differential correction. In addition, a basic usage guide is given complete instructions for input data preparation and program operation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1967
- Accession Number
- AD0826119
Entities
People
- Dennis C. Walker
- Guenther Buechler
Organizations
- The Aerospace Corporation