NASA NTRS · 19860000240
Analyzing Shuttle Orbiter Trajectories
Abstract
LRBET4 program best-estimated-of-trajectory (BET) calculation for post-flight trajectory analysis of Shuttle orbiter. Produces estimated measurements for comparing predicted and actual trajectory of Earth-orbiting spacecraft. Kalman filter and smoothing filter applied to input data to estimate state vector, reduce noise, and produce BET. LRBET4 written in FORTRAN IV for batch execution.
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Lear, W. M.. 1986-05-01. Analyzing Shuttle Orbiter Trajectories. https://ntrs.nasa.gov/citations/19860000240
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