James Webb Space Telescope Fuel Slosh Estimation

Thi-han W Nge; Matthew M Wittal; Carl Hansen; Peter Gauthier

NASA NTRS · 20240011800

James Webb Space Telescope Fuel Slosh Estimation

Thi-han W Nge·Matthew M Wittal·Carl Hansen·Peter Gauthier

Abstract

The mitigation of fuel slosh in microgravity environments is a pressing matter for the control of both manned and unmanned spacecraft. This paper investigates the attitude perturbations caused by fuel slosh aboard the James Webb Space Telescope (JWST). We develop a dynamical model to parse these perturbations from slew telemetry data. This model uses special Euclidean group SE(3) as well as a novel, N-body variational integrator. The enhanced ability to validate fuel slosh models offers the reduction of settling time after slew operations and, accordingly, the maximization of available science time.

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BibTeX RIS

Thi-han W Nge, Matthew M Wittal, Carl Hansen, Peter Gauthier. James Webb Space Telescope Fuel Slosh Estimation. https://ntrs.nasa.gov/citations/20240011800

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