On January 15th, 2006, 0556 UTC, the Stardust spacecraft released a 42-kg Sample Return Canister (SRC) along a trajectory intended to impact a target on the Air Force Utah Test and Training Range (UTTR), near Dugway, Utah. Assurances of a successful SRC delivery to UTTR depended on identifying (and mitigating, if possible) a myriad of error sources. These sources included atmospheric effects, maneuver execution, Orbit Determination (OD) uncertainties and (Delta)V induced by the firing of the unbalanced Reaction Control System (RCS) thrusters needed for deadband attitude control. Every mm/s in prediction error at the TCM-19 epoch would amount to missing the target by approximately one kilometer. This paper will describe the work performed in analyzing and predicting the levels of (Delta)V caused by the attitude deadbanding, as well as prediction performance.
Modeling of Deadbanding DV for the Stardust Earth Return: Calibration, Analysis, Prediction and Performance
AIAA/AAS Astrodynamics Specialist Conference and Exhibit ; 2006 ; Keystone, CO, United States
2006-08-21
Preprint
Keine Angabe
Englisch
1-AU calibration activities for Stardust Earth Return
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