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首页> 美国政府科技报告 >Autonomous Propulsion System Requirements for Placement of an STS (Space Transportation System) External Tank in Low Earth Orbit
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Autonomous Propulsion System Requirements for Placement of an STS (Space Transportation System) External Tank in Low Earth Orbit

机译：低地球轨道sTs（航天运输系统）外坦克放置的自主推进系统要求

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The paper discusses the findings of an extensive series of computer simulations carried out at the National Institute of Standards and Technology to investigate the requirements for powered flight of the external tank through the thermosphere following separation from the Shuttle orbiter at main engine cutoff. The object of the investigation was to determine the minimum thrust and fuel requirements for an autonomous exterior propulsion package attached to the external tank in order to avoid re-entry on the critical first orbit, and to place the tank in a short term stable orbit from which customary orbit maintenance procedures may be carried out. Descriptions are given for the differential equations of motion, and the atmospheric drag and propulsion models used in the equations.

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