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In-orbit repositioning of multiple solar sail spacecraft

机译:多个太阳帆航天器在轨重定位

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Future heliospheric missions will require the Sun to be observed from suitable vantage points and will use multiple spacecraft for guaranteeing a three-dimensional imaging of the entire solar surface. The aim of this paper is to study the repositioning problem of two solar sails whose location must be suitably separated (one ahead of the Earth and one behind it) and placed at the chosen observation points in a given mission time. The use of solar sails for such a maneuver is especially attractive because the sailcraft thrust is obtained from solar photons without using any propellant. In particular, solar sails offer the feasibility of performing rest-to-rest maneuvers, thus giving the opportunity to maintain a fixed value of the azimuthal observation angle to perform long mapping campaigns. The minimum time reorientation maneuver is thoroughly investigated to correlate the maximum value of the separation angle between sailcraft in a given mission time with the technological level required to fulfil the reorientation maneuver.
机译:未来的日空飞行任务将需要从合适的有利位置观察太阳,并将使用多艘航天器来保证整个太阳表面的三维成像。本文的目的是研究两个太阳帆的重定位问题,它们的位置必须适当地分开(一个在地球前面,另一个在地球后面),并在给定的任务时间内放置在选定的观测点。将太阳帆用于这种机动是特别有吸引力的,因为帆的推力是从太阳光子获得的,而没有使用任何推进剂。特别地,太阳帆提供了进行静止到静止操纵的可行性,从而为保持长距离的观测活动提供了保持方位角观测角固定值的机会。彻底研究了最小时间重新定向操作,以将给定任务时间内帆船之间的分离角的最大值与实现重新定向所需的技术水平相关联。

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