The invention discloses a spacecraft system for observing a corona and a corona observation method, and the method comprises the steps: building a conical earth shadow model according to a relative position relation between the sun and the earth, and solving an earth umbra region and a penumbra region; a spacecraft system for observing the corona is established, a satellite carrying the corona observer is arranged in an earth intrinsic region, a solar sail is arranged in a penumbra region, and the satellite is connected with the solar sail through a tether; establishing a sun-earth circular restrictive three-body problem dynamic model, solving tethered tension required for keeping the position of the satellite under the three-body model, and determining the specific position of the solar sail in the penumbra area; according to the stress of the solar sail in the circular restrictive three-body problem, the sunlight pressure needed for maintaining stable movement of the solar sail is solved; and establishing a solar sail sunlight pressure model, and solving a solar sail attitude angle and a surface-to-mass ratio required for providing the light pressure. According to the invention, the energy problem that the satellite is maintained in the earth shadow area for a long time is solved, and long-time continuous observation of the coronal is realized.
一种观测日冕的航天器系统及日冕观测方法,根据太阳和地球的相对位置关系,建立圆锥形地影模型,求解地球本影区与半影区区域;组建观测日冕的航天器系统,将携带日冕观测器的卫星布局于地球本影区内,太阳帆置于半影区内,卫星与太阳帆通过系绳连接;建立日地圆型限制性三体问题动力学模型,在三体模型下求解卫星位置保持所需的绳系拉力,确定太阳帆在半影区的具体位置;根据太阳帆在圆型限制性三体问题中的受力,求解维持太阳帆稳定运动所需的太阳光压力;建立太阳帆太阳光压力模型,求解提供该光压力所需的太阳帆姿态角与面质比。本发明解决了卫星长期维持在地影区域的能源问题,实现了对日冕的长时间连续观测。
Spacecraft system for observing corona and corona observation method
一种观测日冕的航天器系统及日冕观测方法
2023-04-25
Patent
Electronic Resource
Chinese
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