公开(公告)号：US06561462B1

公开(公告)日：2003-05-13

申请号：US10081468

申请日：2002-02-21

申请人： Hanching G. Wang ,  Umesh Ketkar ,  Albert A. Munoz ,  Sadek Mansour

发明人： Hanching G. Wang ,  Umesh Ketkar ,  Albert A. Munoz ,  Sadek Mansour

IPC分类号： B64G136

CPC分类号： B64G1/363 ,  B64G2001/245

摘要： A spacecraft power/sun acquisition method includes a pitch search phase in which the spacecraft is rotated about a pitch axis, stopped, quaternions reset to remember position, and yaw search phase is entered when a first TOA occurs from a first slit sun sensor, and a keyhole slew is performed when the first TOA does not occur. The method also includes yaw search phase in which a keyhole slew is performed by rotating the spacecraft about a yaw axis, stopping the spacecraft, and entering pitch search phase when the first TOA does not occur, and in which the spacecraft is rotated about a yaw axis, stopped, quaternions reset, and sun hold phase is entered when a second TOA occurs from a second slit sun sensor. Lastly, the method includes a sun hold phase in which the spacecraft is oriented to the sun and placed in spin at power safe attitude.

摘要翻译： 航天器功率/太阳采集方法包括：俯仰搜索阶段，其中航天器围绕俯仰轴线旋转，停止，四元数复位为记忆位置，并且当第一狭缝太阳传感器发生第一TOA时进入偏航搜索阶段，以及 当不发生第一个TOA时执行锁孔旋转。 该方法还包括偏航搜索阶段，其中通过围绕偏转轴旋转航天器，停止航天器并且当第一TOA不发生时进入俯仰搜索阶段执行锁孔，并且其中航天器围绕偏航旋转 轴，停止，四元数复位，并且当从第二狭缝太阳传感器发生第二TOA时进入太阳保持相位。 最后，该方法包括太阳保持阶段，其中航天器被定向到太阳并以功率安全的姿态旋转。