Poles, Shapes, Senses of Rotation, and Sidereal Periods of Asteroids
Poles, Shapes, Senses of Rotation, and Sidereal Periods of Asteroids
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DOI：
10.1006/icar.1993.1193
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发表时间：
1993-12
期刊：
影响因子：
3.2
通讯作者：
T. Michałowski
中科院分区：
文献类型：
--
作者：
T. Michałowski
本文介绍了一种确定小行星极、三轴椭球模型形状、自转方向和恒星周期的方法。这些参数是通过求解一组非线性方程组，结合著名的光度天体测量方法，振幅-方位角和星等-方位角同时获得的。30个小行星的结果。对于12个对象，这些参数已被确定为第一次和其他8个，他们已经得到改进。其余10颗小行星主要用作该方法的测试物体。旋转极继续显示出避开黄道面的趋势。振幅太阳相位角和星等相位角的关系，获得了大多数的小行星。
Abstract A method of determination of poles, triaxial ellipsoid model shapes, senses of rotation, and sidereal periods of asteroids is presented. These parameters have been obtained simultaneously by solving a set of nonlinear equations, combining the well-known methods of photometric astrometry, amplitude-aspect, and magnitude-aspect. The results for 30 asteroids are presented. For 12 objects these parameters have been determined for the first time and for 8 others they have been improved. The remaining 10 asteroids were used mainly as test objects for the method. The rotational poles continue to show a tendency to avoid the ecliptic plane. Amplitude-solar phase angle and magnitude-phase angle relationships are obtained for most of the asteroids.