The inputs of the bright source warning simulation tool are the location of the target source, the flux of the target source, the observation time and the field of concerned. The satellite attitude is based on the sun ray projection perpendicular to the detector baffle.
    “Total Flux of Bright Sources/Target Flux” is the ratio of the total flux of objects in the detector field (excluding target) to the flux of target object. There are three fields of view for high, medium and low energy detectors, and every field can be divided into 1, 2 and 3. Only three fields of view satisfy “Total Flux of Bright Sources/Target Flux” less than 1/3 at the same time, in the calculation of "automatic evasion" below, it is considered to be observed, otherwise it is considered to be affected.
    Visitors can enter the percentages of flux they need to view " Bright Sources Information " (for example, enter 0.1, indicating that only interference source flux greater than 10% of the target source will be displayed. It can avoid too many interference sources with little flux affecting the display of the interface). Click "OK" to see the name of the sources near the target source, and high, medium and low-energy flux.
    In “Update Date”, you can move forward or backward for a few days to see if you can avoid interference sources. The number filled in needs to be an integer.
    Fig. 1 is the sky area near the target. The three rectangles in the figure represent the three narrow fields of the selected energy band (high energy, medium energy or low energy). The blue star in the middle represent the target, the red stars and numbers represent the sources nearby, and the blue line represent the direction of the baffle.
    Fig. 2 is a sketch of the whole celestial sphere. The blue dots represent sources with different flux. The yellow circles represent the sun. Three red rectangles represent three narrow fields of the selected energy band (high energy, medium energy or low energy).

HXMT干扰源规避视场模拟
    视场附近亮源情况估计模拟工具的输入量为：目标源位置、目标源的流量、预计的观测时刻以及关心的视场。卫星姿态以太阳光线投影垂直于探测器挡板为准。
    “干扰源总流量/目标源流量”为计算探测器视场内所有的非观测目标产生的流量总和与观测目标的流量的比值，因为高、中、低能探测器各有三个视场，故有视场1、2、3之分。只有三个视场同时满足干扰源总流量/目标源流量<1/3，下面“自动规避”计算中才认为该时刻是可以观测的，否则认为是被影响的。
    访问者可以在“查看干扰源信息”里，输入需要查看的流量百分比（例如，输入0.1，表示只有流量大于目标源流量的10%的干扰源才会被显示，以避免小流量的干扰源太多，影响界面显示），点击“查看干扰源”，来查看目标源附近的源的名称、与高、中、低能流量。
    在“更新日期”中，可以向前或向后移动几天，查看是否能够避免干扰，所填天数需为整数。
    图1为观测目标附近的天区，图中三个矩形表示所选能段（高能、中能或低能）的三个窄视场，中间蓝色星点表示目标源，红色星点和数字表示附近的源，蓝色的线表示挡板所处的方向。
    图2为整个天球的示意图，里面蓝色圆点表示流量不同的源，黄色圆圈表示太阳，三个红色矩形表示三个窄视场。