(EN) The invention relates to a method and a system for determining the capability of a sensor contained in a satellite to access a target region (8). The position (5) of the satellite is ascertained, the viewing radius of the sensor in the direction of a target reference point in a target region is then determined, the extension of the target region in the direction of a satellite position point is ascertained, and the sensor is determined to be capable of accessing the target region if the distance between the satellite position point and the target reference point in the target region is less than or equal to the sum of the viewing radius of the sensor and the extension of the target region in the direction of the target reference point.
(ZH) 本发明涉及一种用于确定包含在卫星中的传感器访问目标区域(8)的可能性的方法和系统。在该方法和系统中，识别卫星的位置(5)，然后确定传感器在目标区域中的目标参考点方向上的视野半径，识别目标区域在卫星位置点方向上的延伸量，并在卫星位置点与目标区域内的目标参考点之间的距离小于等于传感器的视野半径与目标区域在目标参考点方向上的延伸量之和时，确定存在访问可能性。
