Device, program and method for displaying situation

摘要

A situation display device (13) is provided. The device (13) includes: an observation data acquiring module (42) configured to acquire observation data, and information of observed locations of the observation data; a data selecting module (43) configured to select the observation data within a predetermined range from a course of the device (13); and a display unit (34) configured to display a location of the device (13) on a bottom side of a display screen, and display the course linearly such that its traveling direction extends upward from the bottom side. The display unit (34) displays, a predetermined area in an upward tapering shape, and displays the selected observation data at a position that indicates a relation between the course and the observed location, the displayed position of the device (13) in the perpendicular direction being corresponding to an offset of the location of the device (13) from the course.