Final answer:
Without the graph, we cannot calculate the specific average velocity of the asteroid. Generally, average velocity is found by dividing the displacement by the total time taken, which is information typically provided by a position-versus-time graph.
Step-by-step explanation:
The student's question pertains to the calculation of average velocity of an asteroid based on a graph, which implies a working knowledge of kinematics, a subtopic of physics. As there is no graph provided with the question, a direct calculation cannot be performed. However, in a general sense, to determine the average velocity, one would divide the total displacement (change in position) by the total time taken for the asteroid to travel that distance as shown in the graph. For instance, if an asteroid moves from a position of 0 km to 10 km in a span of 5 seconds, the average velocity would be calculated as (10 km - 0 km) / 5 s = 2 km/s.