21. The Seine is a major axis for maritime cargo links in the Port of Rouen. 22. It measures about 100 kilometers in diameter ( 120 km along its major axis ). 23. The semi-major axis is known if the mean motion and the gravitational mass are known. 24. Relations between the Soviet Union and the major Axis powers were generally hostile before 1938. 25. This was possible due to large size of the planet and its small semi-major axis . 26. It is approximately long and wide, positioned with the major axis running northwest to southeast. 27. The longest diameter is called the major axis . 28. The curve is rotated so that its major axis lies along the bearing of the signal. 29. The ellipse is given as 2a across the major axis , and 2b across the minor axis. 30. It has a semi-major axis , orbital period and orbital eccentricity close to that of a plutino.
