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High school mathematics: The orbit of Shenzhou VI spacecraft launched by China is an ellipse with the center of the earth (the center of the earth) F2 as the focus.
According to the meaning, the length of the major axis is 439+6371+6371+2384 =15565.

So the origin is located in the center of the long axis, so the coordinates of point A are (7782.5,0) and the coordinates of point B are (-7782.5,0).

The F2 coordinate (7782.5-6371-439,0) is (972.5,0).

The square of the minor axis length is: 7782.5 * 7782.5-972.5 * 972.5 = 59621550.

So the equation is: x 2/7782.5 2+y 2/59621550 =1.

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