The Vostok-1 spacecraft carried the rst human into outer space in 1961. The height of the
orbit was 181 km in its perigee and 327 km in its apogee. Determine the orbital period of
the spacecraft. You may assume that the period of a low-orbit satellite is 84 minutes, and
the average radius of the Earth is 6371 km.

Question

The Vostok-1 spacecraft carried the rst human into outer space in 1961. The height of the
orbit was 181 km in its perigee and 327 km in its apogee. Determine the orbital period of
the spacecraft. You may assume that the period of a low-orbit satellite is 84 minutes, and
the average radius of the Earth is 6371 km.

john_es · Answer

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