| 1. | The original plans were for an above-ground track past Ismaning.
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| 2. | It was the longest X-15 flight in both time and distance from the ground track.
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| 3. | The missile was launched when a target satellite's ground track rises above the launch site.
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| 4. | The ground track of a satellite in a tundra orbit is a closed figure eight.
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| 5. | Its ground tracks fall midway between those of Jason-2, which are about apart at the equator.
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| 6. | The three separate orbits are spaced equally around the Earth, but share a common ground track.
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| 7. | Jason-1's ground tracks fall midway between those of Jason-2, which are about apart at the equator.
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| 8. | The pilot must adjust heading to compensate for the wind, in order to follow the ground track.
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| 9. | Plagued by delays and corruption allegations, the 20 miles of above-ground track took a decade to build.
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| 10. | In this manner, the satellite could observe long term changes at the points along the ground track.
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