| Answer | Crossword Clue |
|---|---|
| ESSA | Polar-orbiting weather satellite |
| pogo | Polar Orbiting Geophysical Observatory |
| pogos | Polar Orbiting Geophysical Observatory |
| SYNCOM | Early orbiting satellite |
| retrogradation | The orbiting or rotation of a planet or planetary satellite in a reverse direction from that normal in the solar system |
| apogee | the point in the orbit of an object (as a satellite) orbiting the earth that is at the greatest distance from the center of the earth |
| apogean | the point in the orbit of an object (as a satellite) orbiting the earth that is at the greatest distance from the center of the earth |
