Juno Orbits

Juno's orbits around Jupiter are counted in “perijoves” — the point in each trip around the planet when the spacecraft is closest to Jupiter. In contrast, an “apojove” is the point in its orbit when Juno is farthest from Jupiter. When the spacecraft arrived on July 4, 2016 (PDT) and entered the grasp of the giant planet, the mission team began marking perijoves with that first close encounter — “Perijove 0.”
After that, the spacecraft reached “Apojove 0” on July 31 – when, for the first time, it crossed that most distant point in its circuit around Jupiter, about 5 million miles away from the planet (8.1 million kilometers). Then Juno headed back, pulled in by Jupiter’s gravity, and on Aug. 27, 2016, passed about 2,600 miles (4,200 kilometers) above the planet’s swirling cloud tops — marking “Perijove 1.”