The European Space Agency's Juice probe performed a gravity assist maneuver near Earth on September 28. The spacecraft passed 8,640 kilometers above the Indian Ocean, which redirected its trajectory by approximately 20 degrees and increased its velocity by 3.5 km/s. Operators required only one minor course correction during the four-week preparation period.
This maneuver aims to adjust the probe's path to Jupiter while conserving fuel. The mission will conduct its final Earth flyby in January 2029, with arrival at the Jovian system scheduled for July 2031. The current flyby served as a critical test for the probe's ten scientific instruments and two onboard monitoring cameras.
During the event, Juice spent several days within the Earth's magnetotail, collecting data on magnetic fields and charged particles. These measurements will be compared with findings from the Smile mission. The probe also captured imagery of Earth and the Moon using the JANUS camera to calibrate optical navigation systems for future operations.
Upon reaching Jupiter in 2031, the probe will execute 35 flybys of Ganymede, Europa, and Callisto. The mission's primary objectives include investigating the subsurface oceans of these icy moons and analyzing the radiation, plasma, and magnetic environments within the Jupiter system before the spacecraft enters orbit around Ganymede.
