Before revision: Juno encounters with Io with altitudes less than OrbitDate AltitudeNotesPJ25February 17, 2020Closest encounter to Io during primary missionPJ43July 5, 2022PJ47December 14, 2022PJ49March 1, 2023PJ51May 16, 2023PJ53July 31, 2023PJ55October 15, 2023PJ57December 30, 2023PJ58February 3, 2024PJ60April 9, 2024PJ67November 25, 2024PJ72May 8, 2025 During several orbits, Juno has observed Io from a distance using JunoCAM, a wide-angle, visible-light camera, to look for volcanic plumes and JIRAM, a near-infrared spectrometer and imager, to monitor thermal emission from Io's volcanoes.
After revision: Juno encounters with Io with altitudes less than OrbitDate AltitudeNotesPJ25February 17, 2020Closest encounter to Io during primary missionPJ43July 5, 2022PJ47December 14, 2022Safe mode after encounterPJ49March 1, 2023PJ51May 16, 2023PJ53July 31, 2023PJ55October 15, 2023PJ57December 30, 2023PJ58February 3, 2024PJ60April 9, 2024PJ67November 25, 2024PJ72May 8, 2025 During several orbits, Juno has observed Io from a distance using JunoCAM, a wide-angle, visible-light camera, to look for volcanic plumes and JIRAM, a near-infrared spectrometer and imager, to monitor thermal emission from Io's volcanoes.