| Description: The Playback and Flyby periods together comprise an Encounter, defined as the period of time during the Tour beginning two days before the targeted closest approach of a Jovian moon, and ending two days before the next targeted closest approach of a Jovian moon. While most Jupiter orbits include a targeted flyby, there are some phasing orbits without a targeted flyby; in these cases, an encounter will span more than one orbit. Valid values consist of a three-character identifier (e.g., EO1, G02, etc.) where "E01" indicates the first encounter with Europa and "G02" indicates the second encounter with Ganymede and so on. There is one more additional special value of "XXX" representing data collected during cruise up until the first encounter. |