sentences:  The chosen orbit was also sun-synchronous, allowing the daylit side of Mars to always be captured during the mid-afternoon of each Martian Sol.While some instruments could provide a real-time data link when Earth was in view of the spacecraft, data would also be recorded to the digital tape recorders and played back to Earth each day.Over 75 gigabytes of scientific data was expected to be yielded during the primary mission, much more than any previous mission to Mars.