Plot of the variation in normal tidal stresses, expected for the model that includes eccentricity tides plus a 1:1 physical libration of 07 amplitude (Paper 2), at the adjusted location of Jet #73. Positive stresses are extensional, negative, compressional. The black dots mark those observations where either the eruption state was ambiguous or the jet, even if on, would not have been clearly visible, for example, it was beyond the terminator, obscured by other jets, over the limb, etc.