Composite: List of the well-defind sector boundaries identified from the composite polarity (the computed daily polarity plus the inferred daily polarity replacing the missising data) daily polarity distributions by using a modified definition of the "well-defined" sector boundary: ++++:---- ----:++++ or sometimes ++++---+-- Here "+" refers to a UT day of outward polarity; "-" to a day of inward polarity and ":" to a day of mixed polarity. Spacecraft list of the sector boundary (helispheric current sheet) crossing) identified from the in situ observations of magnetic field and plasma (Omnitape data) based on the characteristics of the field and plasma in the heliospheric current sheet, i.e., spiral field polarity reversal and low velocity and high density. Same definition for daily polarities as above. Xuepu Zhao Nov. 26, 1991
Composite 1982-1988
Spacecraft 1982-1988
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