Two examples of the SWCC map. (a) Averaged charge states of iron and oxygen ions measured by ACE/SWICS. The time resolution is 12 minutes. (b) The SWCC map of averaged charge states of iron and oxygen ions in solar wind. w = 5 hours. Green dashed lines mark the left and right boundaries of the red parallelogram. Grey triangles are defined by the boundaries of the parallelogram and the baseline. (c) Measured z component of the solar wind magnetic field (B_z in Geocentric Solar Ecliptic coordinate system) from ACE and the symmetric disturbances for horizontal component of the geomagnetic field (SYM-H) provided by the WDC for Geomagnetism, Kyoto. The time resolution is 1 minute. w = 3.5 hours. (d) The SWCC map of B_z and SYM-H. Violet dashed lines show the left and right boundaries of the two red parallelogram that marked as structures i and ii. Grey triangles are defined by the boundaries of the parallelogram and the baseline. (e) The SWMI map of B_z and SYM-H. We mark four sub-structures of structure i and ii as structures i − 1, i − 2, ii − 1, and ii − 2.