PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/08-01:28:10
G02     216.5          62.9               14.3 +/-    1.15      15.9 +/-    1.15  0.080 / 0.060
G06     55.8           73.9               10.9 +/-    0.44      11.3 +/-    0.44  0.050 / 0.070
G12     318.8          36.4               10.7 +/-    1.36      16.5 +/-    1.36  0.030 / 0.030
G17     55.8           35.2                9.9 +/-    1.66      15.7 +/-    1.66  0.030 / 0.030
G19     40.0           48.9                9.7 +/-    2.05      12.5 +/-    2.05  0.060 / 0.120
G24     264.4          41.3               12.3 +/-    0.51      17.5 +/-    0.51  0.060 / 0.110
G28     123.5          12.4               13.2 +/-    1.74      35.0 +/-    1.74  0.180 / 0.320