PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-20:57:40
G02     203.6          36.1               14.1 +/-    0.88      21.9 +/-    0.88  0.200 / 0.190
G06     154.5          71.1               13.4 +/-    0.51      14.1 +/-    0.51  0.100 / 0.160
G12     308.6          17.3               11.5 +/-    2.17      27.2 +/-    2.17  0.070 / 0.080
G17     34.8           50.3               11.3 +/-    0.84      14.2 +/-    0.84  0.080 / 0.100
G19     359.6          65.3               11.0 +/-    0.49      12.0 +/-    0.49  0.030 / 0.020
G24     296.1          39.0               10.8 +/-    3.02      16.0 +/-    3.02  0.030 / 0.030
G28     103.8          30.2               12.2 +/-    1.50      21.3 +/-    1.50  0.030 / 0.030