PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/05-22:58:00
G02     206.2          45.1               21.8 +/-    2.23      29.3 +/-    2.23  0.080 / 0.140
G06     132.2          77.6               18.2 +/-    0.86      18.6 +/-    0.86  0.080 / 0.160
G12     312.4          22.8               13.7 +/-    2.76      28.2 +/-    2.76  0.030 / 0.040
G17     41.3           45.7               13.6 +/-    0.32      18.1 +/-    0.32  0.040 / 0.050
G19     16.3           60.2               16.5 +/-    0.39      18.7 +/-    0.39  0.070 / 0.160
G24     286.7          41.5               17.2 +/-    0.92      24.4 +/-    0.92  0.070 / 0.220
G28     111.1          24.6               18.0 +/-    0.71      35.4 +/-    0.71  0.050 / 0.090