PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-20:43:10
G01     37.9           11.1                9.3 +/-   15.81      25.4 +/-   15.81  0.040 / 0.050
G02     199.4          14.0               14.2 +/-    8.74      36.1 +/-    8.74  0.060 / 0.070
G06     174.8          44.0               12.2 +/-   14.49      16.7 +/-   14.49  0.110 / 0.330
G13     231.6          18.2               13.8 +/-   10.84      31.8 +/-   10.84  0.140 / 0.350
G15     264.5          9.9                10.9 +/-   11.56      30.5 +/-   11.56  0.100 / 0.200
G17     12.9           65.5               10.6 +/-    7.41      11.5 +/-    7.41  0.100 / 0.180
G19     298.3          71.5               12.5 +/-    2.89      13.1 +/-    2.89  0.120 / 0.300
G24     313.5          24.8                9.9 +/-   13.71      19.3 +/-   13.71  0.200 / 0.350
G28     75.2           47.3                9.8 +/-    7.31      12.8 +/-    7.31  0.140 / 0.420
G30     155.3          19.4               13.3 +/-   15.22      29.8 +/-   15.22  0.160 / 0.460