PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-16:42:50
G02     209.4          46.2               10.4 +/-    0.92      13.7 +/-    0.92  0.060 / 0.060
G06     100.2          78.6                9.9 +/-    0.43      10.0 +/-    0.43  0.100 / 0.060
G12     315.6          30.2               10.7 +/-    1.76      18.7 +/-    1.76  0.070 / 0.090
G17     48.7           38.8                8.8 +/-    0.88      13.1 +/-    0.88  0.100 / 0.090
G19     19.4           58.8                9.7 +/-    0.85      11.2 +/-    0.85  0.030 / 0.020
G24     279.0          43.0               11.3 +/-    0.49      15.7 +/-    0.49  0.040 / 0.020
G28     114.3          22.0                9.3 +/-    1.68      19.5 +/-    1.68  0.040 / 0.040