PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-18:27:50
G01     58.5           30.0                8.8 +/-    0.55      15.4 +/-    0.55  0.040 / 0.050
G07     143.0          21.1               10.2 +/-    0.85      21.8 +/-    0.85  0.030 / 0.050
G11     47.7           22.8                7.9 +/-    0.87      16.3 +/-    0.87  0.050 / 0.120
G13     260.7          34.7                9.6 +/-    1.17      15.4 +/-    1.17  0.060 / 0.140
G15     293.5          15.9                9.1 +/-    2.34      22.0 +/-    2.34  0.120 / 0.390
G17     260.7          75.4                9.0 +/-    0.80       9.3 +/-    0.80  0.100 / 0.370
G18     41.5           12.0                8.3 +/-    2.68      22.2 +/-    2.68  0.020 / 0.030
G19     234.0          50.0               12.1 +/-    0.99      15.2 +/-    0.99  0.040 / 0.040
G28     38.5           56.2                8.4 +/-    0.75       9.9 +/-    0.75  0.030 / 0.050
G30     144.7          50.5               10.7 +/-    1.06      13.4 +/-    1.06  0.030 / 0.060