PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-00:27:50
G01     127.4          11.5                9.0 +/-    2.56      24.3 +/-    2.56  0.120 / 0.090
G07     50.9           69.6                5.5 +/-    0.47       5.9 +/-    0.47  0.090 / 0.100
G08     51.7           41.4                4.9 +/-    1.01       6.9 +/-    1.01  0.320 / 0.290
G09     179.1          37.5                7.6 +/-    1.43      11.6 +/-    1.43  0.220 / 0.310
G11     121.4          34.4                7.8 +/-    1.37      12.5 +/-    1.37  0.140 / 0.330
G13     321.6          10.5               -6.6 +/-   10.93     -18.3 +/-   10.93  0.210 / 0.270
G17     200.3          13.7                6.1 +/-    3.57      15.7 +/-    3.57  0.050 / 0.050
G28     276.6          53.2                7.2 +/-    3.43       8.7 +/-    3.43  0.060 / 0.040
G30     339.0          63.4                4.7 +/-    0.76       5.2 +/-    0.76  0.030 / 0.030