PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-17:27:50
G01     41.1           16.3               12.6 +/-    2.72      30.3 +/-    2.72  0.130 / 0.190
G02     200.0          7.2                 5.3 +/-   15.85      15.5 +/-   15.85  0.120 / 0.290
G06     173.4          40.7               15.0 +/-    1.38      21.5 +/-    1.38  0.090 / 0.110
G13     237.4          21.9               13.3 +/-    1.55      27.9 +/-    1.55  0.060 / 0.130
G15     272.8          11.9               13.5 +/-    4.48      36.2 +/-    4.48  0.100 / 0.550
G17     0.1            70.7               12.9 +/-    0.49      13.6 +/-    0.49  0.120 / 0.320
G19     272.7          67.0               12.7 +/-    0.78      13.7 +/-    0.78  0.060 / 0.060
G24     316.1          20.3               10.9 +/-    2.39      23.9 +/-    2.39  0.070 / 0.060
G28     71.8           46.8               12.7 +/-    0.56      16.7 +/-    0.56  0.040 / 0.040
G30     154.9          27.9               15.3 +/-    0.93      28.1 +/-    0.93  0.030 / 0.030