PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-15:27:30
G02     252.3          75.5                8.8 +/-    0.64       9.1 +/-    0.64  0.050 / 0.200
G05     171.7          19.2               10.8 +/-    1.33      24.3 +/-    1.33  0.070 / 0.230
G06     40.1           51.8                7.9 +/-    0.46       9.8 +/-    0.46  0.130 / 0.260
G12     321.8          61.2                8.4 +/-    0.76       9.5 +/-    0.76  0.120 / 0.250
G17     76.0           17.9                7.1 +/-    0.81      16.5 +/-    0.81  0.040 / 0.050
G19     58.9           39.2                8.5 +/-    0.36      12.5 +/-    0.36  0.040 / 0.040
G24     237.0          31.1               12.7 +/-    1.51      21.7 +/-    1.51  0.040 / 0.040
G25     317.3          18.8                7.3 +/-    2.13      16.5 +/-    2.13  0.040 / 0.050