PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/03-14:12:20
G02     203.3          27.0                8.4 +/-    2.44      15.7 +/-    2.44  0.110 / 0.100
G06     159.2          66.2                8.4 +/-    0.54       9.1 +/-    0.54  0.060 / 0.110
G12     306.8          16.9                5.3 +/-    1.99      12.7 +/-    1.99  0.120 / 0.330
G17     34.2           50.5                5.5 +/-    0.64       7.0 +/-    0.64  0.220 / 0.270
G19     339.5          68.5                6.7 +/-    0.84       7.2 +/-    0.84  0.040 / 0.040
G24     300.7          37.3                5.4 +/-    0.40       8.2 +/-    0.40  0.030 / 0.030
G28     97.9           34.2                6.7 +/-    0.73      10.8 +/-    0.73  0.040 / 0.040