PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/03-01:57:50
G02     30.7           57.7                7.5 +/-    0.68       8.7 +/-    0.68  0.030 / 0.050
G05     142.4          59.3                8.6 +/-    1.00       9.9 +/-    1.00  0.020 / 0.040
G06     51.8           18.6                6.2 +/-    1.14      14.1 +/-    1.14  0.030 / 0.050
G12     205.5          72.1                9.1 +/-    0.91       9.5 +/-    0.91  0.040 / 0.040
G19     96.5           13.2                8.7 +/-    1.98      22.6 +/-    1.98  0.060 / 0.070
G25     303.0          50.0                7.4 +/-    0.64       9.3 +/-    0.64  0.070 / 0.050
G29     304.3          24.5                7.9 +/-    1.53      15.5 +/-    1.53  0.050 / 0.060