PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/03-17:43:00
G02     31.0           57.0                7.4 +/-    0.47       8.7 +/-    0.47  0.030 / 0.040
G05     138.7          63.0               10.4 +/-    1.20      11.5 +/-    1.20  0.030 / 0.040
G06     55.2           12.6                7.2 +/-    1.92      18.8 +/-    1.92  0.040 / 0.040
G12     187.4          62.3                8.4 +/-    1.01       9.4 +/-    1.01  0.030 / 0.040
G19     99.8           12.1                8.9 +/-    0.98      23.6 +/-    0.98  0.040 / 0.050
G25     293.5          55.3                7.0 +/-    0.82       8.3 +/-    0.82  0.040 / 0.050
G29     307.5          27.6                6.0 +/-    1.26      11.0 +/-    1.26  0.090 / 0.180