PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/02-17:42:40
G02     29.1           58.4                9.2 +/-    1.16      10.6 +/-    1.16  0.030 / 0.040
G05     141.8          61.5               10.8 +/-    0.75      12.1 +/-    0.75  0.030 / 0.030
G06     54.2           14.0                7.7 +/-    2.31      19.7 +/-    2.31  0.050 / 0.040
G12     188.5          64.5                8.9 +/-    0.42       9.8 +/-    0.42  0.060 / 0.040
G19     98.3           13.2                9.3 +/-    3.40      24.1 +/-    3.40  0.020 / 0.030
G25     296.4          54.3                6.6 +/-    3.95       7.9 +/-    3.95  0.030 / 0.030
G29     306.3          26.3                8.1 +/-    1.88      15.5 +/-    1.88  0.090 / 0.160