PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-02:42:40
G02     55.0           36.1                8.1 +/-    0.88      12.6 +/-    0.88  0.050 / 0.070
G05     67.9           64.7                8.6 +/-    0.40       9.4 +/-    0.40  0.060 / 0.090
G12     186.1          39.6               11.7 +/-    0.71      17.1 +/-    0.71  0.140 / 0.510
G13     133.4          10.8                6.4 +/-   19.89      17.5 +/-   19.89  0.100 / 0.450
G20     215.5          14.0               14.7 +/-    2.00      37.6 +/-    2.00  0.200 / 0.320
G21     266.0          13.0               12.0 +/-    4.46      31.2 +/-    4.46  0.290 / 0.300
G25     249.3          55.7                9.5 +/-    1.91      11.2 +/-    1.91  0.210 / 0.590
G29     323.7          47.8                9.1 +/-    0.52      11.9 +/-    0.52  0.200 / 0.640