PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-00:13:10
G05     47.9           19.0                8.3 +/-    2.24      18.6 +/-    2.24  0.190 / 0.190
G13     79.6           36.4               12.2 +/-    0.74      18.9 +/-    0.74  0.190 / 0.150
G15     131.9          49.9               13.5 +/-    0.75      17.1 +/-    0.75  0.060 / 0.060
G16     315.6          12.1                6.8 +/-   14.86      18.2 +/-   14.86  0.070 / 0.080
G20     242.6          23.4               13.2 +/-    2.12      26.7 +/-    2.12  0.190 / 0.300
G21     309.6          44.3               11.2 +/-    0.98      15.3 +/-    0.98  0.210 / 0.380
G25     200.8          13.2               14.5 +/-    2.89      37.8 +/-    2.89  0.070 / 0.100
G26     289.0          21.1                9.9 +/-    1.39      21.1 +/-    1.39  0.070 / 0.090
G29     153.4          77.1               11.4 +/-    0.67      11.7 +/-    0.67  0.140 / 0.290