PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-05:12:30
G10     298.2          52.0                6.5 +/-    1.97       8.1 +/-    1.97  0.040 / 0.030
G15     46.1           28.2                4.5 +/-    1.21       8.1 +/-    1.21  0.040 / 0.030
G20     19.1           63.1                6.7 +/-    1.34       7.4 +/-    1.34  0.050 / 0.090
G21     97.2           74.3                7.7 +/-    0.33       8.0 +/-    0.33  0.060 / 0.080
G24     96.3           26.7                6.1 +/-    1.37      11.5 +/-    1.37  0.080 / 0.110
G27     299.5          34.6                6.8 +/-    1.15      10.9 +/-    1.15  0.080 / 0.120
G32     210.6          34.5                9.0 +/-    1.98      14.4 +/-    1.98  0.060 / 0.150