PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-18:42:40
G02     207.6          44.2               14.2 +/-    0.67      19.4 +/-    0.67  0.090 / 0.130
G06     120.0          78.2               11.0 +/-    0.76      11.2 +/-    0.76  0.070 / 0.150
G12     313.7          26.2                9.7 +/-    2.46      18.4 +/-    2.46  0.070 / 0.080
G17     44.9           42.2               10.2 +/-    0.97      14.4 +/-    0.97  0.050 / 0.090
G19     15.6           60.3               11.0 +/-    0.48      12.5 +/-    0.48  0.060 / 0.080
G24     283.8          42.3               10.5 +/-    1.18      14.8 +/-    1.18  0.080 / 0.090
G28     111.9          24.1               10.4 +/-    0.77      20.8 +/-    0.77  0.070 / 0.200