PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/12-03:42:30
G10     265.9          37.5               12.0 +/-    1.34      18.3 +/-    1.34  0.120 / 0.140
G13     42.4           19.2                7.3 +/-    0.88      16.3 +/-    0.88  0.110 / 0.170
G15     61.0           50.3                9.0 +/-    0.71      11.3 +/-    0.71  0.040 / 0.040
G16     278.9          12.5               10.2 +/-    1.50      26.9 +/-    1.50  0.040 / 0.040
G20     305.2          63.7                9.3 +/-    0.47      10.2 +/-    0.47  0.150 / 0.390
G21     358.4          70.9               10.3 +/-    0.68      10.9 +/-    0.68  0.170 / 0.530
G24     120.6          13.7               11.4 +/-    1.79      29.3 +/-    1.79  0.070 / 0.080
G27     319.0          18.2                8.0 +/-    1.07      18.4 +/-    1.07  0.060 / 0.080
G29     168.2          33.0               12.7 +/-    1.58      21.0 +/-    1.58  0.080 / 0.280