PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-20:42:30
G10     252.5          28.5               12.9 +/-    2.56      23.4 +/-    2.56  0.040 / 0.050
G13     51.5           28.4                9.4 +/-    1.54      17.1 +/-    1.54  0.030 / 0.040
G15     91.5           60.1               12.1 +/-    0.39      13.7 +/-    0.39  0.110 / 0.340
G16     292.8          15.5                8.7 +/-    1.81      21.5 +/-    1.81  0.110 / 0.340
G20     272.8          52.2               11.6 +/-    2.76      14.3 +/-    2.76  0.110 / 0.100
G21     336.6          61.7               12.3 +/-    0.62      13.8 +/-    0.62  0.130 / 0.120
G26     265.5          14.7                9.9 +/-    1.47      24.9 +/-    1.47  0.070 / 0.150
G29     165.4          48.1               13.5 +/-    0.69      17.5 +/-    0.69  0.150 / 0.200