PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-23:58:10
G10     248.8          24.2               12.4 +/-    1.07      24.7 +/-    1.07  0.070 / 0.190
G13     56.7           32.4               10.0 +/-    0.81      16.7 +/-    0.81  0.090 / 0.150
G15     94.3           58.4               11.4 +/-    0.53      13.1 +/-    0.53  0.040 / 0.050
G16     299.7          14.5                8.5 +/-    1.43      21.5 +/-    1.43  0.030 / 0.050
G18     265.1          53.7               10.7 +/-    1.05      12.9 +/-    1.05  0.040 / 0.060
G20     42.1           49.2                8.7 +/-    0.60      11.1 +/-    0.60  0.030 / 0.060
G21     330.9          58.9                9.9 +/-    0.27      11.3 +/-    0.27  0.110 / 0.430
G26     271.9          16.2               11.1 +/-    1.51      26.8 +/-    1.51  0.110 / 0.400
G29     163.3          49.8               12.2 +/-    0.69      15.5 +/-    0.69  0.050 / 0.080