PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-05:58:00
G01     254.5          36.9                8.1 +/-    1.14      12.5 +/-    1.14  0.110 / 0.400
G03     316.3          38.3                7.2 +/-    1.15      10.7 +/-    1.15  0.140 / 0.390
G11     237.4          14.7                8.7 +/-    1.61      21.8 +/-    1.61  0.030 / 0.040
G14     58.4           41.2                6.5 +/-    0.48       9.3 +/-    0.48  0.030 / 0.040
G16     165.7          14.6                6.1 +/-   10.36      15.4 +/-   10.36  0.060 / 0.090
G22     308.3          63.5                8.9 +/-    1.11       9.8 +/-    1.11  0.060 / 0.100
G23     283.6          16.1                8.6 +/-    2.33      20.8 +/-    2.33  0.150 / 0.420
G26     141.3          34.5               10.1 +/-    0.95      16.2 +/-    0.95  0.150 / 0.450
G31     41.5           62.8                7.7 +/-    0.53       8.6 +/-    0.53  0.050 / 0.090
G32     73.9           26.2                6.3 +/-    0.88      12.0 +/-    0.88  0.050 / 0.100