PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/06-16:42:40
G02     201.3          17.5               15.7 +/-    0.80      36.8 +/-    0.80  0.020 / 0.040
G06     170.7          53.9               16.0 +/-    1.89      19.3 +/-    1.89  0.030 / 0.050
G13     229.1          13.4               15.0 +/-    2.71      38.8 +/-    2.71  0.080 / 0.180
G17     25.4           57.9               11.4 +/-    0.46      13.2 +/-    0.46  0.090 / 0.190
G19     330.0          71.3               12.4 +/-    0.57      13.1 +/-    0.57  0.070 / 0.140
G24     311.4          28.0               11.0 +/-    1.45      20.1 +/-    1.45  0.080 / 0.130
G28     88.1           39.6               12.1 +/-    0.55      17.7 +/-    0.55  0.150 / 0.690
G30     157.7          16.7               12.7 +/-    1.61      30.3 +/-    1.61  0.210 / 0.540