PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/03-23:42:50
G10     290.1          48.7               12.4 +/-    3.67      15.8 +/-    3.67  0.150 / 0.150
G15     47.2           33.2               12.0 +/-    1.05      19.7 +/-    1.05  0.100 / 0.140
G18     346.3          66.7               12.6 +/-    0.61      13.6 +/-    0.61  0.090 / 0.130
G20     68.5           20.3               13.0 +/-    1.60      28.3 +/-    1.60  0.090 / 0.130
G21     82.0           75.7               13.3 +/-    0.56      13.6 +/-    0.56  0.040 / 0.030
G24     103.8          24.6               15.8 +/-    0.93      31.1 +/-    0.93  0.040 / 0.030
G27     303.5          33.1               10.3 +/-    1.36      16.9 +/-    1.36  0.060 / 0.080
G32     209.6          25.6               17.5 +/-    1.33      33.8 +/-    1.33  0.050 / 0.080