PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-16:57:50
G01     123.1          15.0               20.8 +/-    3.86      51.9 +/-    3.86  0.050 / 0.050
G07     67.0           68.7               18.6 +/-    0.27      19.8 +/-    0.27  0.030 / 0.060
G08     47.9           37.1               16.8 +/-    1.05      25.7 +/-    1.05  0.030 / 0.030
G09     177.5          30.6               19.2 +/-    1.68      33.2 +/-    1.68  0.030 / 0.030
G11     113.4          37.9               19.3 +/-    0.98      29.1 +/-    0.98  0.030 / 0.020
G13     319.6          15.7               14.4 +/-    2.96      35.3 +/-    2.96  0.030 / 0.040
G17     201.5          17.7               19.2 +/-    1.62      44.6 +/-    1.62  0.150 / 0.250
G18     99.2           19.0               19.4 +/-    1.53      43.8 +/-    1.53  0.160 / 0.240
G28     284.8          55.5               19.2 +/-    2.56      22.8 +/-    2.56  0.090 / 0.210
G30     340.3          65.1               18.3 +/-    0.33      20.0 +/-    0.33  0.100 / 0.200