PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-14:42:50
G01     100.4          28.7               12.0 +/-    0.83      21.6 +/-    0.83  0.030 / 0.040
G07     115.9          53.2               11.9 +/-    0.75      14.4 +/-    0.75  0.030 / 0.040
G08     41.7           14.5                7.4 +/-    3.19      18.6 +/-    3.19  0.060 / 0.110
G11     79.4           42.2               11.7 +/-    0.89      16.5 +/-    0.89  0.060 / 0.110
G13     303.9          32.4               13.0 +/-    1.46      21.7 +/-    1.46  0.040 / 0.060
G17     208.9          44.2               13.9 +/-    1.60      18.9 +/-    1.60  0.030 / 0.050
G18     73.1           24.6               10.8 +/-    0.77      21.2 +/-    0.77  0.030 / 0.050
G19     211.4          16.3               12.6 +/-    3.94      30.4 +/-    3.94  0.040 / 0.050
G28     330.7          61.7               10.8 +/-    0.54      12.0 +/-    0.54  0.060 / 0.090
G30     54.7           80.1               11.5 +/-    1.04      11.7 +/-    1.04  0.050 / 0.090