PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/05-20:57:50
G01     53.7           27.8               18.3 +/-    1.04      33.7 +/-    1.04  0.070 / 0.110
G06     178.2          21.6               31.4 +/-    2.58      66.4 +/-    2.58  0.080 / 0.090
G07     145.0          16.7               26.8 +/-    1.91      63.9 +/-    1.91  0.050 / 0.060
G11     46.2           19.5               15.8 +/-    1.15      35.2 +/-    1.15  0.050 / 0.060
G13     255.2          32.5               25.9 +/-    1.20      43.2 +/-    1.20  0.090 / 0.350
G15     287.8          16.1               19.8 +/-    2.11      47.9 +/-    2.11  0.170 / 0.360
G17     276.0          76.4               24.9 +/-    0.74      25.5 +/-    0.74  0.040 / 0.050
G19     240.2          55.3               26.0 +/-    0.77      30.9 +/-    0.77  0.040 / 0.060
G28     46.7           54.3               21.2 +/-    0.47      25.5 +/-    0.47  0.060 / 0.170
G30     147.4          44.4               27.6 +/-    0.66      37.6 +/-    0.66  0.060 / 0.140