PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-17:27:50
G01     111.2          23.3               18.4 +/-    1.76      37.4 +/-    1.76  0.060 / 0.120
G07     99.4           61.7               16.8 +/-    0.79      18.8 +/-    0.79  0.050 / 0.120
G08     42.8           25.5               14.3 +/-    0.87      27.7 +/-    0.87  0.030 / 0.040
G09     175.5          17.3               19.2 +/-    2.04      45.2 +/-    2.04  0.030 / 0.040
G11     95.7           42.5               18.1 +/-    0.68      25.3 +/-    0.68  0.030 / 0.030
G13     312.7          25.8               19.3 +/-    2.78      37.1 +/-    2.78  0.040 / 0.040
G17     205.0          31.2               18.5 +/-    1.77      31.6 +/-    1.77  0.050 / 0.050
G18     85.2           23.6               15.0 +/-    0.64      30.2 +/-    0.64  0.040 / 0.060
G28     309.8          60.2               17.4 +/-    0.51      19.7 +/-    0.51  0.070 / 0.110
G30     9.4            75.7               17.4 +/-    1.08      17.9 +/-    1.08  0.070 / 0.090