PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/06-12:42:50
G01     112.3          22.5                5.7 +/-    2.04      11.8 +/-    2.04  0.040 / 0.020
G07     97.5           62.0                6.3 +/-    0.84       7.0 +/-    0.84  0.030 / 0.020
G08     42.4           23.6                4.6 +/-    1.91       9.4 +/-    1.91  0.030 / 0.030
G09     174.4          16.8                4.1 +/-    1.33       9.9 +/-    1.33  0.030 / 0.030
G11     95.2           42.0                5.8 +/-    0.91       8.2 +/-    0.91  0.110 / 0.130
G13     313.4          25.3                4.6 +/-    1.42       9.0 +/-    1.42  0.100 / 0.120
G17     203.4          33.1                4.5 +/-    1.73       7.4 +/-    1.73  0.090 / 0.200
G18     85.7           23.1                4.6 +/-    1.51       9.4 +/-    1.51  0.120 / 0.230
G28     306.6          59.7                3.8 +/-    1.15       4.4 +/-    1.15  0.090 / 0.130
G30     359.0          73.9                5.4 +/-    0.47       5.6 +/-    0.47  0.080 / 0.150