PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-07:42:50
G01     222.3          13.3                6.2 +/-    2.86      16.1 +/-    2.86  0.060 / 0.100
G03     277.6          68.0                3.5 +/-    0.63       3.7 +/-    0.63  0.040 / 0.080
G09     298.2          13.5                4.8 +/-    5.36      12.3 +/-    5.36  0.040 / 0.050
G14     92.1           19.3                3.0 +/-    1.15       6.7 +/-    1.15  0.030 / 0.040
G16     144.1          49.8                8.0 +/-    0.71      10.1 +/-    0.71  0.280 / 0.410
G22     204.6          66.2                5.3 +/-    1.54       5.8 +/-    1.54  0.140 / 0.350
G23     310.3          39.7                5.4 +/-    2.08       7.9 +/-    2.08  0.040 / 0.070
G26     90.6           55.4                5.2 +/-    1.31       6.2 +/-    1.31  0.050 / 0.060
G31     46.9           28.5               -0.1 +/-    0.67      -0.1 +/-    0.67  0.090 / 0.170