PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-05:57:40
G01     309.0          31.7                4.1 +/-    2.39       7.0 +/-    2.39  0.030 / 0.030
G10     102.7          43.0                4.4 +/-    0.81       6.1 +/-    0.81  0.030 / 0.050
G11     282.1          29.8                6.2 +/-    1.35      10.9 +/-    1.35  0.070 / 0.060
G14     355.4          67.5                3.5 +/-    0.60       3.7 +/-    0.60  0.080 / 0.040
G18     114.9          18.1                4.2 +/-    0.79       9.8 +/-    0.79  0.040 / 0.010
G22     308.7          24.8                4.4 +/-    1.43       8.7 +/-    1.43  0.050 / 0.010
G25     80.2           15.2                5.6 +/-    1.81      13.8 +/-    1.81  0.090 / 0.140
G31     168.8          62.2                7.4 +/-    0.32       8.2 +/-    0.32  0.070 / 0.150
G32     32.2           55.0                3.7 +/-    0.84       4.4 +/-    0.84  0.040 / 0.040