PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/26-14:57:50
G02     204.7          32.9                7.4 +/-    2.83      12.2 +/-    2.83  0.100 / 0.090
G06     150.2          71.7                6.7 +/-    0.57       7.0 +/-    0.57  0.130 / 0.080
G12     309.8          20.8                4.7 +/-    2.07      10.2 +/-    2.07  0.230 / 0.270
G17     38.8           46.7                6.1 +/-    1.87       8.1 +/-    1.87  0.110 / 0.280
G19     354.4          66.1                5.9 +/-    0.26       6.4 +/-    0.26  0.040 / 0.030
G24     294.8          40.0                4.9 +/-    9.34       7.1 +/-    9.34  0.030 / 0.020
G28     103.4          30.6                6.2 +/-    0.86      10.8 +/-    0.86  0.030 / 0.030