PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/26-16:27:50
G01     320.6          12.6                5.0 +/-    4.88      13.1 +/-    4.88  0.210 / 0.160
G08     264.7          16.1                9.1 +/-    1.44      22.0 +/-    1.44  0.250 / 0.280
G10     68.8           56.9                6.1 +/-    0.50       7.2 +/-    0.50  0.030 / 0.040
G11     309.7          18.3                6.6 +/-    1.13      15.1 +/-    1.13  0.030 / 0.040
G14     276.7          67.8                7.1 +/-    0.57       7.6 +/-    0.57  0.150 / 0.210
G27     227.5          12.5                8.1 +/-    2.60      21.3 +/-    2.60  0.140 / 0.280
G31     177.5          35.1                8.4 +/-    1.27      13.3 +/-    1.27  0.060 / 0.080
G32     353.5          71.5                6.3 +/-    0.33       6.6 +/-    0.33  0.050 / 0.090