PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/15-18:12:40
G01     306.8          33.3                7.8 +/-    1.19      12.8 +/-    1.19  0.060 / 0.150
G10     106.3          40.3                9.4 +/-    0.64      13.6 +/-    0.64  0.080 / 0.140
G11     283.3          27.7                7.2 +/-    1.05      13.3 +/-    1.05  0.060 / 0.090
G14     356.1          66.9                7.0 +/-    0.55       7.5 +/-    0.55  0.060 / 0.100
G18     118.0          12.2               10.1 +/-    2.04      26.9 +/-    2.04  0.030 / 0.040
G22     309.8          26.3                5.5 +/-    1.32      10.4 +/-    1.32  0.020 / 0.040
G25     82.1           16.8                9.2 +/-    1.20      21.8 +/-    1.20  0.070 / 0.210
G31     167.4          65.1                8.8 +/-    1.09       9.6 +/-    1.09  0.080 / 0.260
G32     36.5           52.2                8.1 +/-    0.66       9.9 +/-    0.66  0.030 / 0.050