PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-08:12:40
G01     40.5           15.6                3.6 +/-    2.02       8.8 +/-    2.02  0.060 / 0.160
G06     174.8          39.9                7.0 +/-    1.19      10.2 +/-    1.19  0.060 / 0.120
G13     236.2          21.5                7.0 +/-    1.59      14.9 +/-    1.59  0.040 / 0.060
G15     272.3          11.5                4.3 +/-    1.74      11.5 +/-    1.74  0.040 / 0.060
G17     9.8            67.9                5.8 +/-    0.84       6.2 +/-    0.84  0.080 / 0.230
G19     274.3          67.2                5.3 +/-    0.70       5.7 +/-    0.70  0.090 / 0.220
G24     314.6          23.8                2.2 +/-    1.56       4.5 +/-    1.56  0.120 / 0.160
G28     71.3           47.6                4.8 +/-    0.43       6.3 +/-    0.43  0.140 / 0.170
G30     155.4          28.0                7.9 +/-    1.43      14.4 +/-    1.43  0.030 / 0.040