PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/12-14:57:50
G01     289.9          40.3                4.2 +/-    5.56       6.1 +/-    5.56  0.040 / 0.080
G03     313.0          21.9                7.0 +/-    4.04      14.7 +/-    4.04  0.040 / 0.060
G10     120.4          28.4                9.6 +/-    0.96      17.4 +/-    0.96  0.070 / 0.070
G11     267.4          25.3                6.2 +/-    1.85      12.0 +/-    1.85  0.050 / 0.050
G14     21.6           59.7                8.3 +/-    1.59       9.5 +/-    1.59  0.090 / 0.140
G22     314.4          41.8                7.9 +/-    1.47      11.2 +/-    1.47  0.100 / 0.130
G25     66.7           19.2                8.3 +/-    1.18      18.6 +/-    1.18  0.030 / 0.030
G31     116.1          79.3                9.5 +/-    0.74       9.7 +/-    0.74  0.030 / 0.030
G32     52.7           40.5                5.6 +/-    1.48       8.1 +/-    1.48  0.160 / 0.200