PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/13-09:12:30
G02     25.3           62.5                4.4 +/-    0.63       4.9 +/-    0.63  0.040 / 0.040
G05     152.2          52.3                8.5 +/-    0.44      10.4 +/-    0.44  0.040 / 0.040
G06     47.2           28.2                1.6 +/-    1.15       2.8 +/-    1.15  0.190 / 0.290
G12     236.8          78.0                3.9 +/-    0.63       4.0 +/-    0.63  0.180 / 0.350
G19     91.8           15.6                5.9 +/-    0.96      14.4 +/-    0.96  0.030 / 0.030
G20     199.3          12.8                0.7 +/-    6.11       1.9 +/-    6.11  0.030 / 0.030
G24     216.3          10.5                2.5 +/-    2.53       6.9 +/-    2.53  0.130 / 0.540
G25     309.3          45.1                1.2 +/-    2.70       1.7 +/-    2.70  0.090 / 0.530
G29     300.9          22.7                2.1 +/-    1.18       4.3 +/-    1.18  0.070 / 0.100