PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/16-08:28:00
G01     39.1           13.2                2.3 +/-    2.98       5.9 +/-    2.98  0.110 / 0.140
G02     200.0          10.6                0.1 +/-    3.07       0.3 +/-    3.07  0.100 / 0.110
G06     174.0          43.3                7.1 +/-    0.76       9.8 +/-    0.76  0.110 / 0.300
G13     233.7          19.4                5.4 +/-    2.67      12.0 +/-    2.67  0.100 / 0.330
G17     14.3           65.3                3.8 +/-    0.39       4.2 +/-    0.39  0.130 / 0.300
G19     282.8          68.6                4.7 +/-    0.30       5.0 +/-    0.30  0.110 / 0.350
G24     313.2          26.2                2.9 +/-    1.04       5.4 +/-    1.04  0.050 / 0.050
G28     75.4           46.1                4.7 +/-    0.71       6.2 +/-    0.71  0.050 / 0.060
G30     156.2          25.0                5.5 +/-    1.71      10.8 +/-    1.71  0.030 / 0.030