PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/03-04:27:50
G01     115.3          20.4                8.9 +/-    1.72      19.5 +/-    1.72  0.080 / 0.210
G07     93.2           62.4                5.9 +/-    0.84       6.5 +/-    0.84  0.190 / 0.170
G08     42.8           25.3                4.6 +/-    2.41       8.8 +/-    2.41  0.030 / 0.030
G09     174.6          19.6                7.9 +/-    1.13      17.6 +/-    1.13  0.040 / 0.020
G11     98.7           41.4                8.1 +/-    0.83      11.5 +/-    0.83  0.030 / 0.030
G13     315.3          23.1                2.8 +/-    1.38       5.7 +/-    1.38  0.030 / 0.030
G17     201.6          31.4                5.3 +/-    2.09       9.0 +/-    2.09  0.050 / 0.050
G28     297.2          57.8                4.2 +/-    1.07       4.8 +/-    1.07  0.040 / 0.050
G30     350.7          71.2                5.2 +/-    0.52       5.5 +/-    0.52  0.070 / 0.100