PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-21:42:30
G03     201.9          46.9                9.2 +/-    0.82      12.1 +/-    0.82  0.090 / 0.100
G07     265.2          21.4               10.1 +/-    3.93      21.5 +/-    3.93  0.080 / 0.120
G09     314.7          35.8                7.7 +/-    1.14      12.1 +/-    1.14  0.030 / 0.040
G16     72.5           63.4                8.3 +/-    0.50       9.2 +/-    0.50  0.040 / 0.040
G22     184.9          31.2                9.1 +/-    1.68      15.5 +/-    1.68  0.090 / 0.120
G23     342.2          69.3                7.5 +/-    0.38       8.0 +/-    0.38  0.140 / 0.120
G26     47.0           35.3                7.7 +/-    0.81      12.2 +/-    0.81  0.130 / 0.300
G27     125.3          17.9               10.0 +/-    2.64      23.1 +/-    2.64  0.140 / 0.300