PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-14:27:40
G02     46.8           43.5                6.5 +/-    1.20       8.9 +/-    1.20  0.030 / 0.020
G05     105.8          70.1                7.5 +/-    0.37       7.9 +/-    0.37  0.030 / 0.030
G12     191.1          52.3               10.1 +/-    0.59      12.4 +/-    0.59  0.070 / 0.080
G20     201.8          40.2                9.3 +/-    0.78      13.4 +/-    0.78  0.080 / 0.100
G25     267.1          58.9                8.0 +/-    2.43       9.2 +/-    2.43  0.040 / 0.030
G29     320.9          44.7                5.9 +/-    0.59       8.0 +/-    0.59  0.030 / 0.040