PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/30-18:42:50
G01     255.0          36.9               10.3 +/-    1.98      15.7 +/-    1.98  0.030 / 0.050
G03     316.4          42.8                8.2 +/-    1.37      11.5 +/-    1.37  0.040 / 0.040
G11     241.9          14.5               10.2 +/-    1.94      25.6 +/-    1.94  0.050 / 0.080
G14     56.1           43.5                8.8 +/-    1.28      12.1 +/-    1.28  0.050 / 0.080
G22     307.9          63.9                7.5 +/-    0.61       8.2 +/-    0.61  0.110 / 0.110
G23     284.5          18.0                9.7 +/-    1.55      22.4 +/-    1.55  0.210 / 0.220
G25     42.5           12.2                6.9 +/-    3.08      18.3 +/-    3.08  0.030 / 0.040
G26     139.2          35.3               11.3 +/-    1.00      17.9 +/-    1.00  0.030 / 0.030
G31     41.8           61.8                7.0 +/-    0.55       7.8 +/-    0.55  0.080 / 0.100
G32     74.8           24.6                9.3 +/-    1.52      18.4 +/-    1.52  0.080 / 0.110