PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/13-19:58:00
G01     252.1          35.7               12.2 +/-    2.33      19.1 +/-    2.33  0.040 / 0.040
G03     316.0          44.2               10.4 +/-    0.79      14.2 +/-    0.79  0.030 / 0.050
G11     239.3          13.2                8.2 +/-    2.36      21.2 +/-    2.36  0.080 / 0.080
G14     59.1           41.7               10.5 +/-    0.99      14.8 +/-    0.99  0.070 / 0.090
G22     305.6          65.5               11.6 +/-    0.38      12.6 +/-    0.38  0.040 / 0.040
G23     286.1          19.0               11.3 +/-    0.91      25.5 +/-    0.91  0.030 / 0.040
G25     40.5           10.8                9.3 +/-    2.78      25.4 +/-    2.78  0.100 / 0.340
G26     137.8          37.1               13.0 +/-    1.06      19.8 +/-    1.06  0.080 / 0.310
G31     40.9           59.9               10.8 +/-    0.47      12.2 +/-    0.47  0.060 / 0.090
G32     76.7           23.4               11.0 +/-    1.07      22.3 +/-    1.07  0.080 / 0.110