PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/24-15:27:50
G02     41.4           48.5                9.8 +/-    0.31      12.5 +/-    0.31  0.030 / 0.050
G05     127.0          67.8               12.2 +/-    0.34      13.0 +/-    0.34  0.030 / 0.040
G06     58.1           11.9               11.3 +/-    3.68      30.2 +/-    3.68  0.020 / 0.040
G12     193.9          58.9               10.4 +/-    1.71      12.0 +/-    1.71  0.030 / 0.040
G20     200.1          34.4               13.3 +/-    2.77      21.3 +/-    2.77  0.070 / 0.130
G25     279.2          58.6               11.7 +/-    1.15      13.5 +/-    1.15  0.100 / 0.120
G29     316.5          39.7               11.6 +/-    1.38      17.0 +/-    1.38  0.040 / 0.050