PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/30-16:28:10
G02     71.9           22.3                9.7 +/-    0.89      20.3 +/-    0.89  0.030 / 0.060
G05     46.8           49.6               10.1 +/-    1.10      12.8 +/-    1.10  0.020 / 0.050
G12     182.8          18.4               14.5 +/-    2.77      33.2 +/-    2.77  0.070 / 0.270
G13     117.2          25.0               14.1 +/-    1.19      27.6 +/-    1.19  0.080 / 0.260
G15     154.7          24.5               16.0 +/-    0.84      31.6 +/-    0.84  0.100 / 0.170
G18     222.9          14.7               14.9 +/-    3.54      37.3 +/-    3.54  0.070 / 0.190
G20     222.5          75.4               13.2 +/-    0.66      13.6 +/-    0.66  0.040 / 0.050
G21     284.7          28.9               10.0 +/-    2.23      17.9 +/-    2.23  0.050 / 0.050
G25     218.2          39.1               16.1 +/-    0.70      23.8 +/-    0.70  0.040 / 0.090
G29     351.7          75.2               12.3 +/-    0.91      12.6 +/-    0.91  0.060 / 0.090