PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-18:28:00
G08     296.4          22.6                8.0 +/-    1.53      16.5 +/-    1.53  0.070 / 0.110
G10     359.3          62.8                8.2 +/-    0.70       9.1 +/-    0.70  0.060 / 0.100
G14     227.6          44.0               11.8 +/-    1.46      16.1 +/-    1.46  0.040 / 0.080
G18     61.4           51.5                7.6 +/-    0.34       9.4 +/-    0.34  0.040 / 0.100
G21     143.8          37.8                9.7 +/-    0.93      14.7 +/-    0.93  0.050 / 0.080
G24     59.9           27.6                7.1 +/-    0.56      13.0 +/-    0.56  0.050 / 0.090
G27     256.1          32.9                9.3 +/-    0.98      15.3 +/-    0.98  0.020 / 0.030
G32     240.2          64.1               12.4 +/-    0.96      13.6 +/-    0.96  0.030 / 0.040