PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-18:57:50
G10     293.7          50.1                9.8 +/-    2.91      12.3 +/-    2.91  0.070 / 0.070
G14     209.7          10.8               -7.9 +/-    7.31     -21.6 +/-    7.31  0.070 / 0.070
G15     46.3           29.1                9.3 +/-    1.24      16.7 +/-    1.24  0.030 / 0.030
G18     356.8          66.3               10.0 +/-    0.34      10.8 +/-    0.34  0.030 / 0.030
G20     69.5           20.6                9.3 +/-    1.76      20.1 +/-    1.76  0.110 / 0.220
G21     97.4           71.8               11.2 +/-    0.88      11.7 +/-    0.88  0.080 / 0.170
G24     101.1          25.7               12.2 +/-    1.41      23.4 +/-    1.41  0.080 / 0.100
G27     301.1          34.2               10.0 +/-    1.92      16.1 +/-    1.92  0.080 / 0.100
G32     210.4          28.2               13.1 +/-    1.68      23.8 +/-    1.68  0.140 / 0.130