PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/22-04:43:10
G08     277.8          22.2                5.9 +/-    2.02      12.3 +/-    2.02  0.030 / 0.030
G10     34.1           62.6                4.2 +/-    0.80       4.7 +/-    0.80  0.040 / 0.030
G11     316.7          11.2               -3.3 +/-   15.45      -8.9 +/-   15.45  0.100 / 0.160
G14     246.0          59.4                6.7 +/-    0.73       7.7 +/-    0.73  0.070 / 0.160
G18     77.5           45.6              -42.6 +/-   61.59     -56.9 +/-   61.59  0.110 / 0.190
G21     151.3          27.5                6.7 +/-    1.68      12.4 +/-    1.68  0.090 / 0.170
G24     46.8           19.8                4.4 +/-    0.99       9.7 +/-    0.99  0.060 / 0.130
G27     240.1          23.6                3.5 +/-    2.77       7.0 +/-    2.77  0.070 / 0.140
G31     180.6          18.3                4.1 +/-    1.45       9.4 +/-    1.45  0.070 / 0.160
G32     284.7          75.1                5.6 +/-    0.80       5.8 +/-    0.80  0.080 / 0.180