PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-00:27:40
G05     48.8           18.8                8.1 +/-    1.97      18.4 +/-    1.97  0.210 / 0.340
G10     237.0          12.2               15.6 +/-    5.95      41.5 +/-    5.95  0.150 / 0.270
G13     75.8           37.3               10.8 +/-    1.48      16.4 +/-    1.48  0.180 / 0.290
G15     127.0          52.4               12.8 +/-    1.09      15.7 +/-    1.09  0.220 / 0.220
G16     314.4          11.9                7.0 +/-    7.91      18.6 +/-    7.91  0.110 / 0.290
G18     246.0          41.6                9.9 +/-   23.71      14.0 +/-   23.71  0.120 / 0.300
G20     30.8           63.9                9.5 +/-    1.56      10.5 +/-    1.56  0.120 / 0.150
G26     287.8          20.0                7.4 +/-    5.63      16.4 +/-    5.63  0.090 / 0.150
G29     156.1          69.1               11.6 +/-    1.14      12.4 +/-    1.14  0.050 / 0.030