PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-18:28:10
G10     286.0          47.1               11.6 +/-    1.24      15.2 +/-    1.24  0.060 / 0.080
G15     47.8           34.1                9.3 +/-    0.33      15.0 +/-    0.33  0.100 / 0.090
G18     343.4          67.0               10.6 +/-    0.98      11.4 +/-    0.98  0.040 / 0.050
G20     65.3           24.5               10.2 +/-    0.89      20.1 +/-    0.89  0.050 / 0.050
G21     79.4           74.5               13.5 +/-    0.77      13.9 +/-    0.77  0.110 / 0.230
G24     106.9          23.1               13.1 +/-    1.70      26.8 +/-    1.70  0.110 / 0.240
G27     306.7          31.3               12.3 +/-    1.17      21.0 +/-    1.17  0.070 / 0.160
G29     166.2          10.0               14.7 +/-    1.38      41.0 +/-    1.38  0.090 / 0.180
G32     208.4          22.9               14.4 +/-    1.44      29.5 +/-    1.44  0.070 / 0.170