PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-22:12:50
G10     266.0          36.8               15.8 +/-    0.94      24.2 +/-    0.94  0.190 / 0.340
G13     43.0           20.5                9.1 +/-    1.63      19.9 +/-    1.63  0.160 / 0.340
G15     60.4           49.7               13.2 +/-    0.93      16.7 +/-    0.93  0.150 / 0.750
G16     283.1          11.5               14.1 +/-    2.61      38.1 +/-    2.61  0.200 / 0.560
G18     299.0          64.1               12.6 +/-    0.95      13.8 +/-    0.95  0.140 / 0.250
G20     54.2           34.9               10.6 +/-    1.69      16.8 +/-    1.69  0.140 / 0.330
G21     4.5            72.0               15.0 +/-    0.77      15.6 +/-    0.77  0.080 / 0.080
G24     122.1          13.4               17.8 +/-    1.35      45.9 +/-    1.35  0.060 / 0.090
G27     318.1          19.7               12.5 +/-    1.72      27.6 +/-    1.72  0.040 / 0.050
G29     166.3          28.2               18.2 +/-    1.14      33.2 +/-    1.14  0.040 / 0.040