PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/16-02:57:30
G08     279.6          22.6               11.3 +/-    0.77      23.3 +/-    0.77  0.040 / 0.020
G10     30.4           62.8                7.5 +/-    0.64       8.3 +/-    0.64  0.040 / 0.020
G14     243.5          58.0               10.6 +/-    1.62      12.3 +/-    1.62  0.070 / 0.110
G18     76.2           45.9                8.0 +/-    0.43      10.7 +/-    0.43  0.080 / 0.140
G21     150.7          28.7               10.7 +/-    1.45      19.2 +/-    1.45  0.170 / 0.100
G24     48.0           20.8                7.7 +/-    2.76      16.6 +/-    2.76  0.310 / 0.140
G27     241.6          24.7               11.7 +/-    2.54      23.0 +/-    2.54  0.030 / 0.030
G31     181.6          16.0               11.4 +/-    1.79      27.6 +/-    1.79  0.040 / 0.030
G32     275.5          73.8                9.6 +/-    0.58       9.9 +/-    0.58  0.110 / 0.220