PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-00:27:50
G10     267.9          38.0               10.5 +/-    1.51      15.8 +/-    1.51  0.160 / 0.320
G13     42.0           18.9                6.8 +/-    2.59      15.3 +/-    2.59  0.220 / 0.310
G15     59.4           49.5                8.7 +/-    1.05      11.1 +/-    1.05  0.060 / 0.060
G16     280.1          11.1               11.1 +/-    1.77      30.3 +/-    1.77  0.090 / 0.080
G18     301.2          64.2                8.6 +/-    0.71       9.5 +/-    0.71  0.040 / 0.040
G20     55.9           32.8                6.5 +/-    1.24      10.8 +/-    1.24  0.040 / 0.030
G21     6.1            72.7                8.2 +/-    1.23       8.6 +/-    1.23  0.160 / 0.260
G24     120.6          14.5               11.1 +/-    1.55      28.1 +/-    1.55  0.180 / 0.260
G27     317.2          21.1               10.0 +/-    2.70      21.4 +/-    2.70  0.160 / 0.240
G29     167.2          27.6               11.4 +/-    1.45      21.0 +/-    1.45  0.150 / 0.160