PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/29-02:28:00
G10     298.7          51.8                7.5 +/-    0.88       9.3 +/-    0.88  0.040 / 0.050
G14     210.5          15.1               10.2 +/-    5.64      25.2 +/-    5.64  0.040 / 0.050
G15     46.2           29.3                5.9 +/-    1.16      10.4 +/-    1.16  0.040 / 0.060
G18     357.9          66.0                8.0 +/-    0.56       8.7 +/-    0.56  0.040 / 0.040
G20     73.1           15.6                5.0 +/-    2.03      12.3 +/-    2.03  0.200 / 0.660
G21     101.0          73.2                9.0 +/-    0.43       9.4 +/-    0.43  0.170 / 0.440
G24     97.3           27.1               10.2 +/-    1.69      18.9 +/-    1.69  0.070 / 0.140
G27     296.8          35.8                8.1 +/-    1.77      12.7 +/-    1.77  0.080 / 0.120
G32     211.7          32.9                8.4 +/-    0.88      13.8 +/-    0.88  0.080 / 0.090