PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/31-02:27:50
G08     265.3          18.1               10.8 +/-    0.95      24.8 +/-    0.95  0.160 / 0.380
G10     60.3           59.1                7.3 +/-    0.69       8.3 +/-    0.69  0.170 / 0.530
G11     310.1          19.0                9.5 +/-    2.80      21.4 +/-    2.80  0.130 / 0.280
G14     270.6          67.8                7.8 +/-    0.54       8.4 +/-    0.54  0.120 / 0.290
G18     91.6           36.8                7.8 +/-    0.37      12.0 +/-    0.37  0.030 / 0.030
G21     154.1          14.4                8.7 +/-    2.21      22.0 +/-    2.21  0.030 / 0.030
G24     40.2           11.2                7.5 +/-    1.90      20.3 +/-    1.90  0.020 / 0.030
G27     230.2          15.2               10.7 +/-    2.15      26.4 +/-    2.15  0.030 / 0.040
G31     179.2          29.6               10.8 +/-    1.03      19.1 +/-    1.03  0.130 / 0.210
G32     331.4          74.2                8.1 +/-    0.47       8.4 +/-    0.47  0.110 / 0.220