PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-04:57:50
G08     267.9          18.2                9.9 +/-    2.32      22.8 +/-    2.32  0.120 / 0.240
G10     60.7           58.5                5.3 +/-    0.41       6.1 +/-    0.41  0.120 / 0.180
G11     311.8          17.0               -2.7 +/-   17.12      -6.4 +/-   17.12  0.050 / 0.060
G14     262.7          63.6                5.9 +/-    0.70       6.5 +/-    0.70  0.050 / 0.060
G18     312.7          31.2                6.3 +/-    3.89      10.8 +/-    3.89  0.160 / 0.320
G20     88.2           47.4                6.5 +/-    0.77       8.5 +/-    0.77  0.120 / 0.250
G21     154.9          16.5                5.2 +/-    2.78      12.5 +/-    2.78  0.090 / 0.240
G27     232.1          16.1                9.0 +/-    2.61      21.9 +/-    2.61  0.110 / 0.190
G31     176.7          31.9                7.4 +/-    1.92      12.4 +/-    1.92  0.030 / 0.040
G32     345.0          73.8                5.3 +/-    0.59       5.5 +/-    0.59  0.030 / 0.040