PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/30-02:27:40
G08     320.4          11.2               -3.2 +/-   30.76      -8.6 +/-   30.76  0.090 / 0.250
G10     301.5          52.7                8.3 +/-    0.70      10.2 +/-    0.70  0.080 / 0.280
G14     211.0          16.8               14.0 +/-    4.86      33.4 +/-    4.86  0.040 / 0.040
G15     45.9           27.6                4.6 +/-    4.02       8.5 +/-    4.02  0.040 / 0.050
G18     2.2            65.6              -26.4 +/-   59.19     -28.7 +/-   59.19  0.070 / 0.150
G20     74.4           14.5                5.1 +/-    1.92      12.8 +/-    1.92  0.070 / 0.140
G21     106.1          71.9                9.6 +/-    0.74      10.0 +/-    0.74  0.040 / 0.040
G24     95.2           27.8                8.3 +/-    1.97      15.2 +/-    1.97  0.030 / 0.040
G27     294.7          36.4               10.2 +/-    1.60      15.8 +/-    1.60  0.050 / 0.070
G32     212.6          34.7                5.3 +/-   14.78       8.5 +/-   14.78  0.060 / 0.080