PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-22:58:10
G08     307.1          20.4                8.3 +/-    1.92      18.0 +/-    1.92  0.040 / 0.040
G10     335.8          60.6                9.2 +/-    0.76      10.4 +/-    0.76  0.040 / 0.050
G14     219.0          31.6               13.2 +/-    2.17      22.3 +/-    2.17  0.090 / 0.190
G15     47.1           14.0                9.1 +/-    2.40      23.1 +/-    2.40  0.110 / 0.190
G20     40.7           59.7               10.9 +/-    1.02      12.4 +/-    1.02  0.070 / 0.060
G21     136.0          55.5               13.3 +/-    0.32      15.7 +/-    0.32  0.060 / 0.070
G24     69.5           28.7               10.0 +/-    1.32      17.9 +/-    1.32  0.030 / 0.030
G27     273.9          36.9               11.9 +/-    2.35      18.2 +/-    2.35  0.040 / 0.030
G32     224.7          55.2               13.2 +/-    2.20      15.7 +/-    2.20  0.120 / 0.350