PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/18-03:12:50
G08     268.9          19.5                6.4 +/-    2.30      14.3 +/-    2.30  0.090 / 0.430
G10     52.9           60.4                5.1 +/-    0.97       5.7 +/-    0.97  0.080 / 0.310
G11     312.3          16.9                4.9 +/-    4.23      11.7 +/-    4.23  0.080 / 0.140
G14     262.0          65.7                5.7 +/-    0.52       6.2 +/-    0.52  0.070 / 0.120
G18     87.7           39.5                6.1 +/-    1.17       9.0 +/-    1.17  0.030 / 0.040
G21     153.5          18.3                7.1 +/-    2.53      16.4 +/-    2.53  0.030 / 0.030
G24     41.8           13.9                3.5 +/-    1.17       9.0 +/-    1.17  0.050 / 0.060
G27     233.0          17.7               10.5 +/-    2.54      24.3 +/-    2.54  0.040 / 0.050
G31     179.5          26.2                8.1 +/-    1.27      15.5 +/-    1.27  0.140 / 0.310
G32     318.9          75.2                6.0 +/-    0.76       6.2 +/-    0.76  0.110 / 0.280