PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/23-01:43:10
G01     313.2          27.5                7.6 +/-    1.97      14.0 +/-    1.97  0.110 / 0.150
G10     96.0           46.8                6.9 +/-    1.01       9.1 +/-    1.01  0.140 / 0.160
G11     289.8          28.4                6.5 +/-    2.21      11.8 +/-    2.21  0.080 / 0.120
G14     339.9          69.9                7.8 +/-    0.67       8.2 +/-    0.67  0.100 / 0.190
G18     111.3          20.7                7.4 +/-    0.93      16.1 +/-    0.93  0.030 / 0.030
G22     306.0          18.7                7.0 +/-    1.06      15.9 +/-    1.06  0.030 / 0.040
G25     87.6           13.5                7.6 +/-    1.27      19.5 +/-    1.27  0.100 / 0.200
G31     175.3          53.5                9.2 +/-    1.33      11.1 +/-    1.33  0.110 / 0.190
G32     21.5           60.8                5.6 +/-    0.36       6.3 +/-    0.36  0.040 / 0.040