PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/29-12:13:00
G01     46.6           22.4                2.3 +/-    0.76       4.9 +/-    0.76  0.040 / 0.090
G06     177.9          28.7                8.3 +/-    2.04      14.9 +/-    2.04  0.050 / 0.090
G13     248.0          27.8                7.1 +/-    2.30      13.0 +/-    2.30  0.250 / 0.210
G15     280.3          14.9                3.9 +/-    2.74       9.6 +/-    2.74  0.110 / 0.240
G17     346.3          75.8                6.1 +/-    0.66       6.3 +/-    0.66  0.160 / 0.360
G19     257.6          65.5                4.3 +/-    1.06       4.6 +/-    1.06  0.070 / 0.120
G24     319.1          10.4              -14.9 +/-   18.78     -41.1 +/-   18.78  0.070 / 0.120
G28     59.9           50.6                2.9 +/-    1.32       3.7 +/-    1.32  0.020 / 0.030
G30     151.7          37.7                6.1 +/-    1.35       9.2 +/-    1.35  0.030 / 0.030