PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/09-14:13:00
G02     229.8          71.4                7.9 +/-    1.05       8.3 +/-    1.05  0.030 / 0.070
G05     176.0          10.0               -8.9 +/-   16.46     -24.9 +/-   16.46  0.040 / 0.060
G06     42.7           65.4                7.5 +/-    0.20       8.2 +/-    0.20  0.030 / 0.050
G12     321.2          46.4                7.6 +/-    1.64      10.1 +/-    1.64  0.030 / 0.040
G17     68.6           23.1                6.8 +/-    0.57      13.9 +/-    0.57  0.140 / 0.450
G19     54.1           40.1                7.3 +/-    0.60      10.6 +/-    0.60  0.150 / 0.420
G24     252.7          37.5                8.2 +/-    1.17      12.4 +/-    1.17  0.060 / 0.110
G25     315.9          10.3              -15.4 +/-   23.40     -42.7 +/-   23.40  0.050 / 0.120