PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/06-08:27:50
G01     114.4          21.1                5.9 +/-    1.17      12.6 +/-    1.17  0.030 / 0.030
G07     94.2           62.7                4.3 +/-    0.81       4.8 +/-    0.81  0.050 / 0.030
G08     42.7           24.8                2.2 +/-    1.21       4.3 +/-    1.21  0.030 / 0.030
G09     172.4          15.7                3.8 +/-    1.76       9.4 +/-    1.76  0.030 / 0.040
G11     97.7           41.6                6.3 +/-    0.57       8.9 +/-    0.57  0.090 / 0.190
G13     314.7          23.8                3.3 +/-    1.40       6.7 +/-    1.40  0.090 / 0.210
G17     202.3          31.9                4.8 +/-    1.73       8.1 +/-    1.73  0.100 / 0.190
G18     86.8           22.4                3.5 +/-    0.66       7.2 +/-    0.66  0.090 / 0.160
G28     300.6          58.6                3.5 +/-    0.59       4.1 +/-    0.59  0.180 / 0.230
G30     352.6          71.9                4.4 +/-    0.86       4.6 +/-    0.86  0.160 / 0.230