PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-09:42:40
G01     224.8          15.5                5.3 +/-    2.26      13.1 +/-    2.26  0.090 / 0.160
G03     281.3          68.7                4.5 +/-    0.68       4.8 +/-    0.68  0.120 / 0.170
G14     87.2           25.5                2.9 +/-    1.69       5.6 +/-    1.69  0.040 / 0.040
G16     141.5          48.3                5.5 +/-    0.97       7.1 +/-    0.97  0.040 / 0.040
G22     206.9          67.9                5.0 +/-    0.51       5.4 +/-    0.51  0.200 / 0.260
G23     310.3          40.7                4.0 +/-    0.83       5.8 +/-    0.83  0.180 / 0.360
G26     89.5           53.6                4.9 +/-    0.69       6.0 +/-    0.69  0.040 / 0.110
G31     46.8           28.2                1.6 +/-    2.10       2.9 +/-    2.10  0.070 / 0.090