PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/28-09:42:40
G02     204.9          42.8                7.7 +/-    0.49      10.8 +/-    0.49  0.080 / 0.140
G06     161.2          73.3                6.8 +/-    0.42       7.1 +/-    0.42  0.080 / 0.170
G12     310.9          19.2                3.4 +/-    1.69       7.7 +/-    1.69  0.070 / 0.080
G17     43.4           43.2                4.0 +/-    1.62       5.5 +/-    1.62  0.070 / 0.080
G19     17.2           60.1                4.6 +/-    0.83       5.2 +/-    0.83  0.190 / 0.180
G24     291.7          40.0                5.1 +/-    8.25       7.4 +/-    8.25  0.110 / 0.180
G28     109.2          26.0                6.6 +/-    1.24      12.6 +/-    1.24  0.050 / 0.050