PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/16-05:27:50
G01     119.1          17.7                5.3 +/-    0.72      12.2 +/-    0.72  0.030 / 0.040
G07     83.4           65.2                5.4 +/-    0.45       5.9 +/-    0.45  0.030 / 0.040
G08     44.1           29.1                1.8 +/-    0.98       3.2 +/-    0.98  0.040 / 0.040
G09     174.6          23.1                7.0 +/-    1.23      14.3 +/-    1.23  0.040 / 0.030
G11     104.6          40.1                6.2 +/-    0.75       9.0 +/-    0.75  0.140 / 0.280
G13     317.5          19.8                4.0 +/-    1.60       8.9 +/-    1.60  0.140 / 0.240
G17     200.6          26.8                7.4 +/-    2.43      13.8 +/-    2.43  0.100 / 0.160
G18     91.5           20.6                5.2 +/-    0.85      11.4 +/-    0.85  0.110 / 0.160
G28     289.9          56.3                5.5 +/-    0.82       6.5 +/-    0.82  0.120 / 0.400
G30     342.9          67.4                3.8 +/-    0.52       4.1 +/-    0.52  0.110 / 0.370