PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-01:42:50
G01     84.2           32.9                4.6 +/-    1.48       7.6 +/-    1.48  0.040 / 0.050
G07     129.8          41.3                6.4 +/-    0.75       9.1 +/-    0.75  0.030 / 0.060
G11     65.6           39.1                4.0 +/-    0.85       6.0 +/-    0.85  0.060 / 0.050
G13     289.6          36.7                3.3 +/-    1.70       5.1 +/-    1.70  0.060 / 0.040
G15     311.1          12.6                3.4 +/-    1.94       9.0 +/-    1.94  0.050 / 0.100
G17     219.1          57.3                4.9 +/-    1.19       5.7 +/-    1.19  0.070 / 0.080
G19     217.1          32.2                5.2 +/-    1.76       8.7 +/-    1.76  0.050 / 0.090
G28     0.4            61.1                3.0 +/-    0.55       3.3 +/-    0.55  0.050 / 0.080
G30     120.7          67.5                5.6 +/-    0.79       6.0 +/-    0.79  0.030 / 0.050