PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-06:43:10
G01     314.3          26.4                4.3 +/-    1.00       8.1 +/-    1.00  0.040 / 0.040
G10     94.9           46.6                4.6 +/-    0.77       6.1 +/-    0.77  0.040 / 0.050
G11     292.7          26.7                2.1 +/-    1.04       3.9 +/-    1.04  0.080 / 0.180
G14     321.3          70.0                4.7 +/-    0.68       5.0 +/-    0.68  0.080 / 0.180
G18     292.6          46.5                3.6 +/-    3.75       4.7 +/-    3.75  0.080 / 0.130
G20     113.0          24.3                5.2 +/-    1.24      10.2 +/-    1.24  0.140 / 0.170
G22     306.4          20.1                2.9 +/-    1.81       6.4 +/-    1.81  0.130 / 0.230
G25     91.6           13.1                4.9 +/-    1.98      12.8 +/-    1.98  0.110 / 0.230
G31     169.7          56.1                6.7 +/-    0.93       7.9 +/-    0.93  0.090 / 0.070
G32     27.4           58.1                4.9 +/-    1.11       5.6 +/-    1.11  0.070 / 0.090