PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/31-12:57:30
G01     310.0          30.9                4.9 +/-    0.69       8.3 +/-    0.69  0.040 / 0.040
G10     102.3          42.7                5.8 +/-    0.56       8.1 +/-    0.56  0.060 / 0.050
G11     288.1          26.9                3.3 +/-    1.49       6.2 +/-    1.49  0.170 / 0.210
G14     340.2          68.8                3.1 +/-    0.36       3.3 +/-    0.36  0.170 / 0.220
G18     284.2          48.4               15.4 +/-    1.56      19.8 +/-    1.56  0.070 / 0.170
G22     309.3          26.6                3.3 +/-    1.70       6.1 +/-    1.70  0.080 / 0.170
G25     86.4           15.7                5.1 +/-    1.89      12.5 +/-    1.89  0.110 / 0.110
G31     166.5          62.6                7.0 +/-    0.36       7.8 +/-    0.36  0.080 / 0.110
G32     34.0           53.8                3.9 +/-    1.30       4.7 +/-    1.30  0.040 / 0.040