PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/16-02:42:30
G02     19.5           66.5                7.3 +/-    0.41       7.9 +/-    0.41  0.040 / 0.020
G05     154.3          48.8                9.5 +/-    1.19      12.2 +/-    1.19  0.030 / 0.010
G06     46.5           27.8                5.7 +/-    1.81      10.4 +/-    1.81  0.040 / 0.020
G12     254.0          79.6                7.8 +/-    0.91       8.0 +/-    0.91  0.040 / 0.020
G19     87.4           19.5                6.3 +/-    1.86      14.0 +/-    1.86  0.190 / 0.140
G24     218.4          12.9               10.3 +/-    4.90      26.9 +/-    4.90  0.110 / 0.110
G25     312.5          40.9                7.8 +/-    0.91      11.2 +/-    0.91  0.070 / 0.070
G29     296.5          17.3                8.3 +/-    1.29      19.4 +/-    1.29  0.100 / 0.170