PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/12-02:58:00
G02     18.9           66.9                7.0 +/-    0.37       7.6 +/-    0.37  0.030 / 0.030
G05     154.7          48.2                8.7 +/-    1.32      11.2 +/-    1.32  0.040 / 0.030
G06     46.2           28.5                5.0 +/-    1.88       9.1 +/-    1.88  0.040 / 0.050
G12     258.6          79.5                7.1 +/-    1.07       7.2 +/-    1.07  0.050 / 0.050
G19     86.9           19.8                5.8 +/-    1.75      12.9 +/-    1.75  0.060 / 0.080
G24     218.8          13.4                7.8 +/-    4.85      20.2 +/-    4.85  0.050 / 0.070
G25     312.8          40.3                7.3 +/-    0.75      10.6 +/-    0.75  0.160 / 0.420
G29     296.1          17.0                7.7 +/-    1.86      18.3 +/-    1.86  0.160 / 0.490