PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/20-02:27:40
G02     253.7          78.9                4.0 +/-    0.45       4.0 +/-    0.45  0.090 / 0.120
G05     170.0          18.9                6.8 +/-    2.49      15.3 +/-    2.49  0.110 / 0.090
G06     38.8           60.7                4.7 +/-    0.38       5.2 +/-    0.38  0.320 / 0.380
G12     320.8          51.8                3.3 +/-    1.30       4.1 +/-    1.30  0.170 / 0.240
G17     73.6           19.3                3.0 +/-    2.30       6.8 +/-    2.30  0.070 / 0.060
G19     59.2           37.1                3.4 +/-    1.16       5.2 +/-    1.16  0.060 / 0.070
G24     240.2          32.9                6.3 +/-    1.35      10.4 +/-    1.35  0.040 / 0.040
G25     316.8          16.2                2.1 +/-    1.43       5.1 +/-    1.43  0.040 / 0.040