PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-02:42:40
G02     251.1          78.5                4.0 +/-    0.50       4.1 +/-    0.50  0.080 / 0.120
G05     170.3          18.3                5.5 +/-    2.63      12.5 +/-    2.63  0.070 / 0.120
G06     38.9           61.6                4.4 +/-    0.59       4.9 +/-    0.59  0.030 / 0.040
G12     320.8          51.2                3.2 +/-    1.39       4.0 +/-    1.39  0.040 / 0.040
G17     73.1           19.6                3.9 +/-    2.15       8.7 +/-    2.15  0.090 / 0.130
G19     58.6           37.5                4.4 +/-    1.00       6.6 +/-    1.00  0.110 / 0.150
G24     240.7          33.3                7.4 +/-    2.04      12.1 +/-    2.04  0.030 / 0.030
G25     316.8          15.8                2.0 +/-    1.20       4.8 +/-    1.20  0.040 / 0.030