PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/11-04:28:10
G02     221.4          66.4                5.3 +/-    0.94       5.7 +/-    0.94  0.190 / 0.330
G06     50.7           74.8                3.8 +/-    0.60       4.0 +/-    0.60  0.230 / 0.400
G12     319.2          38.8                0.5 +/-    0.68       0.8 +/-    0.68  0.030 / 0.020
G17     62.8           27.0                0.0 +/-    2.53       0.0 +/-    2.53  0.030 / 0.020
G19     44.1           46.4                1.9 +/-    1.11       2.5 +/-    1.11  0.070 / 0.070
G24     254.6          40.2                3.8 +/-    4.31       5.5 +/-    4.31  0.090 / 0.070
G28     125.1          12.5                4.3 +/-    2.74      11.3 +/-    2.74  0.050 / 0.100