PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-02:27:40
G02     221.2          67.7                7.6 +/-    0.91       8.1 +/-    0.91  0.040 / 0.070
G06     48.1           70.2                6.4 +/-    0.34       6.8 +/-    0.34  0.030 / 0.070
G12     319.9          40.4                6.0 +/-    0.93       8.7 +/-    0.93  0.040 / 0.090
G17     60.2           31.8                3.8 +/-    0.94       6.5 +/-    0.94  0.040 / 0.090
G19     45.5           45.8                4.3 +/-    0.47       5.7 +/-    0.47  0.040 / 0.050
G24     258.6          39.9                8.0 +/-    1.73      11.7 +/-    1.73  0.040 / 0.060