PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-04:27:40
G02     221.9          68.6                4.7 +/-    0.82       5.1 +/-    0.82  0.040 / 0.060
G06     47.8           70.9                2.6 +/-    0.60       2.7 +/-    0.60  0.040 / 0.050
G12     319.9          40.5                2.3 +/-    0.94       3.4 +/-    0.94  0.050 / 0.080
G17     61.6           30.2                2.7 +/-    0.62       4.6 +/-    0.62  0.080 / 0.080
G19     46.7           45.0                2.5 +/-    0.66       3.4 +/-    0.66  0.030 / 0.020
G24     258.3          39.7                3.9 +/-    2.70       5.7 +/-    2.70  0.030 / 0.020