PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-08:57:30
G02     202.6          29.3                7.0 +/-    2.07      12.5 +/-    2.07  0.060 / 0.100
G06     165.2          64.4                9.7 +/-    1.14      10.6 +/-    1.14  0.080 / 0.090
G12     305.2          12.6                3.8 +/-    2.00       9.9 +/-    2.00  0.150 / 0.230
G17     34.7           50.0                5.2 +/-    0.86       6.6 +/-    0.86  0.100 / 0.220
G19     343.4          68.2                6.1 +/-    0.81       6.5 +/-    0.81  0.030 / 0.040
G24     298.4          39.2                5.7 +/-    0.84       8.4 +/-    0.84  0.040 / 0.040
G28     97.5           35.3                7.9 +/-    0.72      12.5 +/-    0.72  0.050 / 0.130