PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-01:58:00
G02     212.8          57.3                9.1 +/-    1.09      10.6 +/-    1.09  0.100 / 0.200
G06     91.8           81.5                7.5 +/-    0.59       7.6 +/-    0.59  0.080 / 0.210
G12     316.2          30.1                6.6 +/-    1.57      11.5 +/-    1.57  0.060 / 0.070
G17     55.0           33.2                4.9 +/-    1.06       8.0 +/-    1.06  0.050 / 0.060
G19     34.0           51.9                6.2 +/-    0.48       7.7 +/-    0.48  0.060 / 0.080
G24     267.8          42.7                6.5 +/-    1.05       9.0 +/-    1.05  0.080 / 0.090
G28     118.7          19.8                8.9 +/-    0.96      19.8 +/-    0.96  0.040 / 0.050