PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/14-09:28:10
G05     49.0           16.1                2.9 +/-    2.52       7.1 +/-    2.52  0.140 / 0.280
G10     236.3          13.6                3.8 +/-    2.09       9.8 +/-    2.09  0.170 / 0.310
G13     74.6           35.8                8.6 +/-    1.09      13.4 +/-    1.09  0.070 / 0.090
G15     122.7          52.8                8.3 +/-    0.62      10.1 +/-    0.62  0.050 / 0.090
G20     248.7          37.6                7.0 +/-    1.43      10.7 +/-    1.43  0.040 / 0.050
G21     318.7          51.3                5.4 +/-    0.75       6.7 +/-    0.75  0.040 / 0.050
G26     292.8          18.2                3.7 +/-    1.13       8.6 +/-    1.13  0.030 / 0.030
G29     151.5          67.4                8.4 +/-    0.70       9.0 +/-    0.70  0.030 / 0.040