PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-20:27:50
G10     272.9          42.8                9.5 +/-    0.87      13.2 +/-    0.87  0.110 / 0.160
G13     39.5           13.5                8.3 +/-    1.07      21.5 +/-    1.07  0.110 / 0.130
G15     54.8           45.5                9.1 +/-    1.03      12.2 +/-    1.03  0.040 / 0.050
G16     274.2          11.0                9.2 +/-    3.28      25.1 +/-    3.28  0.050 / 0.050
G20     309.4          62.6                9.0 +/-    0.95      10.0 +/-    0.95  0.100 / 0.290
G21     13.8           74.0               11.0 +/-    0.70      11.4 +/-    0.70  0.100 / 0.290
G24     118.0          16.9               10.2 +/-    1.92      24.3 +/-    1.92  0.140 / 0.900
G27     316.6          22.2                8.0 +/-    1.59      16.8 +/-    1.59  0.130 / 0.570
G29     167.8          26.9               11.7 +/-    1.19      21.9 +/-    1.19  0.040 / 0.060
G32     204.6          13.6               11.3 +/-    1.58      29.0 +/-    1.58  0.030 / 0.050