PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/13-16:58:10
G08     302.9          22.2                5.1 +/-    1.28      10.7 +/-    1.28  0.050 / 0.070
G10     344.3          61.6                4.9 +/-    0.58       5.5 +/-    0.58  0.050 / 0.060
G14     221.0          36.6                8.2 +/-    1.17      12.7 +/-    1.17  0.030 / 0.030
G20     47.8           57.9                6.2 +/-    0.47       7.2 +/-    0.47  0.040 / 0.040
G21     139.1          48.5                8.7 +/-    0.82      11.2 +/-    0.82  0.050 / 0.130
G24     63.4           26.8                6.0 +/-    0.77      11.3 +/-    0.77  0.070 / 0.110
G27     270.8          35.8                8.5 +/-    0.96      13.2 +/-    0.96  0.060 / 0.090
G32     228.4          56.8                8.6 +/-    2.02      10.1 +/-    2.02  0.060 / 0.090