PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-19:28:10
G01     319.1          19.2                7.9 +/-    1.93      17.6 +/-    1.93  0.040 / 0.050
G08     258.7          14.2               11.4 +/-    2.38      28.9 +/-    2.38  0.040 / 0.050
G10     79.1           51.9               25.2 +/-    1.54      31.1 +/-    1.54  0.120 / 0.400
G14     280.6          67.2               11.1 +/-    0.77      12.0 +/-    0.77  0.110 / 0.380
G20     105.5          27.4               10.0 +/-    1.32      18.5 +/-    1.32  0.040 / 0.040
G31     175.9          40.4               11.1 +/-    1.34      16.0 +/-    1.34  0.040 / 0.030
G32     8.5            67.7                9.1 +/-    0.48       9.7 +/-    0.48  0.070 / 0.080