PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/16-17:28:00
G01     319.3          18.7                6.2 +/-    1.96      14.0 +/-    1.96  0.360 / 0.340
G08     258.6          14.7                6.9 +/-    1.89      17.3 +/-    1.89  0.290 / 0.350
G10     77.5           52.4                7.1 +/-    0.93       8.8 +/-    0.93  0.040 / 0.050
G11     308.5          18.5                5.5 +/-    2.16      12.6 +/-    2.16  0.040 / 0.050
G14     279.5          67.4                7.7 +/-    0.45       8.3 +/-    0.45  0.040 / 0.040
G20     104.9          27.4                8.4 +/-    1.08      15.5 +/-    1.08  0.040 / 0.030
G27     225.4          10.7                6.8 +/-   17.82      18.6 +/-   17.82  0.120 / 0.280
G31     177.0          38.5                8.7 +/-    0.77      13.0 +/-    0.77  0.120 / 0.350
G32     7.2            68.3                6.0 +/-    0.42       6.4 +/-    0.42  0.050 / 0.070