PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-19:12:30
G01     319.0          19.4               11.3 +/-    1.80      25.3 +/-    1.80  0.040 / 0.050
G08     258.4          14.1               12.6 +/-    1.80      32.1 +/-    1.80  0.040 / 0.040
G10     79.3           51.8               10.0 +/-    1.41      12.4 +/-    1.41  0.160 / 0.430
G11     306.9          19.7                9.8 +/-    1.41      21.6 +/-    1.41  0.150 / 0.450
G14     280.7          67.1               11.6 +/-    0.94      12.5 +/-    0.94  0.030 / 0.030
G20     105.7          27.2               10.7 +/-    1.39      20.0 +/-    1.39  0.040 / 0.030
G31     176.0          40.5               11.2 +/-    1.44      16.1 +/-    1.44  0.060 / 0.070
G32     8.9            67.6                9.7 +/-    0.55      10.4 +/-    0.55  0.050 / 0.070