PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-19:27:40
G01     317.2          23.5                7.6 +/-    3.32      15.4 +/-    3.32  0.140 / 0.330
G08     254.1          11.6                8.6 +/-    6.07      23.2 +/-    6.07  0.160 / 0.400
G10     86.4           49.0                8.5 +/-    0.80      10.8 +/-    0.80  0.040 / 0.050
G11     302.6          22.0                7.2 +/-    2.25      15.1 +/-    2.25  0.030 / 0.060
G14     294.1          68.9                8.8 +/-    1.34       9.4 +/-    1.34  0.030 / 0.040
G20     109.6          23.7               10.5 +/-    1.01      21.1 +/-    1.01  0.030 / 0.040
G22     302.7          11.7                7.5 +/-    6.83      20.1 +/-    6.83  0.210 / 0.550
G31     174.7          46.0               10.6 +/-    1.25      14.1 +/-    1.25  0.170 / 0.430
G32     17.2           63.9                7.8 +/-    0.61       8.5 +/-    0.61  0.040 / 0.060