PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-19:12:50
G01     320.5          14.7                6.8 +/-    2.62      17.1 +/-    2.62  0.220 / 0.390
G08     263.5          16.7               12.5 +/-    2.63      29.8 +/-    2.63  0.190 / 0.400
G10     70.6           54.7                8.1 +/-    0.37       9.7 +/-    0.37  0.050 / 0.060
G11     311.1          16.8                7.4 +/-    3.94      17.6 +/-    3.94  0.040 / 0.060
G14     267.9          64.5                9.4 +/-    0.78      10.3 +/-    0.78  0.140 / 0.390
G20     100.8          31.2               10.2 +/-    1.20      17.4 +/-    1.20  0.180 / 0.430
G21     155.7          11.5                9.7 +/-    2.62      26.1 +/-    2.62  0.030 / 0.040
G27     228.6          13.6               12.7 +/-    3.05      32.7 +/-    3.05  0.030 / 0.040
G31     177.2          34.6               11.2 +/-    1.14      17.9 +/-    1.14  0.170 / 0.440
G32     356.7          71.5                9.9 +/-    0.73      10.4 +/-    0.73  0.180 / 0.320