PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/18-20:57:40
G08     274.4          20.3                7.0 +/-    1.77      15.4 +/-    1.77  0.350 / 0.450
G10     52.8           59.0                8.8 +/-    1.01      10.1 +/-    1.01  0.490 / 0.240
G11     316.7          11.4               -2.2 +/-   21.23      -6.0 +/-   21.23  0.040 / 0.040
G14     251.0          59.1               11.0 +/-    1.22      12.6 +/-    1.22  0.040 / 0.070
G20     90.8           38.6                9.6 +/-    1.15      14.4 +/-    1.15  0.120 / 0.210
G21     154.1          21.6               10.2 +/-    1.03      21.5 +/-    1.03  0.130 / 0.270
G24     43.1           15.1                6.9 +/-    1.39      17.2 +/-    1.39  0.180 / 0.320
G27     236.2          20.3                9.5 +/-    1.75      20.8 +/-    1.75  0.170 / 0.260
G31     178.7          25.0               10.3 +/-    1.57      20.2 +/-    1.57  0.130 / 0.290
G32     320.2          76.5               10.2 +/-    0.65      10.4 +/-    0.65  0.300 / 0.170