PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-19:12:40
G01     319.6          17.8                8.7 +/-    2.77      20.1 +/-    2.77  0.210 / 0.410
G08     260.0          15.0                8.5 +/-    2.15      21.1 +/-    2.15  0.240 / 0.400
G10     76.5           52.8                9.9 +/-    1.67      12.1 +/-    1.67  0.040 / 0.050
G11     308.3          18.8                7.5 +/-    1.41      16.9 +/-    1.41  0.030 / 0.040
G14     276.2          66.3               12.0 +/-    0.57      12.9 +/-    0.57  0.140 / 0.220
G20     104.1          28.5               11.2 +/-    0.93      20.2 +/-    0.93  0.160 / 0.260
G27     225.9          11.1                8.0 +/-   12.80      21.8 +/-   12.80  0.060 / 0.070
G31     176.4          38.5                9.9 +/-    1.39      14.7 +/-    1.39  0.070 / 0.060
G32     5.3            68.9                9.4 +/-    0.36       9.9 +/-    0.36  0.040 / 0.030