PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/29-22:57:40
G01     317.9          21.9                7.7 +/-    1.60      16.2 +/-    1.60  0.210 / 0.270
G08     257.4          12.3               11.2 +/-    4.13      29.7 +/-    4.13  0.200 / 0.190
G10     84.5           50.0                9.4 +/-    0.90      11.9 +/-    0.90  0.040 / 0.050
G11     302.5          22.5                7.9 +/-    1.21      16.3 +/-    1.21  0.050 / 0.060
G14     295.7          69.8                8.8 +/-    0.54       9.3 +/-    0.54  0.240 / 0.360
G18     302.2          42.7                8.7 +/-    1.80      12.2 +/-    1.80  0.230 / 0.400
G20     108.2          25.9                9.1 +/-    1.04      17.3 +/-    1.04  0.050 / 0.080
G31     173.9          45.6               11.6 +/-    0.88      15.5 +/-    0.88  0.070 / 0.080
G32     13.5           65.5                7.7 +/-    0.70       8.3 +/-    0.70  0.090 / 0.220