PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-21:58:00
G01     319.5          17.9                8.5 +/-    1.67      19.7 +/-    1.67  0.220 / 0.430
G08     261.2          14.7                8.7 +/-    2.45      21.8 +/-    2.45  0.240 / 0.400
G10     77.3           52.7                9.7 +/-    0.77      11.8 +/-    0.77  0.230 / 0.170
G11     307.0          20.0                7.6 +/-    1.15      16.7 +/-    1.15  0.120 / 0.180
G14     280.8          67.9                9.5 +/-    0.57      10.2 +/-    0.57  0.040 / 0.050
G20     104.2          29.1               11.4 +/-    0.62      20.3 +/-    0.62  0.030 / 0.050
G27     225.7          10.7               11.0 +/-    6.41      30.3 +/-    6.41  0.160 / 0.340
G31     175.4          40.0               11.3 +/-    1.41      16.4 +/-    1.41  0.140 / 0.290
G32     4.8            68.9                8.6 +/-    0.31       9.2 +/-    0.31  0.040 / 0.070