PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-21:57:50
G01     319.5          17.9                8.3 +/-    0.94      19.2 +/-    0.94  0.130 / 0.330
G08     261.2          14.7               10.2 +/-    2.37      25.4 +/-    2.37  0.200 / 0.260
G10     77.3           52.7               10.2 +/-    1.33      12.5 +/-    1.33  0.130 / 0.200
G11     307.0          20.0                9.7 +/-    2.20      21.2 +/-    2.20  0.120 / 0.190
G14     280.8          67.9               10.6 +/-    0.63      11.3 +/-    0.63  0.040 / 0.050
G20     104.2          29.1               11.2 +/-    0.87      20.1 +/-    0.87  0.040 / 0.060
G27     225.7          10.7               13.0 +/-    3.70      35.6 +/-    3.70  0.150 / 0.310
G31     175.4          40.0               13.7 +/-    1.34      20.0 +/-    1.34  0.190 / 0.300
G32     4.8            68.9               10.1 +/-    0.48      10.7 +/-    0.48  0.050 / 0.060