PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/16-23:27:50
G08     267.6          17.1               11.5 +/-    0.87      27.3 +/-    0.87  0.170 / 0.280
G10     68.2           55.6                8.3 +/-    1.02       9.9 +/-    1.02  0.100 / 0.270
G11     310.8          17.5               -0.3 +/-   19.79      -0.8 +/-   19.79  0.040 / 0.050
G14     268.7          65.9                7.7 +/-    0.70       8.4 +/-    0.70  0.040 / 0.050
G18     310.9          34.7                8.6 +/-    1.44      13.6 +/-    1.44  0.070 / 0.120
G20     98.9           33.6                9.2 +/-    1.03      15.0 +/-    1.03  0.060 / 0.110
G21     155.8          13.6               10.0 +/-    1.87      25.7 +/-    1.87  0.200 / 0.280
G27     229.8          14.5               12.7 +/-    2.45      31.9 +/-    2.45  0.180 / 0.230
G31     176.5          34.3                9.0 +/-    1.67      14.4 +/-    1.67  0.030 / 0.030
G32     349.4          72.8                7.8 +/-    0.53       8.1 +/-    0.53  0.030 / 0.040