PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/18-23:27:50
G08     264.0          15.5               10.3 +/-    1.52      25.3 +/-    1.52  0.140 / 0.520
G10     74.3           53.8                8.4 +/-    0.42      10.1 +/-    0.42  0.120 / 0.330
G11     308.1          19.5                9.3 +/-    1.82      20.8 +/-    1.82  0.190 / 0.530
G14     277.6          67.7                7.9 +/-    0.78       8.5 +/-    0.78  0.170 / 0.390
G18     308.3          37.7                8.8 +/-    1.96      13.3 +/-    1.96  0.050 / 0.070
G20     102.3          31.0                9.6 +/-    0.66      16.5 +/-    0.66  0.050 / 0.070
G21     156.2          10.1               10.8 +/-    1.14      30.2 +/-    1.14  0.190 / 0.400
G27     227.1          12.0               10.6 +/-    4.56      28.2 +/-    4.56  0.190 / 0.400
G31     175.6          38.2               10.8 +/-    1.53      16.2 +/-    1.53  0.070 / 0.110
G32     359.4          70.4                7.8 +/-    0.60       8.3 +/-    0.60  0.070 / 0.090