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               10.0 +/-    2.14      24.5 +/-    2.14  0.250 / 0.530
G10     74.3           53.8                7.7 +/-    0.55       9.3 +/-    0.55  0.140 / 0.520
G11     308.1          19.5                5.9 +/-    1.57      13.2 +/-    1.57  0.040 / 0.040
G14     277.6          67.7                7.7 +/-    0.51       8.3 +/-    0.51  0.040 / 0.050
G18     308.3          37.7                6.8 +/-    1.80      10.3 +/-    1.80  0.060 / 0.120
G20     102.3          31.0                7.1 +/-    0.83      12.2 +/-    0.83  0.050 / 0.100
G21     156.2          10.1               12.3 +/-    3.32      34.1 +/-    3.32  0.150 / 0.320
G27     227.1          12.0               10.7 +/-    4.06      28.7 +/-    4.06  0.120 / 0.340
G31     175.6          38.2                9.9 +/-    1.13      14.8 +/-    1.13  0.280 / 0.430
G32     359.4          70.4                6.6 +/-    1.11       7.0 +/-    1.11  0.180 / 0.460