PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/20-01:42:50
G01     318.5          20.4                5.5 +/-    2.53      11.9 +/-    2.53  0.140 / 0.300
G08     260.7          12.9                8.6 +/-    4.18      22.4 +/-    4.18  0.130 / 0.290
G10     82.5           50.9                7.5 +/-    0.61       9.4 +/-    0.61  0.040 / 0.060
G11     302.8          22.7                6.3 +/-    1.87      13.0 +/-    1.87  0.040 / 0.060
G14     295.6          70.3                7.5 +/-    0.65       8.0 +/-    0.65  0.220 / 0.430
G18     303.4          41.9                8.3 +/-    0.83      11.7 +/-    0.83  0.220 / 0.430
G20     106.7          27.9                6.8 +/-    1.19      12.5 +/-    1.19  0.080 / 0.270
G22     301.4          10.2               -2.4 +/-    2.23      -6.6 +/-    2.23  0.070 / 0.220
G31     174.0          44.4                9.6 +/-    0.97      13.1 +/-    0.97  0.070 / 0.100
G32     9.0            67.0                5.5 +/-    0.66       5.9 +/-    0.66  0.050 / 0.080