PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-08:43:10
G08     263.4          16.5                4.3 +/-   13.09      10.4 +/-   13.09  0.200 / 0.310
G10     70.2           55.4                0.7 +/-    6.14       0.9 +/-    6.14  0.240 / 0.360
G11     308.0          20.2                2.1 +/-    6.44       4.5 +/-    6.44  0.030 / 0.040
G14     278.3          69.2                0.5 +/-    5.86       0.5 +/-    5.86  0.030 / 0.040
G18     309.2          37.1                1.8 +/-    6.45       2.8 +/-    6.45  0.220 / 0.420
G20     99.8           33.5                2.1 +/-    6.08       3.5 +/-    6.08  0.230 / 0.480
G21     155.3          10.3                2.3 +/-    8.30       6.3 +/-    8.30  0.040 / 0.060
G27     229.8          13.6                1.9 +/-   15.10       5.0 +/-   15.10  0.040 / 0.050
G31     177.5          34.6                4.6 +/-    5.78       7.3 +/-    5.78  0.200 / 0.380
G32     337.3          73.1               -0.2 +/-   10.23      -0.2 +/-   10.23  0.200 / 0.500