PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-20:13:00
G01     42.8           18.8               10.4 +/-    3.53      23.5 +/-    3.53  0.070 / 0.130
G06     176.8          33.0               15.5 +/-    2.67      25.5 +/-    2.67  0.070 / 0.130
G13     240.1          25.1               13.8 +/-    1.58      26.8 +/-    1.58  0.190 / 0.250
G15     273.7          13.6               10.7 +/-    1.83      27.6 +/-    1.83  0.210 / 0.320
G17     352.6          73.6               14.4 +/-    0.49      14.9 +/-    0.49  0.040 / 0.060
G19     266.2          67.5               13.7 +/-    0.74      14.7 +/-    0.74  0.050 / 0.050
G24     317.3          16.5                8.7 +/-    5.68      20.8 +/-    5.68  0.110 / 0.220
G28     60.7           52.1               12.6 +/-    0.66      15.5 +/-    0.66  0.090 / 0.350
G30     152.8          29.4               15.2 +/-    1.04      26.9 +/-    1.04  0.060 / 0.080