PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-20:27:50
G01     43.2           19.3                9.7 +/-    0.98      21.7 +/-    0.98  0.040 / 0.070
G06     177.1          32.2               13.5 +/-    1.88      22.6 +/-    1.88  0.040 / 0.060
G13     240.7          25.5               12.5 +/-    1.63      24.2 +/-    1.63  0.160 / 0.380
G15     274.2          13.7                9.9 +/-    1.39      25.3 +/-    1.39  0.160 / 0.290
G17     351.4          74.0               11.2 +/-    0.62      11.6 +/-    0.62  0.110 / 0.180
G19     264.5          67.0               10.9 +/-    0.59      11.8 +/-    0.59  0.090 / 0.150
G24     317.4          16.1                9.2 +/-    2.89      22.2 +/-    2.89  0.090 / 0.260
G28     59.9           52.3               11.1 +/-    0.35      13.6 +/-    0.35  0.080 / 0.250
G30     152.6          30.2               14.3 +/-    1.42      25.0 +/-    1.42  0.060 / 0.130