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                8.9 +/-    3.19      19.8 +/-    3.19  0.090 / 0.090
G06     177.1          32.2               14.7 +/-    2.29      24.6 +/-    2.29  0.080 / 0.130
G13     240.7          25.5               10.9 +/-    1.98      21.1 +/-    1.98  0.410 / 0.270
G15     274.2          13.7                7.8 +/-    1.08      20.0 +/-    1.08  0.260 / 0.330
G17     351.4          74.0               11.5 +/-    0.37      11.9 +/-    0.37  0.040 / 0.050
G19     264.5          67.0               11.0 +/-    0.77      11.9 +/-    0.77  0.040 / 0.060
G24     317.4          16.1                8.1 +/-    2.05      19.6 +/-    2.05  0.090 / 0.220
G28     59.9           52.3               10.4 +/-    0.55      12.8 +/-    0.55  0.080 / 0.250
G30     152.6          30.2               14.4 +/-    0.80      25.2 +/-    0.80  0.070 / 0.110