PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/19-03:27:50
G08     270.3          18.0               11.5 +/-    1.83      26.6 +/-    1.83  0.190 / 0.440
G10     63.5           56.9                8.6 +/-    0.81      10.0 +/-    0.81  0.180 / 0.500
G14     265.7          66.0                9.1 +/-    0.61       9.9 +/-    0.61  0.040 / 0.040
G18     312.2          32.9                7.3 +/-    1.13      12.1 +/-    1.13  0.050 / 0.060
G20     95.7           36.8                8.0 +/-    0.63      12.4 +/-    0.63  0.200 / 0.280
G21     155.3          15.8                8.8 +/-    2.58      21.5 +/-    2.58  0.170 / 0.220
G24     39.9           10.0                6.7 +/-    1.83      18.7 +/-    1.83  0.060 / 0.120
G27     232.1          16.2               12.5 +/-    1.81      30.3 +/-    1.81  0.060 / 0.120
G31     177.1          31.6               11.0 +/-    1.83      18.6 +/-    1.83  0.030 / 0.020
G32     334.6          74.5                8.7 +/-    0.82       9.0 +/-    0.82  0.030 / 0.030