PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/30-02:42:50
G08     270.9          17.9               10.5 +/-    2.07      24.4 +/-    2.07  0.200 / 0.220
G10     63.6           56.9                9.5 +/-    0.66      11.1 +/-    0.66  0.170 / 0.200
G14     265.3          65.8               10.2 +/-    0.69      11.0 +/-    0.69  0.200 / 0.350
G18     312.3          32.8                7.9 +/-    1.07      13.0 +/-    1.07  0.180 / 0.430
G20     95.8           36.6                9.1 +/-    0.87      14.1 +/-    0.87  0.050 / 0.050
G21     155.4          15.9                9.5 +/-    1.84      23.2 +/-    1.84  0.050 / 0.040
G24     40.0           10.1                6.2 +/-    2.44      17.1 +/-    2.44  0.060 / 0.110
G27     232.0          16.2               12.6 +/-    1.50      30.4 +/-    1.50  0.070 / 0.110
G31     177.0          31.7               12.2 +/-    1.66      20.7 +/-    1.66  0.020 / 0.020
G32     336.1          74.4                9.0 +/-    0.28       9.3 +/-    0.28  0.020 / 0.020