PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-23:27:40
G08     304.1          20.1                7.6 +/-    1.96      16.7 +/-    1.96  0.040 / 0.060
G10     355.7          62.4                7.2 +/-    0.46       8.1 +/-    0.46  0.040 / 0.050
G14     223.5          38.1               12.0 +/-    2.11      18.1 +/-    2.11  0.130 / 0.140
G20     55.5           55.5                8.9 +/-    0.86      10.5 +/-    0.86  0.090 / 0.120
G21     142.7          48.5               10.8 +/-    0.53      13.9 +/-    0.53  0.110 / 0.310
G24     64.1           28.8                8.5 +/-    1.45      15.3 +/-    1.45  0.110 / 0.260
G27     262.9          35.2               12.6 +/-    2.25      19.9 +/-    2.25  0.050 / 0.030
G32     233.2          61.6               11.0 +/-    1.23      12.3 +/-    1.23  0.070 / 0.030