PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-23:27:50
G08     304.1          20.1               10.8 +/-    2.45      23.8 +/-    2.45  0.040 / 0.080
G10     355.7          62.4                7.5 +/-    0.80       8.4 +/-    0.80  0.040 / 0.070
G14     223.5          38.1               14.5 +/-    1.49      21.8 +/-    1.49  0.070 / 0.140
G20     55.5           55.5                9.4 +/-    0.54      11.2 +/-    0.54  0.110 / 0.160
G21     142.7          48.5               10.7 +/-    1.18      13.7 +/-    1.18  0.070 / 0.090
G24     64.1           28.8                7.7 +/-    0.97      13.8 +/-    0.97  0.060 / 0.090
G27     262.9          35.2               12.2 +/-    0.75      19.3 +/-    0.75  0.060 / 0.080
G32     233.2          61.6               12.9 +/-    0.86      14.4 +/-    0.86  0.050 / 0.100