PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/19-22:43:10
G10     290.1          50.1               12.3 +/-    0.88      15.5 +/-    0.88  0.040 / 0.050
G15     47.5           33.8                8.3 +/-    0.80      13.4 +/-    0.80  0.040 / 0.050
G20     338.5          65.1                9.6 +/-    0.48      10.5 +/-    0.48  0.060 / 0.110
G21     68.9           77.1               12.4 +/-    0.39      12.6 +/-    0.39  0.050 / 0.100
G24     105.3          24.0               10.0 +/-    1.19      19.9 +/-    1.19  0.080 / 0.230
G27     307.1          31.0               10.8 +/-    1.08      18.4 +/-    1.08  0.080 / 0.200
G29     167.9          13.3               12.6 +/-    1.10      32.7 +/-    1.10  0.160 / 0.340
G32     208.0          25.7               12.3 +/-    1.54      23.7 +/-    1.54  0.130 / 0.300