PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/17-23:12:30
G10     304.2          54.5                8.1 +/-    1.09       9.7 +/-    1.09  0.120 / 0.660
G14     210.9          13.2               11.8 +/-    2.04      30.7 +/-    2.04  0.120 / 0.580
G15     45.8           25.4                7.8 +/-    1.77      15.2 +/-    1.77  0.040 / 0.040
G20     1.0            64.9                7.8 +/-    0.47       8.5 +/-    0.47  0.040 / 0.040
G21     104.3          72.8               10.0 +/-    0.87      10.4 +/-    0.87  0.100 / 0.170
G24     95.3           27.8                9.5 +/-    1.26      17.3 +/-    1.26  0.270 / 0.120
G27     297.5          35.5                8.9 +/-    1.72      13.9 +/-    1.72  0.110 / 0.150
G32     211.6          34.8               12.1 +/-    1.54      19.3 +/-    1.54  0.090 / 0.150