PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/08-21:58:00
G10     245.8          24.2               11.9 +/-    0.96      23.7 +/-    0.96  0.150 / 0.830
G13     58.5           31.6               10.1 +/-    1.14      17.2 +/-    1.14  0.140 / 0.580
G15     98.4           57.9               11.1 +/-    0.52      12.8 +/-    0.52  0.040 / 0.060
G16     301.6          15.4                6.0 +/-    2.96      14.8 +/-    2.96  0.050 / 0.060
G20     262.9          47.0               11.7 +/-    0.75      15.4 +/-    0.75  0.050 / 0.120
G21     326.8          55.4                8.8 +/-    0.78      10.4 +/-    0.78  0.060 / 0.140
G26     273.8          17.4               10.8 +/-    1.19      25.4 +/-    1.19  0.090 / 0.190
G29     161.3          56.4               11.3 +/-    1.08      13.2 +/-    1.08  0.090 / 0.150