PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-22:28:00
G10     263.3          37.3               11.1 +/-    0.95      16.9 +/-    0.95  0.130 / 0.440
G13     43.4           20.1                8.3 +/-    1.63      18.2 +/-    1.63  0.130 / 0.330
G15     63.8           51.7               10.0 +/-    0.79      12.3 +/-    0.79  0.140 / 0.370
G16     282.8          13.6                9.9 +/-    1.43      25.4 +/-    1.43  0.130 / 0.360
G20     290.9          58.4               10.7 +/-    0.74      12.3 +/-    0.74  0.040 / 0.050
G21     353.0          68.7                9.4 +/-    0.51      10.0 +/-    0.51  0.040 / 0.050
G24     124.7          11.9               10.1 +/-    1.91      26.9 +/-    1.91  0.090 / 0.090
G27     320.5          15.3                6.3 +/-    1.33      15.7 +/-    1.33  0.060 / 0.090
G29     166.5          35.4               10.0 +/-    1.10      15.8 +/-    1.10  0.090 / 0.280