PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/16-17:57:40
G10     263.5          37.6               12.3 +/-    0.71      18.6 +/-    0.71  0.130 / 0.350
G13     43.3           19.9                9.2 +/-    1.17      20.3 +/-    1.17  0.180 / 0.320
G15     62.4           50.4               10.4 +/-    0.33      13.0 +/-    0.33  0.080 / 0.340
G20     293.8          59.8               11.1 +/-    0.62      12.7 +/-    0.62  0.090 / 0.390
G21     354.2          68.9               10.4 +/-    0.89      11.1 +/-    0.89  0.090 / 0.050
G24     125.4          11.8               12.0 +/-    1.96      32.1 +/-    1.96  0.080 / 0.050
G27     320.3          15.7                6.6 +/-    1.62      16.2 +/-    1.62  0.090 / 0.230
G29     166.9          36.3               11.7 +/-    1.28      18.2 +/-    1.28  0.070 / 0.250