PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/22-21:42:50
G10     263.3          37.3               11.9 +/-    1.00      18.1 +/-    1.00  0.040 / 0.030
G13     43.4           20.1                7.9 +/-    1.59      17.4 +/-    1.59  0.050 / 0.050
G15     64.1           52.0               10.7 +/-    0.96      13.2 +/-    0.96  0.130 / 0.340
G16     282.6          13.7                9.3 +/-    1.64      23.8 +/-    1.64  0.130 / 0.370
G20     291.4          58.7               11.8 +/-    0.79      13.6 +/-    0.79  0.140 / 0.400
G21     352.9          68.7                9.7 +/-    0.62      10.4 +/-    0.62  0.130 / 0.430
G24     124.8          11.8               11.6 +/-    3.35      31.0 +/-    3.35  0.120 / 0.340
G27     320.5          15.3                5.9 +/-    1.65      14.7 +/-    1.65  0.130 / 0.390
G29     166.6          35.6               11.2 +/-    0.86      17.6 +/-    0.86  0.090 / 0.330