PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/08-16:27:50
G10     265.5          38.9                8.5 +/-    1.06      12.6 +/-    1.06  0.130 / 0.220
G13     42.3           18.5                7.1 +/-    3.35      16.2 +/-    3.35  0.220 / 0.120
G15     59.3           48.1                7.9 +/-    1.04      10.2 +/-    1.04  0.130 / 0.350
G16     280.0          13.3                5.2 +/-    1.71      13.5 +/-    1.71  0.140 / 0.340
G20     298.4          61.1                8.6 +/-    0.90       9.7 +/-    0.90  0.060 / 0.040
G21     359.2          70.4                8.2 +/-    0.82       8.6 +/-    0.82  0.050 / 0.050
G24     123.8          12.9                9.6 +/-    2.80      25.0 +/-    2.80  0.180 / 0.310
G27     319.6          17.3                7.8 +/-    2.56      18.3 +/-    2.56  0.190 / 0.290
G29     167.2          34.4                9.3 +/-    0.96      14.9 +/-    0.96  0.050 / 0.090