PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-14:42:40
G05     51.8           11.8                5.2 +/-    2.01      13.9 +/-    2.01  0.210 / 0.190
G10     242.6          21.6                7.2 +/-    2.51      15.3 +/-    2.51  0.160 / 0.250
G13     62.8           33.0                6.7 +/-    0.64      11.0 +/-    0.64  0.350 / 0.930
G15     101.5          56.4                8.9 +/-    1.38      10.4 +/-    1.38  0.310 / 0.690
G16     304.6          15.4                4.0 +/-    4.19      10.0 +/-    4.19  0.040 / 0.060
G20     259.8          46.8                8.2 +/-    1.26      10.8 +/-    1.26  0.050 / 0.060
G21     323.8          53.5                6.8 +/-    1.04       8.2 +/-    1.04  0.120 / 0.150
G26     278.0          18.5                4.8 +/-    1.67      10.9 +/-    1.67  0.090 / 0.170
G29     160.0          62.6                9.5 +/-    0.83      10.6 +/-    0.83  0.030 / 0.040