PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/14-05:43:10
G05     51.9           9.5                 1.7 +/-    2.27       4.9 +/-    2.27  0.040 / 0.050
G10     241.4          19.4                6.0 +/-    1.67      13.5 +/-    1.67  0.050 / 0.050
G13     65.3           34.1                5.6 +/-    1.08       9.0 +/-    1.08  0.160 / 0.320
G15     107.9          56.3                6.8 +/-    0.57       8.0 +/-    0.57  0.340 / 0.390
G16     310.8          12.5                3.6 +/-    1.09       9.4 +/-    1.09  0.090 / 0.170
G20     256.2          43.1                8.1 +/-    1.90      11.2 +/-    1.90  0.110 / 0.260
G21     323.6          53.8                5.5 +/-    0.76       6.6 +/-    0.76  0.180 / 0.360
G26     282.6          18.3                5.4 +/-    0.97      12.3 +/-    0.97  0.130 / 0.330
G29     156.2          58.3                6.0 +/-    0.61       6.9 +/-    0.61  0.080 / 0.110