PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/11-05:42:40
G05     49.6           14.1                2.9 +/-    2.29       7.3 +/-    2.29  0.150 / 0.270
G10     237.3          15.0                6.8 +/-    1.12      17.0 +/-    1.12  0.180 / 0.360
G13     72.5           35.4                7.4 +/-    1.24      11.7 +/-    1.24  0.060 / 0.040
G15     118.9          53.7                8.9 +/-    0.81      10.8 +/-    0.81  0.050 / 0.050
G16     316.1          10.6               -5.6 +/-    6.85     -15.4 +/-    6.85  0.110 / 0.250
G20     250.2          38.7                8.0 +/-    0.82      11.9 +/-    0.82  0.130 / 0.310
G21     317.5          50.0                5.3 +/-    1.30       6.6 +/-    1.30  0.070 / 0.100
G26     288.7          19.0                5.0 +/-    0.98      11.3 +/-    0.98  0.050 / 0.100
G29     152.1          64.9                7.3 +/-    0.31       8.0 +/-    0.31  0.120 / 0.240