PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/11-07:43:10
G05     48.6           16.6                1.5 +/-    0.94       3.7 +/-    0.94  0.050 / 0.070
G10     235.6          12.8                2.1 +/-   18.17       5.5 +/-   18.17  0.040 / 0.050
G13     76.1           35.8                6.8 +/-    1.32      10.6 +/-    1.32  0.290 / 0.170
G15     123.8          52.1                6.6 +/-    0.55       8.1 +/-    0.55  0.120 / 0.170
G20     247.7          36.7                7.6 +/-    1.98      11.7 +/-    1.98  0.270 / 0.550
G21     316.2          49.4                3.9 +/-    0.97       5.0 +/-    0.97  0.210 / 0.470
G25     198.0          10.7                2.6 +/-    2.75       7.1 +/-    2.75  0.070 / 0.080
G26     292.8          18.6                4.3 +/-    0.70       9.7 +/-    0.70  0.050 / 0.080
G29     149.6          67.3                6.4 +/-    0.70       6.9 +/-    0.70  0.060 / 0.110