PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-06:42:40
G05     49.4           14.7                3.7 +/-    1.89       9.3 +/-    1.89  0.060 / 0.050
G10     236.9          14.4                5.0 +/-    2.13      12.7 +/-    2.13  0.070 / 0.060
G13     73.4           35.6                6.2 +/-    0.87       9.7 +/-    0.87  0.050 / 0.100
G15     120.2          53.3                7.4 +/-    0.67       9.0 +/-    0.67  0.060 / 0.090
G20     249.6          38.3                7.6 +/-    1.17      11.4 +/-    1.17  0.130 / 0.230
G21     317.5          50.1                5.3 +/-    1.22       6.7 +/-    1.22  0.110 / 0.210
G26     290.0          18.9                4.8 +/-    1.00      10.8 +/-    1.00  0.120 / 0.180
G29     151.2          64.7                7.9 +/-    0.34       8.6 +/-    0.34  0.150 / 0.200