PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-12:43:00
G03     226.5          68.0                5.2 +/-    0.67       5.6 +/-    0.67  0.050 / 0.070
G07     249.0          12.5                3.3 +/-    3.17       8.6 +/-    3.17  0.050 / 0.070
G09     302.8          16.9                3.5 +/-    2.20       8.3 +/-    2.20  0.040 / 0.040
G14     99.5           14.0                7.3 +/-    1.70      18.7 +/-    1.70  0.060 / 0.040
G16     131.8          57.8                7.4 +/-    0.34       8.6 +/-    0.34  0.040 / 0.040
G22     191.2          53.0                6.0 +/-    2.08       7.4 +/-    2.08  0.050 / 0.040
G23     319.9          49.9                3.3 +/-    0.95       4.2 +/-    0.95  0.100 / 0.260
G26     71.8           53.0                4.2 +/-    0.38       5.1 +/-    0.38  0.110 / 0.290
G31     52.3           19.5                4.9 +/-    1.14      10.9 +/-    1.14  0.040 / 0.070