PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-09:28:10
G01     315.9          24.0                4.9 +/-    1.93       9.9 +/-    1.93  0.040 / 0.060
G10     90.8           48.8                5.9 +/-    0.36       7.6 +/-    0.36  0.050 / 0.050
G11     296.8          25.3                5.6 +/-    1.67      11.0 +/-    1.67  0.140 / 0.190
G14     307.3          69.4                4.4 +/-    0.59       4.7 +/-    0.59  0.140 / 0.260
G18     297.1          44.6                5.0 +/-    1.52       6.8 +/-    1.52  0.100 / 0.180
G22     305.5          19.9                3.4 +/-    0.98       7.4 +/-    0.98  0.080 / 0.170
G25     95.1           11.9                2.8 +/-    2.25       7.5 +/-    2.25  0.030 / 0.030
G31     171.3          52.5                6.1 +/-    1.19       7.4 +/-    1.19  0.030 / 0.030
G32     23.3           60.5                5.3 +/-    0.43       6.0 +/-    0.43  0.050 / 0.040