PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/26-09:27:50
G07     39.0           69.0                4.5 +/-    1.01       4.8 +/-    1.01  0.030 / 0.030
G08     60.0           48.0                3.3 +/-    1.42       4.3 +/-    1.42  0.030 / 0.030
G09     178.5          43.8                5.8 +/-    0.75       8.0 +/-    0.75  0.080 / 0.210
G11     126.3          31.9                4.3 +/-    1.02       7.3 +/-    1.02  0.080 / 0.250
G18     109.2          13.1                4.0 +/-    1.71      10.4 +/-    1.71  0.050 / 0.050
G23     159.6          12.2                4.0 +/-    2.52      10.6 +/-    2.52  0.070 / 0.070
G27     38.7           13.3                2.5 +/-    2.57       6.6 +/-    2.57  0.060 / 0.050
G28     260.4          43.1                5.4 +/-    2.55       7.5 +/-    2.55  0.050 / 0.050
G30     324.5          54.5                3.7 +/-    0.66       4.4 +/-    0.66  0.110 / 0.300