PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/08-13:27:50
G07     324.8          55.7                5.5 +/-    1.10       6.5 +/-    1.10  0.040 / 0.060
G08     117.9          46.8               10.0 +/-    1.16      13.1 +/-    1.16  0.040 / 0.060
G09     249.5          82.7                6.0 +/-    0.64       6.1 +/-    0.64  0.150 / 0.330
G16     43.7           17.0                4.9 +/-    1.44      11.5 +/-    1.44  0.200 / 0.380
G23     150.0          51.3                9.6 +/-    1.17      11.9 +/-    1.17  0.050 / 0.070
G27     68.5           36.6                6.0 +/-    0.54       9.2 +/-    0.54  0.060 / 0.080
G28     228.5          15.5                6.1 +/-    2.25      15.0 +/-    2.25  0.040 / 0.050
G30     295.1          31.2                6.6 +/-    1.77      11.3 +/-    1.77  0.040 / 0.060