PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-13:12:40
G07     322.8          55.0                4.7 +/-    0.79       5.6 +/-    0.79  0.030 / 0.060
G08     119.7          46.1                9.7 +/-    1.18      12.9 +/-    1.18  0.040 / 0.050
G09     260.3          82.7                6.8 +/-    1.15       6.8 +/-    1.15  0.210 / 0.560
G16     43.4           18.0                4.2 +/-    1.02       9.7 +/-    1.02  0.160 / 0.400
G23     149.3          52.5                8.1 +/-    0.45       9.9 +/-    0.45  0.050 / 0.100
G27     70.1           36.8                6.3 +/-    1.31       9.7 +/-    1.31  0.070 / 0.130
G28     227.8          14.5                6.2 +/-    4.19      15.6 +/-    4.19  0.040 / 0.060
G30     293.9          30.1                7.6 +/-    1.39      13.3 +/-    1.39  0.040 / 0.070