PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-14:27:30
G07     0.0            65.1                8.3 +/-    0.38       9.1 +/-    0.38  0.120 / 0.160
G08     84.4           52.7                9.0 +/-    1.37      11.0 +/-    1.37  0.080 / 0.150
G09     185.3          65.2                9.5 +/-    0.53      10.4 +/-    0.53  0.150 / 0.300
G11     139.1          20.0                8.5 +/-    1.78      18.8 +/-    1.78  0.150 / 0.310
G23     157.4          30.5                9.8 +/-    1.11      17.0 +/-    1.11  0.040 / 0.040
G27     48.4           27.3                6.6 +/-    1.89      12.3 +/-    1.89  0.030 / 0.040
G28     242.8          31.6                9.5 +/-    2.00      16.2 +/-    2.00  0.100 / 0.190
G30     311.7          44.4                7.2 +/-    1.25       9.7 +/-    1.25  0.090 / 0.170