PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-15:57:40
G07     337.3          59.9                9.8 +/-    0.96      11.2 +/-    0.96  0.110 / 0.210
G08     105.6          50.3               10.9 +/-    0.56      13.7 +/-    0.56  0.100 / 0.220
G09     206.4          78.8                9.4 +/-    0.65       9.5 +/-    0.65  0.170 / 0.320
G11     147.4          11.5                9.8 +/-    4.42      26.4 +/-    4.42  0.150 / 0.350
G16     45.3           12.7                7.7 +/-    2.01      20.3 +/-    2.01  0.040 / 0.060
G23     153.8          45.6               11.2 +/-    1.20      14.9 +/-    1.20  0.030 / 0.050
G27     60.8           34.6                8.1 +/-    0.80      12.9 +/-    0.80  0.050 / 0.080
G28     232.9          21.7               10.0 +/-    0.78      21.2 +/-    0.78  0.050 / 0.080
G30     299.8          34.4                9.3 +/-    0.84      14.9 +/-    0.84  0.130 / 0.240