PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-14:28:00
G03     190.2          25.2                7.8 +/-    2.52      15.2 +/-    2.52  0.040 / 0.110
G07     287.3          39.1                8.5 +/-    2.05      12.5 +/-    2.05  0.110 / 0.110
G08     146.1          22.0                8.6 +/-    0.62      18.1 +/-    0.62  0.190 / 0.260
G09     320.2          54.3                8.3 +/-    0.45       9.9 +/-    0.45  0.290 / 0.220
G16     47.0           48.0                7.5 +/-    0.65       9.7 +/-    0.65  0.070 / 0.090
G23     71.4           82.8                8.4 +/-    1.10       8.5 +/-    1.10  0.060 / 0.080
G26     43.5           19.1                6.7 +/-    2.71      15.0 +/-    2.71  0.050 / 0.050
G27     109.5          30.0               10.9 +/-    0.94      19.1 +/-    0.94  0.040 / 0.070