PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/13-15:28:10
G03     188.1          15.6               10.8 +/-    3.88      26.6 +/-    3.88  0.050 / 0.110
G07     295.2          40.0               10.3 +/-    0.96      15.0 +/-    0.96  0.060 / 0.090
G08     140.3          31.5               13.1 +/-    0.43      22.2 +/-    0.43  0.180 / 0.360
G09     318.7          68.1                8.2 +/-    1.27       8.7 +/-    1.27  0.200 / 0.390
G16     41.8           32.3                8.6 +/-    1.14      14.3 +/-    1.14  0.080 / 0.130
G23     131.0          69.5               11.3 +/-    0.81      12.0 +/-    0.81  0.050 / 0.130
G27     92.6           35.6               11.9 +/-    0.53      18.7 +/-    0.53  0.050 / 0.090
G30     278.0          16.4               10.2 +/-    1.91      24.4 +/-    1.91  0.050 / 0.080