PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/11-19:27:30
G07     321.3          54.3               11.9 +/-    0.67      14.3 +/-    0.67  0.030 / 0.040
G08     116.3          46.0               14.0 +/-    0.58      18.6 +/-    0.58  0.040 / 0.040
G09     261.2          82.9                9.7 +/-    0.49       9.8 +/-    0.49  0.360 / 0.400
G16     42.9           22.5                8.5 +/-    2.04      17.5 +/-    2.04  0.290 / 0.590
G23     150.2          57.0               13.7 +/-    1.16      16.0 +/-    1.16  0.030 / 0.020
G27     72.1           37.6               11.5 +/-    0.96      17.4 +/-    0.96  0.030 / 0.020
G28     227.6          15.4               10.7 +/-    8.79      26.4 +/-    8.79  0.070 / 0.070
G30     291.8          27.1               11.1 +/-    2.50      20.7 +/-    2.50  0.070 / 0.060