PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/09-19:42:50
G07     325.6          55.9               11.6 +/-    0.55      13.8 +/-    0.55  0.040 / 0.040
G08     111.9          47.7               13.9 +/-    0.64      18.0 +/-    0.64  0.030 / 0.050
G09     233.3          82.5               11.8 +/-    0.58      11.8 +/-    0.58  0.030 / 0.030
G16     43.5           19.7                8.6 +/-    2.45      19.2 +/-    2.45  0.030 / 0.020
G23     151.9          53.7               13.5 +/-    0.68      16.4 +/-    0.68  0.060 / 0.050
G27     68.2           36.9               11.8 +/-    1.09      18.0 +/-    1.09  0.050 / 0.050
G28     229.4          18.0               13.9 +/-    3.61      32.0 +/-    3.61  0.110 / 0.340
G30     294.2          29.0               10.5 +/-    1.69      18.8 +/-    1.69  0.180 / 0.340