PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-20:58:10
G07     335.2          58.7                9.6 +/-    0.58      11.0 +/-    0.58  0.130 / 0.140
G08     101.1          53.1               12.3 +/-    0.68      15.0 +/-    0.68  0.070 / 0.120
G09     191.9          72.4               11.8 +/-    0.42      12.3 +/-    0.42  0.070 / 0.090
G11     146.9          13.5               14.5 +/-    1.78      37.5 +/-    1.78  0.160 / 0.060
G23     155.3          37.2               12.2 +/-    1.03      18.6 +/-    1.03  0.030 / 0.050
G27     52.7           30.1                8.7 +/-    1.91      15.2 +/-    1.91  0.030 / 0.040
G28     239.2          31.7               12.0 +/-    1.96      20.3 +/-    1.96  0.030 / 0.040
G30     305.7          39.2                9.0 +/-    1.17      13.3 +/-    1.17  0.030 / 0.040