PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/26-18:58:10
G07     301.7          43.5               14.5 +/-    3.04      19.9 +/-    3.04  0.050 / 0.060
G08     137.1          36.1               18.0 +/-    0.89      27.9 +/-    0.89  0.040 / 0.050
G09     313.1          73.5               13.6 +/-    0.52      14.1 +/-    0.52  0.030 / 0.030
G16     41.7           27.7               11.0 +/-    1.05      20.3 +/-    1.05  0.030 / 0.040
G23     139.2          64.8               14.0 +/-    0.20      15.3 +/-    0.20  0.030 / 0.030
G27     84.1           36.8               14.2 +/-    1.11      21.7 +/-    1.11  0.030 / 0.020
G30     283.5          21.6               14.6 +/-    3.06      30.8 +/-    3.06  0.060 / 0.080