PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/04-21:27:40
G07     335.5          58.8               10.2 +/-    0.58      11.8 +/-    0.58  0.070 / 0.150
G08     100.2          53.1               13.4 +/-    0.73      16.3 +/-    0.73  0.070 / 0.130
G09     191.7          72.2               13.0 +/-    0.47      13.5 +/-    0.47  0.100 / 0.060
G11     147.0          13.5               17.9 +/-    1.73      46.2 +/-    1.73  0.110 / 0.090
G23     155.5          37.4               14.1 +/-    0.67      21.5 +/-    0.67  0.040 / 0.040
G27     52.5           29.9               11.0 +/-    1.59      19.2 +/-    1.59  0.040 / 0.040
G28     239.4          31.9               13.4 +/-    2.29      22.6 +/-    2.29  0.030 / 0.040
G30     306.0          39.6                9.6 +/-    1.16      14.1 +/-    1.16  0.030 / 0.040