PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-15:28:00
G07     317.5          51.5               12.0 +/-    1.70      14.9 +/-    1.70  0.050 / 0.070
G08     119.3          47.1               14.4 +/-    0.83      18.9 +/-    0.83  0.040 / 0.060
G09     236.1          82.8               11.9 +/-    0.49      12.0 +/-    0.49  0.030 / 0.060
G16     43.9           14.4                9.7 +/-    1.31      24.4 +/-    1.31  0.030 / 0.060
G23     149.5          49.2               13.2 +/-    1.43      16.8 +/-    1.43  0.070 / 0.150
G27     66.8           35.9               10.5 +/-    0.73      16.4 +/-    0.73  0.080 / 0.150
G28     229.6          20.8               13.7 +/-    2.78      29.7 +/-    2.78  0.150 / 0.340
G30     293.6          28.4                9.0 +/-    0.69      16.3 +/-    0.69  0.120 / 0.270